TQt4 port kdeutils

This enables compilation under both Qt3 and Qt4


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeutils@1238125 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

24 files changed, 248 insertions, 242 deletions

diff --git a/kcalc/colors.ui b/kcalc/colors.ui
index 26f4b28..e6b4513 100644
--- a/kcalc/colors.ui
+++ b/kcalc/colors.ui
@@ -1,6 +1,6 @@
 <!DOCTYPE UI><UI version="3.2" stdsetdef="1">
 <class>Colors</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>Colors</cstring>
     </property>
@@ -19,7 +19,7 @@
         <property name="margin">
             <number>0</number>
         </property>
-        <widget class="QGroupBox">
+        <widget class="TQGroupBox">
             <property name="name">
                 <cstring>groupBox3</cstring>
             </property>
@@ -30,7 +30,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel" row="0" column="0">
+                <widget class="TQLabel" row="0" column="0">
                     <property name="name">
                         <cstring>textLabel3</cstring>
                     </property>
@@ -41,7 +41,7 @@
                         <cstring>kcfg_ForeColor</cstring>
                     </property>
                 </widget>
-                <widget class="QLabel" row="1" column="0">
+                <widget class="TQLabel" row="1" column="0">
                     <property name="name">
                         <cstring>textLabel4</cstring>
                     </property>
@@ -62,7 +62,7 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>110</width>
                             <height>20</height>
@@ -101,7 +101,7 @@
                 </widget>
             </grid>
         </widget>
-        <widget class="QGroupBox">
+        <widget class="TQGroupBox">
             <property name="name">
                 <cstring>groupBox4</cstring>
             </property>
@@ -112,7 +112,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QLabel" row="0" column="0" rowspan="1" colspan="2">
+                <widget class="TQLabel" row="0" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>textLabel5</cstring>
                     </property>
@@ -123,7 +123,7 @@
                         <cstring>kcfg_FunctionButtonsColor</cstring>
                     </property>
                 </widget>
-                <widget class="QLabel" row="2" column="0" rowspan="1" colspan="2">
+                <widget class="TQLabel" row="2" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>textLabel7</cstring>
                     </property>
@@ -134,7 +134,7 @@
                         <cstring>kcfg_HexButtonsColor</cstring>
                     </property>
                 </widget>
-                <widget class="QLabel" row="5" column="0" rowspan="1" colspan="2">
+                <widget class="TQLabel" row="5" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>textLabel10</cstring>
                     </property>
@@ -179,7 +179,7 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>41</width>
                             <height>20</height>
@@ -202,7 +202,7 @@
                         <string></string>
                     </property>
                 </widget>
-                <widget class="QLabel" row="3" column="0">
+                <widget class="TQLabel" row="3" column="0">
                     <property name="name">
                         <cstring>textLabel8</cstring>
                     </property>
@@ -221,7 +221,7 @@
                         <string></string>
                     </property>
                 </widget>
-                <widget class="QLabel" row="1" column="0">
+                <widget class="TQLabel" row="1" column="0">
                     <property name="name">
                         <cstring>textLabel6</cstring>
                     </property>
@@ -232,7 +232,7 @@
                         <cstring>kcfg_StatButtonsColor</cstring>
                     </property>
                 </widget>
-                <widget class="QLabel" row="4" column="0" rowspan="1" colspan="2">
+                <widget class="TQLabel" row="4" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>textLabel9</cstring>
                     </property>
@@ -255,7 +255,7 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>0</height>
@@ -274,5 +274,5 @@
     <tabstop>kcfg_MemoryButtonsColor</tabstop>
     <tabstop>kcfg_OperationButtonsColor</tabstop>
 </tabstops>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 </UI>
diff --git a/kcalc/constants.ui b/kcalc/constants.ui
index f7c734e..82fe7d2 100644
--- a/kcalc/constants.ui
+++ b/kcalc/constants.ui
@@ -1,6 +1,6 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>Constants</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>Constants</cstring>
     </property>
@@ -19,7 +19,7 @@
         <property name="name">
             <cstring>unnamed</cstring>
         </property>
-        <widget class="QGroupBox">
+        <widget class="TQGroupBox">
             <property name="name">
                 <cstring>mainGroupBox</cstring>
             </property>
@@ -30,7 +30,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox0</cstring>
                     </property>
@@ -41,7 +41,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant0</cstring>
                             </property>
@@ -59,14 +59,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant0</cstring>
                             </property>
@@ -84,7 +84,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -101,7 +101,7 @@
                         </widget>
                     </hbox>
                 </widget>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox1</cstring>
                     </property>
@@ -112,7 +112,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant1</cstring>
                             </property>
@@ -130,14 +130,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant1</cstring>
                             </property>
@@ -155,7 +155,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -172,7 +172,7 @@
                         </widget>
                     </hbox>
                 </widget>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox2</cstring>
                     </property>
@@ -183,7 +183,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant2</cstring>
                             </property>
@@ -201,14 +201,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant2</cstring>
                             </property>
@@ -226,7 +226,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -243,7 +243,7 @@
                         </widget>
                     </hbox>
                 </widget>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox3</cstring>
                     </property>
@@ -254,7 +254,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant3</cstring>
                             </property>
@@ -272,14 +272,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant3</cstring>
                             </property>
@@ -297,7 +297,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -314,7 +314,7 @@
                         </widget>
                     </hbox>
                 </widget>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox4</cstring>
                     </property>
@@ -325,7 +325,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant4</cstring>
                             </property>
@@ -343,14 +343,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant4</cstring>
                             </property>
@@ -368,7 +368,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -385,7 +385,7 @@
                         </widget>
                     </hbox>
                 </widget>
-                <widget class="QGroupBox">
+                <widget class="TQGroupBox">
                     <property name="name">
                         <cstring>groupBox5</cstring>
                     </property>
@@ -396,7 +396,7 @@
                         <property name="name">
                             <cstring>unnamed</cstring>
                         </property>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_nameConstant5</cstring>
                             </property>
@@ -414,14 +414,14 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>70</width>
                                     <height>21</height>
                                 </size>
                             </property>
                         </spacer>
-                        <widget class="QLineEdit">
+                        <widget class="TQLineEdit">
                             <property name="name">
                                 <cstring>kcfg_valueConstant5</cstring>
                             </property>
@@ -439,7 +439,7 @@
                             <property name="sizeType">
                                 <enum>Expanding</enum>
                             </property>
-                            <property name="sizeHint">
+                            <property name="tqsizeHint">
                                 <size>
                                     <width>80</width>
                                     <height>21</height>
@@ -468,7 +468,7 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>40</height>
@@ -479,7 +479,7 @@
 </widget>
 <customwidgets>
 </customwidgets>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 <includehints>
     <includehint>kpushbutton.h</includehint>
     <includehint>kpushbutton.h</includehint>
diff --git a/kcalc/dlabel.cpp b/kcalc/dlabel.cpp
index c4dbb17..5591655 100644
--- a/kcalc/dlabel.cpp
+++ b/kcalc/dlabel.cpp
@@ -2,7 +2,7 @@
     $Id$
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
     
     Copyright (C) 1996 Bernd Johannes Wuebben   
                        wuebben@math.cornell.edu
@@ -34,9 +34,9 @@
 
 
 
-DispLogic::DispLogic(TQWidget *parent, const char *name,
+DispLogic::DispLogic(TQWidget *tqparent, const char *name,
 		     KActionCollection *coll)
-  :KCalcDisplay(parent,name), _history_index(0)
+  :KCalcDisplay(tqparent,name), _history_index(0)
 {
 	KNumber::setDefaultFloatOutput(true);
 	KNumber::setDefaultFractionalInput(true);
diff --git a/kcalc/dlabel.h b/kcalc/dlabel.h
index 0a7c386..e2d0395 100644
--- a/kcalc/dlabel.h
+++ b/kcalc/dlabel.h
@@ -38,9 +38,10 @@ class KActionCollection;
 class DispLogic : public KCalcDisplay
 {
 Q_OBJECT
+  TQ_OBJECT
 
 public:
-	DispLogic(TQWidget *parent, const char *name,
+	DispLogic(TQWidget *tqparent, const char *name,
 		  KActionCollection *coll);
 	~DispLogic();
 
