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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/emb-running.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
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| -rw-r--r-- | doc/html/emb-running.html | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/doc/html/emb-running.html b/doc/html/emb-running.html new file mode 100644 index 0000000..fae839b --- /dev/null +++ b/doc/html/emb-running.html @@ -0,0 +1,138 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> +<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/qws.doc:337 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>Running Qt/Embedded applications</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 Classes</font></a> + | <a href="mainclasses.html"> +<font color="#004faf">Main Classes</font></a> + | <a href="annotated.html"> +<font color="#004faf">Annotated</font></a> + | <a href="groups.html"> +<font color="#004faf">Grouped 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>Running Qt/Embedded applications</h1> + + +<p> A Qt/Embedded application requires a master application to be running +or to be a master application itself. The master application is +primarily responsible for managing top-level window regions, and +pointer and keyboard input. +<p> Any Qt/Embedded application can be a master application by +constructing the <a href="qapplication.html">QApplication</a> object with the +<em>QApplication::GuiServer</em> type, or by being run with the <em>-qws</em> +command line option. +<p> This document assumes you have the Linux framebuffer configured correctly +and no master process is running. If you do not have a working Linux +framebuffer you can use the +<a href="emb-qvfb.html">Qt/Embedded virtual framebuffer</a>, or you can +run Qt/Embedded as a <a href="emb-vnc.html">VNC server</a>. +<p> Change to a Linux console and select an example to run, e.g. <tt>examples/widgets</tt>. Make sure $QTDIR is set to the directory where you +installed Qt/Embedded and add the $QTDIR/lib directory to +$LD_LIBRARY_PATH, e.g.: +<pre> +export QTDIR=$HOME/qt-VERSION +export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH +</pre> + +<p> Run the application with the <em>-qws</em> option: +<p> <pre> +cd $QTDIR/examples/widgets +./widgets -qws +</pre> + +<p> You should see the <tt>widgets</tt> example appear. If your mouse doesn't +work correctly you must specify the type of mouse to use. You can +exit the master application at any time using +<b>Ctrl+Alt+Backspace</b>. +<p> If you wish to run additional applications you should run them as clients +i.e. without the <em>-qws</em> option. +<p> <h2> Displays +</h2> +<a name="1"></a><p> Qt/Embedded allows multiple displays to be used simultaneously by running +multiple Qt/Embedded master processes. This is achieved using the -display +command line parameter or the $QWS_DISPLAY environment variable. +<p> The -display parameter's syntax is: +<pre> + [gfx driver][:driver specific options][:display number] +</pre> + +For example, if you want to use the mach64 driver on fb1 as display 2: +<pre> + $ ./launcher -display Mach64:/dev/fb1:2 +</pre> + +<p> To try this functionality you can do the following: +<ol type=1> +<li> Change to VC 1 (virtual console one) and run the launcher: +<p> <pre> + $ cd examples/launcher + $ ./launcher +</pre> + +<p> <li> Switch to VC 2 and run another one: +<p> <pre> + $ cd examples/launcher + $ ./launcher -display :1 +</pre> + +<p> Another launcher will be started. Start an application in this launcher. +<p> <li> Press <b>Ctrl+Alt+F1</b> - back to display 0. You can also start +additional applications on a particular display by specifying the +display id. Change to VC 3: +<p> <pre> + $ cd examples/widgets + $ ./widgets -display :1 +</pre> + +<p> will display the widgets example on dislpay :1 (VC 2). +</ol> +<p> Only the master process needs to specify the driver/device part +explicitly. The clients get the information they need from the master +when they connect. So once you have a master server running using a +particular driver, you can just use "client -display :n" to use +display n. +<p> <h2> Mouse Input +</h2> +<a name="2"></a><p> Qt/Embedded attempts to autodetect a mouse by default. The supported +protocols are MouseMan, Microsoft, IntelliMouse and +some other devices specific to certain hardware (e.g. Vr touch panel). +To specify the mouse to use set the <tt>$QWS_MOUSE_PROTO</tt> environment +variable, e.g.: +<pre> +export QWS_MOUSE_PROTO=IntelliMouse +</pre> + +<p> The mouse autodetection opens the serial devices and psaux which +may cause conflicts with other programs using those devices. If +this is the case then specify the mouse driver protocol and device +explicitly. +<p> <p>See also <a href="emb-pointer.html">Qt/Embedded Pointer Handling</a>. + +<p> +<!-- eof --> +<p><address><hr><div align=center> +<table width=100% cellspacing=0 border=0><tr> +<td>Copyright © 2007 +<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a> +<td align=right><div align=right>Qt 3.3.8</div> +</table></div></address></body> +</html> |