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<h2><span class="refentrytitle">Using GTK+ on Windows</span></h2>
<p>Using GTK+ on Windows —
Windows-specific aspects of using GTK+
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<div class="refsect1">
<a name="id-1.2.7.3"></a><h2>Using GTK+ on Windows</h2>
<p>
The Windows port of GTK+ is an implementation of GDK (and therefore GTK+)
on top of the Win32 API.
</p>
<div class="refsect2">
<a name="win32-cmdline"></a><h3>Windows-specific commandline options</h3>
<p>
The Windows GDK backend can be influenced with some
additional command line arguments.
</p>
<p><b><code class="systemitem">--sync</code>. </b>
Don't batch GDI requests. This might be a marginally useful option for
debugging.
</p>
<p><b><code class="systemitem">--no-wintab</code>,
<code class="systemitem">--ignore-wintab</code>. </b>
Don't use the Wintab API for tablet support.
</p>
<p><b><code class="systemitem">--use-wintab</code>. </b>
Use the Wintab API for tablet support. This is the default.
</p>
<p><b><code class="systemitem">--max-colors <em class="replaceable"><code>number</code></em></code>. </b>
In 256 color mode, restrict the size of the color palette to
the specified number of colors. This option is obsolete.
</p>
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<hr>
<div class="refsect2">
<a name="win32-envar"></a><h3>Windows-specific environment variables</h3>
<p>
The Win32 GDK backend can be influenced with some
additional environment variables.
</p>
<p><b><code class="envar">GDK_IGNORE_WINTAB</code>. </b>
If this variable is set, GTK+ doesn't use
the Wintab API for tablet support.
</p>
<p><b><code class="envar">GDK_USE_WINTAB</code>. </b>
If this variable is set, GTK+ uses the Wintab API for
tablet support. This is the default.
</p>
<p><b><code class="envar">GDK_WIN32_MAX_COLORS</code>. </b>
Specifies the size of the color palette used
in 256 color mode.
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