diff --git a/kcalc/general.ui b/kcalc/general.ui
index 7ec8b15..59ba2f3 100644
--- a/kcalc/general.ui
+++ b/kcalc/general.ui
@@ -1,6 +1,6 @@
 <!DOCTYPE UI><UI version="3.3" stdsetdef="1">
 <class>General</class>
-<widget class="QWidget">
+<widget class="TQWidget">
     <property name="name">
         <cstring>General</cstring>
     </property>
@@ -22,7 +22,7 @@
         <property name="margin">
             <number>0</number>
         </property>
-        <widget class="QGroupBox">
+        <widget class="TQGroupBox">
             <property name="name">
                 <cstring>groupBox1</cstring>
             </property>
@@ -33,7 +33,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QCheckBox" row="1" column="0" rowspan="1" colspan="2">
+                <widget class="TQCheckBox" row="1" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>kcfg_Fixed</cstring>
                     </property>
@@ -41,7 +41,7 @@
                         <string>Set &amp;decimal precision</string>
                     </property>
                 </widget>
-                <widget class="QLabel" row="2" column="1">
+                <widget class="TQLabel" row="2" column="1">
                     <property name="name">
                         <cstring>textLabel1</cstring>
                     </property>
@@ -55,7 +55,7 @@
                         <cstring>kcfg_FixedPrecision</cstring>
                     </property>
                 </widget>
-                <widget class="QSpinBox" row="2" column="2">
+                <widget class="TQSpinBox" row="2" column="2">
                     <property name="name">
                         <cstring>kcfg_FixedPrecision</cstring>
                     </property>
@@ -73,14 +73,14 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>21</width>
                             <height>20</height>
                         </size>
                     </property>
                 </spacer>
-                <widget class="QLabel" row="0" column="0" rowspan="1" colspan="2">
+                <widget class="TQLabel" row="0" column="0" rowspan="1" colspan="2">
                     <property name="name">
                         <cstring>textLabel2</cstring>
                     </property>
@@ -101,21 +101,21 @@
                     <property name="sizeType">
                         <enum>Expanding</enum>
                     </property>
-                    <property name="sizeHint">
+                    <property name="tqsizeHint">
                         <size>
                             <width>101</width>
                             <height>20</height>
                         </size>
                     </property>
                 </spacer>
-                <widget class="QSpinBox" row="0" column="2">
+                <widget class="TQSpinBox" row="0" column="2">
                     <property name="name">
                         <cstring>kcfg_Precision</cstring>
                     </property>
                 </widget>
             </grid>
         </widget>
-        <widget class="QGroupBox">
+        <widget class="TQGroupBox">
             <property name="name">
                 <cstring>groupBox2</cstring>
             </property>
@@ -126,7 +126,7 @@
                 <property name="name">
                     <cstring>unnamed</cstring>
                 </property>
-                <widget class="QCheckBox">
+                <widget class="TQCheckBox">
                     <property name="name">
                         <cstring>kcfg_Beep</cstring>
                     </property>
@@ -137,7 +137,7 @@
                         <bool>true</bool>
                     </property>
                 </widget>
-                <widget class="QCheckBox">
+                <widget class="TQCheckBox">
                     <property name="name">
                         <cstring>kcfg_CaptionResult</cstring>
                     </property>
@@ -145,7 +145,7 @@
                         <string>Show &amp;result in window title</string>
                     </property>
                 </widget>
-                <widget class="QCheckBox">
+                <widget class="TQCheckBox">
                     <property name="name">
                         <cstring>kcfg_GroupDigits</cstring>
                     </property>
@@ -165,7 +165,7 @@
             <property name="sizeType">
                 <enum>Expanding</enum>
             </property>
-            <property name="sizeHint">
+            <property name="tqsizeHint">
                 <size>
                     <width>20</width>
                     <height>31</height>
@@ -195,5 +195,5 @@
     <tabstop>kcfg_Beep</tabstop>
     <tabstop>kcfg_CaptionResult</tabstop>
 </tabstops>
-<layoutdefaults spacing="6" margin="11"/>
+<tqlayoutdefaults spacing="6" margin="11"/>
 </UI>
diff --git a/kcalc/kcalc.cpp b/kcalc/kcalc.cpp
index 515536f..df773b2 100644
--- a/kcalc/kcalc.cpp
+++ b/kcalc/kcalc.cpp
@@ -78,8 +78,8 @@ static const char description[] = I18N_NOOP("KDE Calculator");
 static const char version[] = KCALCVERSION;
 
 
-KCalculator::KCalculator(TQWidget *parent, const char *name)
-	: KMainWindow(parent, name), inverse(false),
+KCalculator::KCalculator(TQWidget *tqparent, const char *name)
+	: KMainWindow(tqparent, name), inverse(false),
 	  hyp_mode(false), memory_num(0.0), calc_display(NULL),
 	  mInternalSpacing(4), core()
 {
@@ -106,7 +106,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	// Create Button to select BaseMode
 	BaseChooseGroup = new TQHButtonGroup(i18n("Base"), central);
 	connect(BaseChooseGroup, TQT_SIGNAL(clicked(int)), TQT_SLOT(slotBaseSelected(int)));
-	BaseChooseGroup->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Fixed, false);
+	BaseChooseGroup->tqsetSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Fixed, false);
 
 
 	pbBaseChoose[0] =  new TQRadioButton(i18n("He&x"), BaseChooseGroup,
@@ -155,7 +155,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	//  Create Calculator Buttons
 	//
 
-	// First the widgets that are the parents of the buttons
+	// First the widgets that are the tqparents of the buttons
 	mSmallPage = new TQWidget(central);
 	mLargePage = new TQWidget(central);
 	mNumericPage = 	setupNumericKeys(central);
@@ -228,7 +228,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 
 
 	//
-	// All these layouts are needed because all the groups have their
+	// All these tqlayouts are needed because all the groups have their
 	// own size per row so we can't use one huge TQGridLayout (mosfet)
 	//
 	TQGridLayout *smallBtnLayout = new TQGridLayout(mSmallPage, 6, 4, 0,
@@ -246,54 +246,54 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	mainLayout->addLayout(topLayout);
 	mainLayout->addLayout(btnLayout);
 
-	// button layout
+	// button tqlayout
 	btnLayout->addWidget(mSmallPage, 0, AlignTop);
 	btnLayout->addSpacing(2*mInternalSpacing);
 	btnLayout->addWidget(mNumericPage, 0, AlignTop);
 	btnLayout->addSpacing(2*mInternalSpacing);
 	btnLayout->addWidget(mLargePage, 0, AlignTop);
 
-	// small button layout
+	// small button tqlayout
 	smallBtnLayout->addWidget(pbStat["NumData"], 0, 0);
 	smallBtnLayout->addWidget(pbScientific["HypMode"], 0, 1);
 	smallBtnLayout->addWidget(pbLogic["AND"], 0, 2);
 	smallBtnLayout->addWidget(pbMod, 0, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xA), 0, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xA), 0, 4);
 	smallBtnLayout->addWidget(pbConstant[0], 0, 5);
 
 	smallBtnLayout->addWidget(pbStat["Mean"], 1, 0);
 	smallBtnLayout->addWidget(pbScientific["Sine"], 1, 1);
 	smallBtnLayout->addWidget(pbLogic["OR"], 1, 2);
 	smallBtnLayout->addWidget(pbReci, 1, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xB), 1, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xB), 1, 4);
 	smallBtnLayout->addWidget(pbConstant[1], 1, 5);
 
 	smallBtnLayout->addWidget(pbStat["StandardDeviation"], 2, 0);
 	smallBtnLayout->addWidget(pbScientific["Cosine"], 2, 1);
 	smallBtnLayout->addWidget(pbLogic["XOR"], 2, 2);
 	smallBtnLayout->addWidget(pbFactorial, 2, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xC), 2, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xC), 2, 4);
 	smallBtnLayout->addWidget(pbConstant[2], 2, 5);
 
 	smallBtnLayout->addWidget(pbStat["Median"], 3, 0);
 	smallBtnLayout->addWidget(pbScientific["Tangent"], 3, 1);
 	smallBtnLayout->addWidget(pbLogic["LeftShift"], 3, 2);
 	smallBtnLayout->addWidget(pbSquare, 3, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xD), 3, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xD), 3, 4);
 	smallBtnLayout->addWidget(pbConstant[3], 3, 5);
 
 	smallBtnLayout->addWidget(pbStat["InputData"], 4, 0);
 	smallBtnLayout->addWidget(pbScientific["Log10"], 4, 1);
 	smallBtnLayout->addWidget(pbLogic["RightShift"], 4, 2);
 	smallBtnLayout->addWidget(pbRoot, 4, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xE), 4, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xE), 4, 4);
 	smallBtnLayout->addWidget(pbConstant[4], 4, 5);
 
 	smallBtnLayout->addWidget(pbStat["ClearData"], 5, 0);
 	smallBtnLayout->addWidget(pbScientific["LogNatural"], 5, 1);
 	smallBtnLayout->addWidget(pbLogic["One-Complement"], 5, 2);
 	smallBtnLayout->addWidget(pbPower, 5, 3);
-	smallBtnLayout->addWidget(NumButtonGroup->find(0xF), 5, 4);
+	smallBtnLayout->addWidget(NumButtonGroup->tqfind(0xF), 5, 4);
 	smallBtnLayout->addWidget(pbConstant[5], 5, 5);
 
 	smallBtnLayout->setRowStretch(0, 0);
@@ -303,7 +303,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	smallBtnLayout->setRowStretch(4, 0);
 	smallBtnLayout->setRowStretch(5, 0);
 
