summaryrefslogtreecommitdiffstats
path: root/doc/html/tqimagedrag.html
blob: bd469a51ee3d939d73b146f415a0451312cdd10b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>TQImageDrag Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
 <a href="index.html">
<font color="#004faf">Home</font></a>
 | <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
 | <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQImageDrag Class Reference</h1>

<p>The TQImageDrag class provides a drag and drop object for
transferring images.
<a href="#details">More...</a>
<p><tt>#include &lt;<a href="tqdragobject-h.html">tqdragobject.h</a>&gt;</tt>
<p>Inherits <a href="tqdragobject.html">TQDragObject</a>.
<p><a href="tqimagedrag-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#TQImageDrag"><b>TQImageDrag</b></a> ( TQImage&nbsp;image, TQWidget&nbsp;*&nbsp;dragSource = 0, const&nbsp;char&nbsp;*&nbsp;name = 0 )</li>
<li class=fn><a href="#TQImageDrag-2"><b>TQImageDrag</b></a> ( TQWidget&nbsp;*&nbsp;dragSource = 0, const&nbsp;char&nbsp;*&nbsp;name = 0 )</li>
<li class=fn><a href="#~TQImageDrag"><b>~TQImageDrag</b></a> ()</li>
<li class=fn>virtual void <a href="#setImage"><b>setImage</b></a> ( TQImage&nbsp;image )</li>
</ul>
<h2>Static Public Members</h2>
<ul>
<li class=fn>bool <a href="#canDecode"><b>canDecode</b></a> ( const&nbsp;TQMimeSource&nbsp;*&nbsp;e )</li>
<li class=fn>bool <a href="#decode"><b>decode</b></a> ( const&nbsp;TQMimeSource&nbsp;*&nbsp;e, TQImage&nbsp;&amp;&nbsp;img )</li>
<li class=fn>bool <a href="#decode-2"><b>decode</b></a> ( const&nbsp;TQMimeSource&nbsp;*&nbsp;e, TQPixmap&nbsp;&amp;&nbsp;pm )</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>


<p> The TQImageDrag class provides a drag and drop object for
transferring images.
<p> 
<p> Images are offered to the receiving application in multiple
formats, determined by TQt's <a href="tqimage.html#outputFormats">output
    formats</a>.
<p> For more information about drag and drop, see the <a href="tqdragobject.html">TQDragObject</a>
class and the <a href="dnd.html">drag and drop documentation</a>.
<p>See also <a href="draganddrop.html">Drag And Drop Classes</a>.

<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="TQImageDrag"></a>TQImageDrag::TQImageDrag ( <a href="tqimage.html">TQImage</a>&nbsp;image, <a href="tqwidget.html">TQWidget</a>&nbsp;*&nbsp;dragSource = 0, const&nbsp;char&nbsp;*&nbsp;name = 0 )
</h3>
Constructs an image drag object and sets its data to <em>image</em>. <em>dragSource</em> must be the drag source; <em>name</em> is the object name.

<h3 class=fn><a name="TQImageDrag-2"></a>TQImageDrag::TQImageDrag ( <a href="tqwidget.html">TQWidget</a>&nbsp;*&nbsp;dragSource = 0, const&nbsp;char&nbsp;*&nbsp;name = 0 )
</h3>
Constructs a default image drag object. <em>dragSource</em> must be the
drag source; <em>name</em> is the object name.

<h3 class=fn><a name="~TQImageDrag"></a>TQImageDrag::~TQImageDrag ()
</h3>
Destroys the image drag object and frees up all allocated
resources.

<h3 class=fn>bool <a name="canDecode"></a>TQImageDrag::canDecode ( const&nbsp;<a href="tqmimesource.html">TQMimeSource</a>&nbsp;*&nbsp;e )<tt> [static]</tt>
</h3>
Returns TRUE if the information in mime source <em>e</em> can be decoded
into an image; otherwise returns FALSE.
<p> <p>See also <a href="#decode">decode</a>().

<p>Example: <a href="desktop-example.html#x1731">desktop/desktop.cpp</a>.
<h3 class=fn>bool <a name="decode"></a>TQImageDrag::decode ( const&nbsp;<a href="tqmimesource.html">TQMimeSource</a>&nbsp;*&nbsp;e, <a href="tqimage.html">TQImage</a>&nbsp;&amp;&nbsp;img )<tt> [static]</tt>
</h3>
Attempts to decode the dropped information in mime source <em>e</em>
into <em>img</em>. Returns TRUE if successful; otherwise returns FALSE.
<p> <p>See also <a href="#canDecode">canDecode</a>().

<p>Example: <a href="desktop-example.html#x1732">desktop/desktop.cpp</a>.
<h3 class=fn>bool <a name="decode-2"></a>TQImageDrag::decode ( const&nbsp;<a href="tqmimesource.html">TQMimeSource</a>&nbsp;*&nbsp;e, <a href="tqpixmap.html">TQPixmap</a>&nbsp;&amp;&nbsp;pm )<tt> [static]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Attempts to decode the dropped information in mime source <em>e</em>
into pixmap <em>pm</em>. Returns TRUE if successful; otherwise returns
FALSE.
<p> This is a convenience function that converts to a <a href="tqpixmap.html">TQPixmap</a> via a
<a href="tqimage.html">TQImage</a>.
<p> <p>See also <a href="#canDecode">canDecode</a>().

<h3 class=fn>void <a name="setImage"></a>TQImageDrag::setImage ( <a href="tqimage.html">TQImage</a>&nbsp;image )<tt> [virtual]</tt>
</h3>
Sets the image to be dragged to <em>image</em>. You will need to call
this if you did not pass the image during construction.

<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">TQt toolkit</a>.
Copyright &copy; 1995-2007
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>TQt 3.3.8</div>
</table></div></address></body>
</html>