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-<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQt/Embedded Virtual Framebuffer</h1>
-
-
-<p> The virtual framebuffer allows TQt/Embedded programs to be developed on
-a desktop machine, without switching between consoles and X11.
-<p> The virtual framebuffer is located in <tt>$TQTDIR/tools/tqvfb</tt>.
-<p> <h2> Using the Virtual Framebuffer
-</h2>
-<a name="1"></a><p> <ol type=1>
-<li> Configure TQt/Embedded with the <tt>-tqvfb</tt> argument and compile the library:
-<pre>
- ./configure -tqvfb
- make
- </pre>
-
-<li> Compile <tt>tqvfb</tt> as a normal TQt/X11 application and run it. Do <em>not</em>
-compile it as a TQt/Embedded application.
-<li> Start a TQt/Embedded master application (i.e., construct
-<a href="ntqapplication.html">TQApplication</a> with the TQApplication::GuiServer flag or use the <tt>-qws</tt> command line parameter). You can specify to the server that
-you wish to use the virtual framebuffer driver, e.g.:
-<pre>
- masterapp -qws -display TQVFb:0
- </pre>
-
-<li> TQt/Embedded will autodetect tqvfb, so you can omit the <tt>-display</tt>
-command line parameter if you know that tqvfb is running, and that
-the TQt/Embedded library supports tqvfb. (If this is not the case,
-TQt/Embedded will write to the real framebuffer, and your X11
-display will be corrupted.)
-<p> </ol>
-<p> <tt>tqvfb</tt> supports the following command line options:
-<p> <center><table cellpadding="4" cellspacing="2" border="0">
-<tr bgcolor="#a2c511"> <th valign="top">Option <th valign="top">Meaning
-<tr bgcolor="#f0f0f0">
-<td valign="top"><tt>-width</tt> <em>width</em>
-<td valign="top">the width of the virtual framebuffer (default: 240).
-<tr bgcolor="#d0d0d0">
-<td valign="top"><tt>-height</tt> <em>height</em>
-<td valign="top">the height of the virtual framebuffer (default: 320).
-<tr bgcolor="#f0f0f0">
-<td valign="top"><tt>-depth</tt> <em>depth</em>
-<td valign="top">the depth of the virtual framebuffer (1, 8 or 32; default: 8).
-<tr bgcolor="#d0d0d0">
-<td valign="top"><tt>-nocursor</tt>
-<td valign="top">do not display the X11 cursor in the framebuffer window.
-<tr bgcolor="#f0f0f0">
-<td valign="top"><tt>-qwsdisplay</tt> <em>:id</em>
-<td valign="top">the TQt/Embedded display id to provide (default: :0).
-</table></center>
-<p> <h2> Virtual Framebuffer Design
-</h2>
-<a name="2"></a><p> The virtual framebuffer emulates a framebuffer using a shared memory region
-(the virtual frame buffer) and a utility to display the framebuffer in a
-window (<tt>tqvfb</tt>). The regions of the display that have changed are updated
-periodically, so you will see discrete snapshots of the framebuffer rather
-than each individual drawing operation. For this reason drawing problems
-such as flickering may not be apparent until the program is run using a real
-framebuffer.
-<p> The target refresh rate can be set via the <b>View|Refresh Rate</b>
-menu item. This will cause <tt>tqvfb</tt> to check for updated regions more
-frequently. The rate is a target only. If little drawing is being
-done, the framebuffer will not show any updates between drawing
-events. If an application is displaying an animation the updates will
-be frequent, then the application and <tt>tqvfb</tt> will compete for
-processor time.
-<p> Mouse and keyboard events are passed to the TQt/Embedded master process via
-named pipes.
-<p> The virtual framebuffer is a development tool only. No security issues have
-been considered in the virtual framebuffer design. It should be avoided
-in a production environment; do not configure production libraries with <tt>-tqvfb</tt>.
-<p>
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-<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>
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