-	// large button layout
+	// large button tqlayout
 	largeBtnLayout->addWidget(pbClear, 0, 0);
 	largeBtnLayout->addWidget(pbAC, 0, 1);
 
@@ -319,7 +319,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	largeBtnLayout->addWidget(pbPercent, 4, 0);
 	largeBtnLayout->addWidget(pbPlusMinus, 4, 1);
 
-	// top layout
+	// top tqlayout
 	topLayout->addWidget(pbAngleChoose);
 	topLayout->addWidget(BaseChooseGroup);
 	topLayout->addStretch();
@@ -381,7 +381,7 @@ KCalculator::KCalculator(TQWidget *parent, const char *name)
 	updateGeometry();
 
 	adjustSize();
-	setFixedSize(sizeHint());
+	setFixedSize(tqsizeHint());
 
 	UpdateDisplay(true);
 
@@ -457,7 +457,7 @@ actionCollection());
 
 void KCalculator::setupStatusbar(void)
 {
-	// Status bar contents
+	// tqStatus bar contents
 	statusBar()->insertFixedItem(" NORM ", 0, true);
 	statusBar()->setItemAlignment(0, AlignCenter);
 
@@ -471,12 +471,12 @@ void KCalculator::setupStatusbar(void)
 	statusBar()->setItemAlignment(3, AlignCenter);
 }
 
-TQWidget* KCalculator::setupNumericKeys(TQWidget *parent)
+TQWidget* KCalculator::setupNumericKeys(TQWidget *tqparent)
 {
 	Q_CHECK_PTR(mSmallPage);
 	Q_CHECK_PTR(mLargePage);
 
-	TQWidget *thisPage = new TQWidget(parent);
+	TQWidget *thisPage = new TQWidget(tqparent);
 
 	KCalcButton *tmp_pb;
 
@@ -608,28 +608,28 @@ TQWidget* KCalculator::setupNumericKeys(TQWidget *parent)
 	TQGridLayout *thisLayout = new TQGridLayout(thisPage, 5, 4, 0,
 						  mInternalSpacing);
 
-	// large button layout
+	// large button tqlayout
 	thisLayout->addWidget(pbEE, 0, 0);
 	thisLayout->addWidget(pbDivision, 0, 1);
 	thisLayout->addWidget(pbX, 0, 2);
 	thisLayout->addWidget(pbMinus, 0, 3);
 
-	thisLayout->addWidget(NumButtonGroup->find(7), 1, 0);
-	thisLayout->addWidget(NumButtonGroup->find(8), 1, 1);
-	thisLayout->addWidget(NumButtonGroup->find(9), 1, 2);
+	thisLayout->addWidget(NumButtonGroup->tqfind(7), 1, 0);
+	thisLayout->addWidget(NumButtonGroup->tqfind(8), 1, 1);
+	thisLayout->addWidget(NumButtonGroup->tqfind(9), 1, 2);
 	thisLayout->addMultiCellWidget(pbPlus, 1, 2, 3, 3);
 
-	thisLayout->addWidget(NumButtonGroup->find(4), 2, 0);
-	thisLayout->addWidget(NumButtonGroup->find(5), 2, 1);
-	thisLayout->addWidget(NumButtonGroup->find(6), 2, 2);
+	thisLayout->addWidget(NumButtonGroup->tqfind(4), 2, 0);
+	thisLayout->addWidget(NumButtonGroup->tqfind(5), 2, 1);
+	thisLayout->addWidget(NumButtonGroup->tqfind(6), 2, 2);
 	//thisLayout->addMultiCellWidget(pbPlus, 1, 2, 3, 3);
 
-	thisLayout->addWidget(NumButtonGroup->find(1), 3, 0);
-	thisLayout->addWidget(NumButtonGroup->find(2), 3, 1);
-	thisLayout->addWidget(NumButtonGroup->find(3), 3, 2);
+	thisLayout->addWidget(NumButtonGroup->tqfind(1), 3, 0);
+	thisLayout->addWidget(NumButtonGroup->tqfind(2), 3, 1);
+	thisLayout->addWidget(NumButtonGroup->tqfind(3), 3, 2);
 	thisLayout->addMultiCellWidget(pbEqual, 3, 4, 3, 3);
 
-	thisLayout->addMultiCellWidget(NumButtonGroup->find(0), 4, 4, 0, 1);
+	thisLayout->addMultiCellWidget(NumButtonGroup->tqfind(0), 4, 4, 0, 1);
 	thisLayout->addWidget(pbPeriod, 4, 2);
 	//thisLayout->addMultiCellWidget(pbEqual, 3, 4, 3, 3);
 
@@ -741,33 +741,33 @@ TQWidget* KCalculator::setupNumericKeys(TQWidget *parent)
 	return thisPage;
 }
 
-void KCalculator::setupLogicKeys(TQWidget *parent)
+void KCalculator::setupLogicKeys(TQWidget *tqparent)
 {
-	Q_CHECK_PTR(parent);
+	Q_CHECK_PTR(tqparent);
 
 	KCalcButton *tmp_pb;
 
-	tmp_pb = new KCalcButton("AND", parent, "AND-Button", i18n("Bitwise AND"));
+	tmp_pb = new KCalcButton("AND", tqparent, "AND-Button", i18n("Bitwise AND"));
 	pbLogic.insert("AND", tmp_pb);
 	tmp_pb->setAccel(Key_Ampersand);
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
 		tmp_pb, TQT_SLOT(slotSetAccelDisplayMode(bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotANDclicked(void)));
 
-	tmp_pb = new KCalcButton("OR", parent, "OR-Button", i18n("Bitwise OR"));
+	tmp_pb = new KCalcButton("OR", tqparent, "OR-Button", i18n("Bitwise OR"));
 	pbLogic.insert("OR", tmp_pb);
 	tmp_pb->setAccel(Key_Bar);
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
 		tmp_pb, TQT_SLOT(slotSetAccelDisplayMode(bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotORclicked(void)));
 
-	tmp_pb = new KCalcButton("XOR", parent, "XOR-Button", i18n("Bitwise XOR"));
+	tmp_pb = new KCalcButton("XOR", tqparent, "XOR-Button", i18n("Bitwise XOR"));
 	pbLogic.insert("XOR", tmp_pb);
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
 		tmp_pb, TQT_SLOT(slotSetAccelDisplayMode(bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotXORclicked(void)));
 
-	tmp_pb = new KCalcButton("Cmp", parent, "One-Complement-Button",
+	tmp_pb = new KCalcButton("Cmp", tqparent, "One-Complement-Button",
 					i18n("One's complement"));
 	pbLogic.insert("One-Complement", tmp_pb);
 	tmp_pb->setAccel(Key_AsciiTilde);
@@ -775,7 +775,7 @@ void KCalculator::setupLogicKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetAccelDisplayMode(bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotNegateclicked(void)));
 
-	tmp_pb = new KCalcButton("Lsh", parent, "LeftBitShift-Button",
+	tmp_pb = new KCalcButton("Lsh", tqparent, "LeftBitShift-Button",
 					i18n("Left bit shift"));
 	tmp_pb->setAccel(Key_Less);
 	pbLogic.insert("LeftShift", tmp_pb);
@@ -784,7 +784,7 @@ void KCalculator::setupLogicKeys(TQWidget *parent)
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)),
 		TQT_SLOT(slotLeftShiftclicked(void)));
 
-	tmp_pb = new KCalcButton("Rsh", parent, "RightBitShift-Button",
+	tmp_pb = new KCalcButton("Rsh", tqparent, "RightBitShift-Button",
 					i18n("Right bit shift"));
 	tmp_pb->setAccel(Key_Greater);
 	pbLogic.insert("RightShift", tmp_pb);
@@ -794,13 +794,13 @@ void KCalculator::setupLogicKeys(TQWidget *parent)
 		TQT_SLOT(slotRightShiftclicked(void)));
 }
 
-void KCalculator::setupScientificKeys(TQWidget *parent)
+void KCalculator::setupScientificKeys(TQWidget *tqparent)
 {
-	Q_CHECK_PTR(parent);
+	Q_CHECK_PTR(tqparent);
 
 	KCalcButton *tmp_pb;
 
-	tmp_pb = new KCalcButton("Hyp", parent, "Hyp-Button", i18n("Hyperbolic mode"));
+	tmp_pb = new KCalcButton("Hyp", tqparent, "Hyp-Button", i18n("Hyperbolic mode"));
 	pbScientific.insert("HypMode", tmp_pb);
 	tmp_pb->setAccel(Key_H);
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -808,7 +808,7 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 	connect(tmp_pb, TQT_SIGNAL(toggled(bool)), TQT_SLOT(slotHyptoggled(bool)));
 	tmp_pb->setToggleButton(true);
 
-	tmp_pb = new KCalcButton(parent, "Sin-Button");
+	tmp_pb = new KCalcButton(tqparent, "Sin-Button");
 	pbScientific.insert("Sine", tmp_pb);
 	tmp_pb->addMode(ModeNormal, "Sin", i18n("Sine"));
 	tmp_pb->addMode(ModeInverse, "Asin", i18n("Arc sine"));
@@ -822,7 +822,7 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotSinclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Cos-Button");
+	tmp_pb = new KCalcButton(tqparent, "Cos-Button");
 	pbScientific.insert("Cosine", tmp_pb);
 	tmp_pb->addMode(ModeNormal, "Cos", i18n("Cosine"));
 	tmp_pb->addMode(ModeInverse, "Acos", i18n("Arc cosine"));
@@ -836,7 +836,7 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotCosclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Tan-Button");
+	tmp_pb = new KCalcButton(tqparent, "Tan-Button");
 	pbScientific.insert("Tangent", tmp_pb);
 	tmp_pb->addMode(ModeNormal, "Tan", i18n("Tangent"));
 	tmp_pb->addMode(ModeInverse, "Atan", i18n("Arc tangent"));
@@ -850,7 +850,7 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)),TQT_SLOT(slotTanclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Ln-Button");
+	tmp_pb = new KCalcButton(tqparent, "Ln-Button");
 	tmp_pb->addMode(ModeNormal, "Ln", i18n("Natural log"));
 	tmp_pb->addMode(ModeInverse, "e<sup> x </sup>", i18n("Exponential function"),
 			true);
@@ -862,7 +862,7 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotLnclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Log-Button");
+	tmp_pb = new KCalcButton(tqparent, "Log-Button");
 	tmp_pb->addMode(ModeNormal, "Log", i18n("Logarithm to base 10"));
 	tmp_pb->addMode(ModeInverse, "10<sup> x </sup>", i18n("10 to the power of x"),
 			true);
@@ -876,13 +876,13 @@ void KCalculator::setupScientificKeys(TQWidget *parent)
 
 }
 
-void KCalculator::setupStatisticKeys(TQWidget *parent)
+void KCalculator::setupStatisticKeys(TQWidget *tqparent)
 {
-	Q_CHECK_PTR(parent);
+	Q_CHECK_PTR(tqparent);
 
 	KCalcButton *tmp_pb;
 
-	tmp_pb = new KCalcButton(parent, "Stat.NumData-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.NumData-Button");
 	tmp_pb->addMode(ModeNormal, "N", i18n("Number of data entered"));
 	tmp_pb->addMode(ModeInverse, TQString::fromUtf8("\xce\xa3")
 			+ "x", i18n("Sum of all data items"));
@@ -894,7 +894,7 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatNumclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Stat.Median-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.Median-Button");
 	tmp_pb->addMode(ModeNormal, "Med", i18n("Median"));
 	pbStat.insert("Median", tmp_pb);
         mStatButtonList.append(tmp_pb);
@@ -903,7 +903,7 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetAccelDisplayMode(bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatMedianclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Stat.Mean-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.Mean-Button");
 	tmp_pb->addMode(ModeNormal, "Mea", i18n("Mean"));
 	tmp_pb->addMode(ModeInverse, TQString::fromUtf8("\xce\xa3")
 			+ "x<sup>2</sup>",
@@ -916,7 +916,7 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatMeanclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Stat.StandardDeviation-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.StandardDeviation-Button");
 	tmp_pb->addMode(ModeNormal, TQString::fromUtf8("σ",-1) +  "<sub>N-1</sub>",
 			i18n("Sample standard deviation"), true);
 	tmp_pb->addMode(ModeInverse, TQString::fromUtf8("σ",-1) +  "<sub>N</sub>",
@@ -929,7 +929,7 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatStdDevclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Stat.DataInput-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.DataInput-Button");
 	tmp_pb->addMode(ModeNormal, "Dat", i18n("Enter data"));
 	tmp_pb->addMode(ModeInverse, "CDat", i18n("Delete last data item"));
 	pbStat.insert("InputData", tmp_pb);
@@ -940,7 +940,7 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatDataInputclicked(void)));
 
-	tmp_pb = new KCalcButton(parent, "Stat.ClearData-Button");
+	tmp_pb = new KCalcButton(tqparent, "Stat.ClearData-Button");
 	tmp_pb->addMode(ModeNormal, "CSt", i18n("Clear data store"));
 	pbStat.insert("ClearData", tmp_pb);
         mStatButtonList.append(tmp_pb);
@@ -949,16 +949,16 @@ void KCalculator::setupStatisticKeys(TQWidget *parent)
 	connect(tmp_pb, TQT_SIGNAL(clicked(void)), TQT_SLOT(slotStatClearDataclicked(void)));
 }
 
-void KCalculator::setupConstantsKeys(TQWidget *parent)
+void KCalculator::setupConstantsKeys(TQWidget *tqparent)
 {
-	Q_CHECK_PTR(parent);
+	Q_CHECK_PTR(tqparent);
 
 	ConstButtonGroup = new TQButtonGroup(0, "Const-Button-Group");
 	connect(ConstButtonGroup, TQT_SIGNAL(clicked(int)), TQT_SLOT(slotConstclicked(int)));
 
 
 	KCalcConstButton *tmp_pb;
-	tmp_pb = new KCalcConstButton(parent, 0, "C1");
+	tmp_pb = new KCalcConstButton(tqparent, 0, "C1");
 	tmp_pb->setAccel(ALT + Key_1);
 	pbConstant[0] = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -967,7 +967,7 @@ void KCalculator::setupConstantsKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	ConstButtonGroup->insert(tmp_pb, 0);
 
-	tmp_pb = new KCalcConstButton(parent, 1, "C2");
+	tmp_pb = new KCalcConstButton(tqparent, 1, "C2");
         tmp_pb->setAccel(ALT + Key_2);
 	pbConstant[1] = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -976,7 +976,7 @@ void KCalculator::setupConstantsKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	ConstButtonGroup->insert(tmp_pb, 1);
 
-	tmp_pb = new KCalcConstButton(parent, 2, "C3");
+	tmp_pb = new KCalcConstButton(tqparent, 2, "C3");
         tmp_pb->setAccel(ALT + Key_3);
 	pbConstant[2] = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -985,7 +985,7 @@ void KCalculator::setupConstantsKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	ConstButtonGroup->insert(tmp_pb, 2);
 
-	tmp_pb = new KCalcConstButton(parent, 3, "C4");
+	tmp_pb = new KCalcConstButton(tqparent, 3, "C4");
         tmp_pb->setAccel(ALT + Key_4);
 	pbConstant[3] = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -994,7 +994,7 @@ void KCalculator::setupConstantsKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	ConstButtonGroup->insert(tmp_pb, 3);
 
-	tmp_pb = new KCalcConstButton(parent, 4, "C5");
+	tmp_pb = new KCalcConstButton(tqparent, 4, "C5");
         tmp_pb->setAccel(ALT + Key_5);
 	pbConstant[4] = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -1003,7 +1003,7 @@ void KCalculator::setupConstantsKeys(TQWidget *parent)
 		tmp_pb, TQT_SLOT(slotSetMode(ButtonModeFlags,bool)));
 	ConstButtonGroup->insert(tmp_pb, 4);
 
-	tmp_pb = new KCalcConstButton(parent, 5, "C6");
+	tmp_pb = new KCalcConstButton(tqparent, 5, "C6");
         tmp_pb->setAccel(ALT + Key_6);
 	pbConstant[5]  = tmp_pb;
 	connect(this, TQT_SIGNAL(switchShowAccels(bool)),
@@ -1041,7 +1041,7 @@ void KCalculator::updateGeometry(void)
     s.setHeight(mSmallPage->fontMetrics().lineSpacing());
 
     // why this stupid cast!
-    l = const_cast<TQObjectList *>(mSmallPage->children());
+    l = const_cast<TQObjectList *>(mSmallPage->tqchildren());
 
     for(uint i=0; i < l->count(); i++)
     {
@@ -1050,7 +1050,7 @@ void KCalculator::updateGeometry(void)
         {
             TQWidget *tmp_widget = dynamic_cast<TQWidget *>(o);
             margin = TQApplication::style().
-                pixelMetric(TQStyle::PM_ButtonMargin, (tmp_widget))*2;
+                tqpixelMetric(TQStyle::PM_ButtonMargin, (tmp_widget))*2;
             tmp_widget->setFixedSize(s.width()+margin, s.height()+margin);
             //tmp_widget->setMinimumSize(s.width()+margin, s.height()+margin);
             tmp_widget->installEventFilter( this );
@@ -1059,13 +1059,13 @@ void KCalculator::updateGeometry(void)
     }
 
     // why this stupic cast !!
-    l = const_cast<TQObjectList*>(mLargePage->children());
+    l = const_cast<TQObjectList*>(mLargePage->tqchildren());
 
-    int h1 = (NumButtonGroup->find(0x0F))->minimumSize().height();
+    int h1 = (NumButtonGroup->tqfind(0x0F))->tqminimumSize().height();
     int h2 = static_cast<int>( (static_cast<float>(h1) + 4.0) / 5.0 );
     s.setWidth(mLargePage->fontMetrics().width("MMM") +
                TQApplication::style().
-               pixelMetric(TQStyle::PM_ButtonMargin, NumButtonGroup->find(0x0F))*2);
+               tqpixelMetric(TQStyle::PM_ButtonMargin, NumButtonGroup->tqfind(0x0F))*2);
     s.setHeight(h1 + h2);
 
     for(uint i = 0; i < l->count(); i++)
@@ -1086,13 +1086,13 @@ void KCalculator::updateGeometry(void)
 
 
 
-    l = (TQObjectList*)mNumericPage->children(); // silence please
+    l = (TQObjectList*)mNumericPage->tqchildren(); // silence please
 
-    h1 = (NumButtonGroup->find(0x0F))->minimumSize().height();
+    h1 = (NumButtonGroup->tqfind(0x0F))->tqminimumSize().height();
     h2 = (int)((((float)h1 + 4.0) / 5.0));
     s.setWidth(mLargePage->fontMetrics().width("MMM") +
                TQApplication::style().
-               pixelMetric(TQStyle::PM_ButtonMargin, NumButtonGroup->find(0x0F))*2);
+               tqpixelMetric(TQStyle::PM_ButtonMargin, NumButtonGroup->tqfind(0x0F))*2);
     s.setHeight(h1 + h2);
 
     for(uint i = 0; i < l->count(); i++)
@@ -1110,7 +1110,7 @@ void KCalculator::updateGeometry(void)
     // Set Buttons of double size
     TQSize t(s);
     t.setWidth(2*s.width());
-    NumButtonGroup->find(0x00)->setFixedSize(t);
+    NumButtonGroup->tqfind(0x00)->setFixedSize(t);
     t = s;
     t.setHeight(2*s.height());
     pbEqual->setFixedSize(t);
@@ -1152,11 +1152,11 @@ void KCalculator::slotBaseSelected(int base)
 
 	// Enable the buttons not available in this base
 	for (int i=0; i<current_base; i++)
-	  NumButtonGroup->find(i)->setEnabled (true);
+	  NumButtonGroup->tqfind(i)->setEnabled (true);
 
 	// Disable the buttons not available in this base
 	for (int i=current_base; i<16; i++)
-	  NumButtonGroup->find(i)->setEnabled (false);
+	  NumButtonGroup->tqfind(i)->setEnabled (false);
 
 	// Only enable the decimal point in decimal
 	pbPeriod->setEnabled(current_base == NB_DECIMAL);
@@ -1271,7 +1271,7 @@ void KCalculator::slotInvtoggled(bool flag)
 	else
 	{
 		statusBar()->changeItem("NORM", 0);
-		calc_display->setStatusText(0, TQString::null);
+		calc_display->setStatusText(0, TQString());
 	}
 }
 
@@ -1544,7 +1544,7 @@ void KCalculator::slotMCclicked(void)
 {
 	memory_num		= 0;
 	statusBar()->changeItem(" \xa0\xa0 ",3);
-	calc_display->setStatusText(3, TQString::null);
+	calc_display->setStatusText(3, TQString());
 	pbMemRecall->setDisabled(true);
 }
 
@@ -1951,7 +1951,7 @@ void KCalculator::slotStatshow(bool toggled)
 		pbStat["ClearData"]->hide();
 	}
 	adjustSize();
-	setFixedSize(sizeHint());
+	setFixedSize(tqsizeHint());
 	KCalcSettings::setShowStat(toggled);
 }
 
@@ -1983,10 +1983,10 @@ void KCalculator::slotScientificshow(bool toggled)
 		pbAngleChoose->hide();
 		if(statusBar()->hasItem(2))
 			statusBar()->removeItem(2);
-		calc_display->setStatusText(2, TQString::null);
+		calc_display->setStatusText(2, TQString());
 	}
 	adjustSize();
-	setFixedSize(sizeHint());
+	setFixedSize(tqsizeHint());
 	KCalcSettings::setShowScientific(toggled);
 }
 
@@ -2007,7 +2007,7 @@ void KCalculator::slotLogicshow(bool toggled)
 		resetBase();
 		BaseChooseGroup->show();
 		for (int i=10; i<16; i++)
-			(NumButtonGroup->find(i))->show();
+			(NumButtonGroup->tqfind(i))->show();
 	}
 	else
 	{
@@ -2022,12 +2022,12 @@ void KCalculator::slotLogicshow(bool toggled)
 		BaseChooseGroup->hide();
 		if(statusBar()->hasItem(1))
 			statusBar()->removeItem(1);
-		calc_display->setStatusText(1, TQString::null);
+		calc_display->setStatusText(1, TQString());
 		for (int i=10; i<16; i++)
-			(NumButtonGroup->find(i))->hide();
+			(NumButtonGroup->tqfind(i))->hide();
 	}
 	adjustSize();
-	setFixedSize(sizeHint());
+	setFixedSize(tqsizeHint());
 	KCalcSettings::setShowLogic(toggled);
 }
 
@@ -2053,7 +2053,7 @@ void KCalculator::slotConstantsShow(bool toggled)
 		pbConstant[5]->hide();
 	}
 	adjustSize();
-	setFixedSize(sizeHint());
+	setFixedSize(tqsizeHint());
 	KCalcSettings::setShowConstants(toggled);
 }
 
@@ -2104,12 +2104,12 @@ void KCalculator::updateSettings()
 	}
 	else
 	{
-		setCaption(TQString::null);
+		setCaption(TQString());
 	}
 	calc_display->changeSettings();
 
 	updateGeometry();
-	resize(minimumSize());
+	resize(tqminimumSize());
 
 	//
 	// 1999-10-31 Espen Sand: Don't ask me why ;)
@@ -2145,7 +2145,7 @@ void KCalculator::set_colors()
 	TQPalette numPal(KCalcSettings::numberButtonsColor(), bg);
 	for(int i=0; i<10; i++)
 	{
-		(NumButtonGroup->find(i))->setPalette(numPal);
+		(NumButtonGroup->tqfind(i))->setPalette(numPal);
 	}
 
 	TQPalette funcPal(KCalcSettings::functionButtonsColor(), bg);
@@ -2164,7 +2164,7 @@ void KCalculator::set_colors()
 	TQPalette hexPal(KCalcSettings::hexButtonsColor(), bg);
 	for(int i=10; i<16; i++)
 	{
-		(NumButtonGroup->find(i))->setPalette(hexPal);
+		(NumButtonGroup->tqfind(i))->setPalette(hexPal);
 	}
 
 	TQPalette memPal(KCalcSettings::memoryButtonsColor(), bg);
@@ -2218,26 +2218,26 @@ bool KCalculator::eventFilter(TQObject *o, TQEvent *e)
 			  // Was it hex-button or normal digit??
 			  if (num_but <10)
 			    for(int i=0; i<10; i++)
-			      (NumButtonGroup->find(i))->setPalette(pal);
+			      (NumButtonGroup->tqfind(i))->setPalette(pal);
 			  else
 			    for(int i=10; i<16; i++)
-			      (NumButtonGroup->find(i))->setPalette(pal);
+			      (NumButtonGroup->tqfind(i))->setPalette(pal);
 
 			  return true;
 			}
-			else if( mFunctionButtonList.findRef((KCalcButton*)o) != -1)
+			else if( mFunctionButtonList.tqfindRef((KCalcButton*)o) != -1)
 			{
 				list = &mFunctionButtonList;
 			}
-			else if( mStatButtonList.findRef((KCalcButton*)o) != -1)
+			else if( mStatButtonList.tqfindRef((KCalcButton*)o) != -1)
 			{
 				list = &mStatButtonList;
 			}
-			else if( mMemButtonList.findRef((KCalcButton*)o) != -1)
+			else if( mMemButtonList.tqfindRef((KCalcButton*)o) != -1)
 			{
 				list = &mMemButtonList;
 			}
-			else if( mOperationButtonList.findRef((KCalcButton*)o) != -1)
+			else if( mOperationButtonList.tqfindRef((KCalcButton*)o) != -1)
 			{
 				list = &mOperationButtonList;
 			}
@@ -2296,7 +2296,7 @@ extern "C" KDE_EXPORT int kdemain(int argc, char *argv[])
 
 	KCalculator *calc = new KCalculator;
 	app.setTopWidget(calc);
-	calc->setCaption(TQString::null);
+	calc->setCaption(TQString());
 	calc->show();
 
 	int exitCode = app.exec();
diff --git a/kcalc/kcalc.h b/kcalc/kcalc.h
index 87f389e..f135a3c 100644
--- a/kcalc/kcalc.h
+++ b/kcalc/kcalc.h
@@ -1,6 +1,6 @@
 /*
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
@@ -61,9 +61,10 @@ class Constants;
 class KCalculator : public KMainWindow
 {
     Q_OBJECT
+  TQ_OBJECT
 
 public:
-	KCalculator(TQWidget *parent = 0, const char *name = 0);
+	KCalculator(TQWidget *tqparent = 0, const char *name = 0);
 	~KCalculator();
 
 signals:
@@ -76,16 +77,16 @@ private:
 	void updateGeometry();
 	void setupMainActions(void);
 	void setupStatusbar(void);
-	TQWidget *setupNumericKeys(TQWidget *parent);
-	void setupLogicKeys(TQWidget *parent);
-	void setupScientificKeys(TQWidget *parent);
-	void setupStatisticKeys(TQWidget *parent);
-	void setupConstantsKeys(TQWidget *parent);
+	TQWidget *setupNumericKeys(TQWidget *tqparent);
+	void setupLogicKeys(TQWidget *tqparent);
+	void setupScientificKeys(TQWidget *tqparent);
+	void setupStatisticKeys(TQWidget *tqparent);
+	void setupConstantsKeys(TQWidget *tqparent);
 	void keyPressEvent(TQKeyEvent *e);
 	void keyReleaseEvent(TQKeyEvent *e);
 	void set_precision();
 	void set_style();
-	void resetBase(void) { (BaseChooseGroup->find(1))->animateClick();};
+	void resetBase(void) { (BaseChooseGroup->tqfind(1))->animateClick();};
 
 	void UpdateDisplay(bool get_amount_from_core = false,
 			   bool store_result_in_history = false);
diff --git a/kcalc/kcalc_button.cpp b/kcalc/kcalc_button.cpp
index 7472f92..0bde80d 100644
--- a/kcalc/kcalc_button.cpp
+++ b/kcalc/kcalc_button.cpp
@@ -30,16 +30,16 @@
 #include "kcalc_button.h"
 
 
-KCalcButton::KCalcButton(TQWidget * parent, const char * name)
-  : KPushButton(parent, name), _show_accel_mode(false),
+KCalcButton::KCalcButton(TQWidget * tqparent, const char * name)
+  : KPushButton(tqparent, name), _show_accel_mode(false),
     _mode_flags(ModeNormal)
 {
   setAutoDefault(false);
 }
 
-KCalcButton::KCalcButton(const TQString &label, TQWidget * parent,
+KCalcButton::KCalcButton(const TQString &label, TQWidget * tqparent,
 			 const char * name, const TQString &tooltip)
-  : KPushButton(label, parent, name), _show_accel_mode(false), _mode_flags(ModeNormal)
+  : KPushButton(label, tqparent, name), _show_accel_mode(false), _mode_flags(ModeNormal)
 {
   setAutoDefault(false);
   addMode(ModeNormal, label, tooltip);
@@ -47,7 +47,7 @@ KCalcButton::KCalcButton(const TQString &label, TQWidget * parent,
 
 void KCalcButton::addMode(ButtonModeFlags mode, TQString label, TQString tooltip, bool is_label_richtext)
 {
-  if (_mode.contains(mode)) _mode.remove(mode);
+  if (_mode.tqcontains(mode)) _mode.remove(mode);
 
   _mode[mode] = ButtonMode(label, tooltip, is_label_richtext);
 
@@ -67,7 +67,7 @@ void KCalcButton::slotSetMode(ButtonModeFlags mode, bool flag)
   	return; // nothing to do
   }
 
-  if (_mode.contains(new_mode)) {
+  if (_mode.tqcontains(new_mode)) {
     // save accel, because setting label erases accel
     TQKeySequence _accel = accel();
 
@@ -92,7 +92,7 @@ void KCalcButton::slotSetMode(ButtonModeFlags mode, bool flag)
 
 static TQString escape(TQString str)
 {
-  str.replace('&', "&&");
+  str.tqreplace('&', "&&");
   return str;
 }
 
@@ -118,7 +118,7 @@ void KCalcButton::paintLabel(TQPainter *paint)
 {
   if (_mode[_mode_flags].is_label_richtext) {
     TQSimpleRichText _text(_label, font());
-    _text.draw(paint, width()/2-_text.width()/2, 0, childrenRegion(), colorGroup());
+    _text.draw(paint, width()/2-_text.width()/2, 0, tqchildrenRegion(), tqcolorGroup());
   } else {
     KPushButton::drawButtonLabel(paint);
   }
@@ -128,7 +128,7 @@ void KCalcButton::drawButtonLabel(TQPainter *paint)
 {
   if (_show_accel_mode) {
     KPushButton::drawButtonLabel(paint);
-  } else if (_mode.contains(_mode_flags)) {
+  } else if (_mode.tqcontains(_mode_flags)) {
     paintLabel(paint);
   }
 }
@@ -159,7 +159,7 @@ void KSquareButton::drawButtonLabel(TQPainter *paint)
 {
   if (_show_accel_mode) {
     KPushButton::drawButtonLabel(paint);
-  } else if (_mode.contains(_mode_flags)) {
+  } else if (_mode.tqcontains(_mode_flags)) {
     paintLabel(paint);
   }
 }
diff --git a/kcalc/kcalc_button.h b/kcalc/kcalc_button.h
index f1a060f..60a7c30 100644
--- a/kcalc/kcalc_button.h
+++ b/kcalc/kcalc_button.h
@@ -1,6 +1,6 @@
 /*
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
@@ -61,10 +61,11 @@ public:
 class KCalcButton : public KPushButton
 {
 Q_OBJECT
+  TQ_OBJECT
 
 public:
- KCalcButton(TQWidget *parent, const char * name = 0); 
- KCalcButton(const TQString &label, TQWidget *parent, const char * name = 0,
+ KCalcButton(TQWidget *tqparent, const char * name = 0); 
+ KCalcButton(const TQString &label, TQWidget *tqparent, const char * name = 0,
 	     const TQString &tooltip = TQString());
 
  void addMode(ButtonModeFlags mode, TQString label, TQString tooltip, bool is_label_richtext = false);
@@ -89,13 +90,14 @@ protected:
 class KSquareButton : public KCalcButton
 {
 Q_OBJECT
+  TQ_OBJECT
 
 public:
-  KSquareButton(TQWidget *parent, const char * name = 0)
-    : KCalcButton(parent, name) { }; 
- KSquareButton(const TQString &label, TQWidget *parent, const char * name = 0,
+  KSquareButton(TQWidget *tqparent, const char * name = 0)
+    : KCalcButton(tqparent, name) { }; 
+ KSquareButton(const TQString &label, TQWidget *tqparent, const char * name = 0,
 	       const TQString &tooltip = TQString())
-   : KCalcButton(label, parent, name, tooltip) { };
+   : KCalcButton(label, tqparent, name, tooltip) { };
 
 protected:
  virtual void drawButtonLabel(TQPainter *paint);
diff --git a/kcalc/kcalc_const_button.cpp b/kcalc/kcalc_const_button.cpp
index 071bb71..a8eb989 100644
--- a/kcalc/kcalc_const_button.cpp
+++ b/kcalc/kcalc_const_button.cpp
@@ -31,8 +31,8 @@
 #include "kcalc_settings.h"
 
 
-KCalcConstButton::KCalcConstButton(TQWidget *parent, int but_num, const char * name)
-  : KCalcButton(parent, name), _button_num(but_num)
+KCalcConstButton::KCalcConstButton(TQWidget *tqparent, int but_num, const char * name)
+  : KCalcButton(tqparent, name), _button_num(but_num)
 {
   addMode(ModeInverse, "Store", i18n("Write display data into memory"));
   
@@ -40,9 +40,9 @@ KCalcConstButton::KCalcConstButton(TQWidget *parent, int but_num, const char * n
 }
 
 
-KCalcConstButton::KCalcConstButton(const TQString &label, TQWidget *parent, int but_num,
+KCalcConstButton::KCalcConstButton(const TQString &label, TQWidget *tqparent, int but_num,
                                    const char * name, const TQString &tooltip)
-  : KCalcButton(label, parent, name, tooltip), _button_num(but_num)
+  : KCalcButton(label, tqparent, name, tooltip), _button_num(but_num)
 {
   addMode(ModeInverse, "Store", i18n("Write display data into memory"));
   
diff --git a/kcalc/kcalc_const_button.h b/kcalc/kcalc_const_button.h
index 110df3c..916d7f6 100644
--- a/kcalc/kcalc_const_button.h
+++ b/kcalc/kcalc_const_button.h
@@ -1,6 +1,6 @@
 /*
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
@@ -31,12 +31,13 @@
 class KCalcConstButton : public KCalcButton
 {
 Q_OBJECT
+  TQ_OBJECT
 
   public:
 
-  KCalcConstButton(TQWidget *parent, int but_num, const char * name = 0);
+  KCalcConstButton(TQWidget *tqparent, int but_num, const char * name = 0);
   
-  KCalcConstButton(const TQString &label, TQWidget *parent, int but_num, const char * name = 0,
+  KCalcConstButton(const TQString &label, TQWidget *tqparent, int but_num, const char * name = 0,
 		   const TQString &tooltip = TQString());
 
   TQString constant(void) const;
diff --git a/kcalc/kcalc_const_menu.cpp b/kcalc/kcalc_const_menu.cpp
index f758c9f..7984daf 100644
--- a/kcalc/kcalc_const_menu.cpp
+++ b/kcalc/kcalc_const_menu.cpp
@@ -49,8 +49,8 @@ const struct science_constant KCalcConstMenu::Constants[] = {
   {"N_A", I18N_NOOP("Avogadro's Number"), "", "6.0221415e23", Thermodynamics}
 };
 
-KCalcConstMenu::KCalcConstMenu(TQWidget * parent, const char * name)
-  : TQPopupMenu(parent, name)
+KCalcConstMenu::KCalcConstMenu(TQWidget * tqparent, const char * name)
+  : TQPopupMenu(tqparent, name)
 {
   TQPopupMenu *math_menu = new TQPopupMenu(this, "mathematical constants");
   TQPopupMenu *em_menu = new TQPopupMenu(this, "electromagnetic constants");
diff --git a/kcalc/kcalc_const_menu.h b/kcalc/kcalc_const_menu.h
index 94c8412..331a6a1 100644
--- a/kcalc/kcalc_const_menu.h
+++ b/kcalc/kcalc_const_menu.h
@@ -1,6 +1,6 @@
 /*
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     Copyright (C) 2004 Klaus Niederkruger
 
@@ -36,12 +36,12 @@ struct science_constant{
   ConstantCategory category;
 };
 
-class KCalcConstMenu : public QPopupMenu
+class KCalcConstMenu : public TQPopupMenu
 {
-Q_OBJECT 
+TQ_OBJECT 
 
  public:
-  KCalcConstMenu(TQWidget * parent = 0, const char * name = 0);
+  KCalcConstMenu(TQWidget * tqparent = 0, const char * name = 0);
 
   static const struct science_constant Constants[];
 
diff --git a/kcalc/kcalc_core.cpp b/kcalc/kcalc_core.cpp
index 4270895..89a2438 100644
--- a/kcalc/kcalc_core.cpp
+++ b/kcalc/kcalc_core.cpp
@@ -1,6 +1,6 @@
 /*
     kCalculator, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     The stack engine contained in this file was take from
     Martin Bartlett's xfrmcalc
@@ -209,7 +209,7 @@ CalcEngine::CalcEngine()
 
 	struct sigaction fpe_trap;
 
-	sigemptyset(&fpe_trap.sa_mask);
+	sigemptyset(&fpe_trap.sa_tqmask);
 	fpe_trap.sa_handler = &fpe_handler;
 #ifdef SA_RESTART
 	fpe_trap.sa_flags = SA_RESTART;
diff --git a/kcalc/kcalc_core.h b/kcalc/kcalc_core.h
index fe818e9..f02d880 100644
--- a/kcalc/kcalc_core.h
+++ b/kcalc/kcalc_core.h
@@ -1,7 +1,7 @@
 /*
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
 
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
diff --git a/kcalc/kcalcdisplay.cpp b/kcalc/kcalcdisplay.cpp
index 1f90e03..fb0595e 100644
--- a/kcalc/kcalcdisplay.cpp
+++ b/kcalc/kcalcdisplay.cpp
@@ -2,7 +2,7 @@
     $Id$
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
     
     Copyright (C) 1996 Bernd Johannes Wuebben   
                        wuebben@math.cornell.edu
@@ -39,17 +39,17 @@
 #include "kcalcdisplay.moc"
 
 
-KCalcDisplay::KCalcDisplay(TQWidget *parent, const char *name)
-  :TQLabel(parent,name), _beep(false), _groupdigits(false), _button(0), _lit(false),
+KCalcDisplay::KCalcDisplay(TQWidget *tqparent, const char *name)
+  :TQLabel(tqparent,name), _beep(false), _groupdigits(false), _button(0), _lit(false),
    _num_base(NB_DECIMAL), _precision(9),
    _fixed_precision(-1), _display_amount(0),
    selection_timer(new TQTimer)
 {
 	setFrameStyle(TQFrame::WinPanel | TQFrame::Sunken);
-	setAlignment(AlignRight | AlignVCenter);
+	tqsetAlignment(AlignRight | AlignVCenter);
 	setFocus();
-	setFocusPolicy(TQWidget::StrongFocus);
-	setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Fixed, false);
+	setFocusPolicy(TQ_StrongFocus);
+	tqsetSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Fixed, false);
 
 	connect(this, TQT_SIGNAL(clicked()), this, TQT_SLOT(slotDisplaySelected()));
 
@@ -71,7 +71,7 @@ bool KCalcDisplay::sendEvent(Event const event)
 	case EventReset:
 		_display_amount = 0;
 		_str_int = "0";
-		_str_int_exp = TQString::null;
+		_str_int_exp = TQString();
 
 		_eestate = false;
 		_period = false;
@@ -105,13 +105,13 @@ void KCalcDisplay::slotCopy(void)
 	TQString txt = TQLabel::text();
 	if (_num_base == NB_HEX)
 		txt.prepend( "0x" );
-	(TQApplication::clipboard())->setText(txt, QClipboard::Clipboard);
-	(TQApplication::clipboard())->setText(txt, QClipboard::Selection);
+	(TQApplication::tqclipboard())->setText(txt, TQClipboard::Clipboard);
+	(TQApplication::tqclipboard())->setText(txt, TQClipboard::Selection);
 }
 
 void KCalcDisplay::slotPaste(bool bClipboard)
 {
-	TQString tmp_str = (TQApplication::clipboard())->text(bClipboard ? QClipboard::Clipboard : QClipboard::Selection);
+	TQString tmp_str = (TQApplication::tqclipboard())->text(bClipboard ? TQClipboard::Clipboard : TQClipboard::Selection);
 
 	if (tmp_str.isNull())
 	{
@@ -226,7 +226,7 @@ bool KCalcDisplay::setAmount(KNumber const & new_amount)
 	TQString display_str;
 
 	_str_int = "0";
-	_str_int_exp = TQString::null;
+	_str_int_exp = TQString();
 	_period = false;
 	_neg_sign = false;
 	_eestate = false;
@@ -243,7 +243,7 @@ bool KCalcDisplay::setAmount(KNumber const & new_amount)
 	{
 		_display_amount = new_amount;
 	
-		display_str = _display_amount.toQString(KCalcSettings::precision(), _fixed_precision);
+		display_str = _display_amount.toTQString(KCalcSettings::precision(), _fixed_precision);
 #if 0
 		else if (_display_amount > 1.0e+16)
 			display_str = TQCString().sprintf(PRINT_LONG_BIG, _precision + 1, _display_amount);
@@ -281,7 +281,7 @@ TQString KCalcDisplay::text() const
 {
 	if (_num_base != NB_DECIMAL)
 		return TQLabel::text();
-	TQString display_str = _display_amount.toQString(KCalcSettings::precision());
+	TQString display_str = _display_amount.toTQString(KCalcSettings::precision());
 
 	return display_str;
 	//	return TQCString().sprintf(PRINT_LONG_BIG, 40, _display_amount);
@@ -584,7 +584,7 @@ void KCalcDisplay::drawContents(TQPainter *p)
 	// draw the status texts using half of the normal
 	// font size but not smaller than 7pt
 	TQFont f(font());
-	f.setPointSize(QMAX((f.pointSize() / 2), 7));
+	f.setPointSize(TQMAX((f.pointSize() / 2), 7));
 	p->setFont(f);
 	TQFontMetrics fm(f);
 	uint w = fm.width("_____");
@@ -596,13 +596,13 @@ void KCalcDisplay::drawContents(TQPainter *p)
 	}
 }
 
-// Return the QLabel's normal size hint vertically expanded
+// Return the TQLabel's normal size hint vertically expanded
 // by half the font height to make room for the status texts
-TQSize KCalcDisplay::sizeHint() const
+TQSize KCalcDisplay::tqsizeHint() const
 {
 	TQFont f(font());
-	f.setPointSize(QMAX((f.pointSize() / 2), 7));
+	f.setPointSize(TQMAX((f.pointSize() / 2), 7));
 	TQFontMetrics fm(f);
-	return TQLabel::sizeHint() + TQSize(0, fm.height());
+	return TQLabel::tqsizeHint() + TQSize(0, fm.height());
 }
 
diff --git a/kcalc/kcalcdisplay.h b/kcalc/kcalcdisplay.h
index 6f7233c..4c0371c 100644
--- a/kcalc/kcalcdisplay.h
+++ b/kcalc/kcalcdisplay.h
@@ -76,12 +76,13 @@ enum NumBase {
 };
 
 
-class KCalcDisplay : public QLabel
+class KCalcDisplay : public TQLabel
 {
 Q_OBJECT
+  TQ_OBJECT
 
 public:
-	KCalcDisplay(TQWidget *parent=0, const char *name=0);
+	KCalcDisplay(TQWidget *tqparent=0, const char *name=0);
 	~KCalcDisplay();
 
 protected:
@@ -109,7 +110,7 @@ public:
 	TQString text() const;
 	bool updateDisplay(void);
 	void setStatusText(uint i, const TQString& text);
-	virtual TQSize sizeHint() const;
+	virtual TQSize tqsizeHint() const;
 private:
 	bool _beep;
 	bool _groupdigits;
diff --git a/kcalc/kcalctype.h b/kcalc/kcalctype.h
index 8223e87..6c69aec 100644
--- a/kcalc/kcalctype.h
+++ b/kcalc/kcalctype.h
@@ -2,7 +2,7 @@
     $Id$
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
    
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
diff --git a/kcalc/knumber/knumber.cpp b/kcalc/knumber/knumber.cpp
index 80bae1f..123fee7 100644
--- a/kcalc/knumber/knumber.cpp
+++ b/kcalc/knumber/knumber.cpp
@@ -276,7 +276,7 @@ static void _inc_by_one(TQString &str, int position)
 // Cut off if more digits in fractional part than 'precision'
 static void _round(TQString &str, int precision)
 {
-  int decimalSymbolPos = str.find('.');
+  int decimalSymbolPos = str.tqfind('.');
 
   if (decimalSymbolPos == -1)
     if (precision == 0)  return;
@@ -312,7 +312,7 @@ static void _round(TQString &str, int precision)
       break;
     }
 
-  decimalSymbolPos = str.find('.');
+  decimalSymbolPos = str.tqfind('.');
   str.truncate(decimalSymbolPos + precision + 1);
 
   // if precision == 0 delete also '.'
@@ -349,7 +349,7 @@ static TQString roundNumber(const TQString &numStr, int precision)
 }
 
 
-TQString const KNumber::toQString(int width, int prec) const
+TQString const KNumber::toTQString(int width, int prec) const
 {
   TQString tmp_str;
 
@@ -360,7 +360,7 @@ TQString const KNumber::toQString(int width, int prec) const
     if (width > 0) { //result needs to be cut-off
       bool tmp_bool = _fraction_input; // stupid work-around
       _fraction_input = false;
-      tmp_str = (KNumber("1.0")*(*this)).toQString(width, -1);
+      tmp_str = (KNumber("1.0")*(*this)).toTQString(width, -1);
       _fraction_input = tmp_bool;
     } else
       tmp_str = TQString(_num->ascii());
@@ -369,7 +369,7 @@ TQString const KNumber::toQString(int width, int prec) const
     if (_float_output) {
       bool tmp_bool = _fraction_input; // stupid work-around
       _fraction_input = false;
-      tmp_str = (KNumber("1.0")*(*this)).toQString(width, -1);
+      tmp_str = (KNumber("1.0")*(*this)).toTQString(width, -1);
       _fraction_input = tmp_bool;
     } else { // _float_output == false
       if(_splitoffinteger_output) {
@@ -378,9 +378,9 @@ TQString const KNumber::toQString(int width, int prec) const
 	if (int_part == Zero)
 	  tmp_str = TQString(_num->ascii());
 	else if (int_part < Zero)
-	  tmp_str = int_part.toQString() + " " + (int_part - *this)._num->ascii();
+	  tmp_str = int_part.toTQString() + " " + (int_part - *this)._num->ascii();
 	else
-	  tmp_str = int_part.toQString() + " " + (*this - int_part)._num->ascii();
+	  tmp_str = int_part.toTQString() + " " + (*this - int_part)._num->ascii();
       } else
 	tmp_str = TQString(_num->ascii());
 
@@ -388,7 +388,7 @@ TQString const KNumber::toQString(int width, int prec) const
 	//result needs to be cut-off
 	bool tmp_bool = _fraction_input; // stupid work-around
 	_fraction_input = false;
-	tmp_str = (KNumber("1.0")*(*this)).toQString(width, -1);
+	tmp_str = (KNumber("1.0")*(*this)).toTQString(width, -1);
 	_fraction_input = tmp_bool;
       }
     }
diff --git a/kcalc/knumber/knumber.h b/kcalc/knumber/knumber.h
index 02fce32..2ca3b5c 100644
--- a/kcalc/knumber/knumber.h
+++ b/kcalc/knumber/knumber.h
@@ -36,8 +36,8 @@ class TQString;
   * KNumber is based on the GMP (GNU Multiprecision) library and
   * provides transparent support to integer, fractional and floating
   * point number. It contains rudimentary error handling, and also
-  * includes methods for converting the numbers to QStrings for
-  * output, and to read QStrings to obtain a KNumber.
+  * includes methods for converting the numbers to TQStrings for
+  * output, and to read TQStrings to obtain a KNumber.
   *
   * The different types of numbers that can be represented by objects
   * of this class will be described below:
@@ -130,7 +130,7 @@ class KDE_EXPORT KNumber
   NumType type(void) const;
 
   /**
-   * Set whether the output of numbers (with KNumber::toQString)
+   * Set whether the output of numbers (with KNumber::toTQString)
    * should happen as floating point numbers or not. This method has
    * in fact only an effect on numbers of type @p
    * NumType::FractionType, which can be either displayed as fractions
@@ -179,7 +179,7 @@ class KDE_EXPORT KNumber
    * is ignored.
    *
    */
-  TQString const toQString(int width = -1, int prec = -1) const;
+  TQString const toTQString(int width = -1, int prec = -1) const;
   
   /**
    * Compute the absolute value, i.e. @p x.abs() returns the value
diff --git a/kcalc/knumber/knumber_priv.cpp b/kcalc/knumber/knumber_priv.cpp
index 56de7d3..8f69a5d 100644
--- a/kcalc/knumber/knumber_priv.cpp
+++ b/kcalc/knumber/knumber_priv.cpp
@@ -190,7 +190,7 @@ TQString const _knumerror::ascii(int prec) const
   case MinusInfinity:
     return TQString("-inf");
   default:
-    return TQString::null;
+    return TQString();
   }
 }
 
diff --git a/kcalc/knumber/tests/knumbertest.cpp b/kcalc/knumber/tests/knumbertest.cpp
index e34d94d..0d45355 100644
--- a/kcalc/knumber/tests/knumbertest.cpp
+++ b/kcalc/knumber/tests/knumbertest.cpp
@@ -32,13 +32,13 @@ void checkResult(TQString const &string, KNumber const & result,
 {
   std::cout << "Testing result of: " << string.ascii() <<
     " should give " << desired_string.ascii() << " and gives " <<
-    result.toQString(8).ascii() << "....\n";
+    result.toTQString(8).ascii() << "....\n";
   std::cout << "The type of the result should be " <<
     numtypeToString(desired).ascii() << " and gives " <<
     numtypeToString(result.type()).ascii() << "....  ";
 
   if (result.type() == desired  &&
-      result.toQString(8) == desired_string) {
+      result.toTQString(8) == desired_string) {
     std::cout << "OK\n";
     return;
   }
diff --git a/kcalc/stats.cpp b/kcalc/stats.cpp
index 45da5c3..57b3d55 100644
--- a/kcalc/stats.cpp
+++ b/kcalc/stats.cpp
@@ -2,7 +2,7 @@
     $Id$
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
    
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu
diff --git a/kcalc/stats.h b/kcalc/stats.h
index aba11f4..e8d1037 100644
--- a/kcalc/stats.h
+++ b/kcalc/stats.h
@@ -2,7 +2,7 @@
     $Id$
 
     KCalc, a scientific calculator for the X window system using the
-    Qt widget libraries, available at no cost at http://www.troll.no
+    TQt widget libraries, available at no cost at http://www.troll.no
    
     Copyright (C) 1996 Bernd Johannes Wuebben
                        wuebben@math.cornell.edu