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<title>Graphics/Gloss/Internals/Interface/Common/Exit.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK hide #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE PatternGuards, RankNTypes #-}</span>
<a name="line-3"></a>
<a name="line-4"></a><span class='hs-comment'>-- | Callback for exiting the program.</span>
<a name="line-5"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Common</span><span class='hs-varop'>.</span><span class='hs-conid'>Exit</span>
<a name="line-6"></a> <span class='hs-layout'>(</span><span class='hs-varid'>callback_exit</span><span class='hs-layout'>)</span>
<a name="line-7"></a><span class='hs-keyword'>where</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>Gloss</span><span class='hs-varop'>.</span><span class='hs-conid'>Internals</span><span class='hs-varop'>.</span><span class='hs-conid'>Interface</span><span class='hs-varop'>.</span><span class='hs-conid'>Backend</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-9"></a>
<a name="line-10"></a><a name="callback_exit"></a><span class='hs-definition'>callback_exit</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Callback</span>
<a name="line-11"></a><span class='hs-definition'>callback_exit</span> <span class='hs-varid'>stateRef</span>
<a name="line-12"></a> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>KeyMouse</span> <span class='hs-layout'>(</span><span class='hs-varid'>keyMouse_exit</span> <span class='hs-varid'>stateRef</span><span class='hs-layout'>)</span>
<a name="line-13"></a>
<a name="line-14"></a><a name="keyMouse_exit"></a><span class='hs-definition'>keyMouse_exit</span> <span class='hs-keyglyph'>::</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>KeyboardMouseCallback</span>
<a name="line-15"></a><span class='hs-definition'>keyMouse_exit</span>
<a name="line-16"></a> <span class='hs-keyword'>_</span>
<a name="line-17"></a> <span class='hs-varid'>backend</span>
<a name="line-18"></a> <span class='hs-varid'>key</span> <span class='hs-varid'>keyState</span> <span class='hs-keyword'>_</span>
<a name="line-19"></a> <span class='hs-keyword'>_</span>
<a name="line-20"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>key</span> <span class='hs-varop'>==</span> <span class='hs-conid'>SpecialKey</span> <span class='hs-conid'>KeyEsc</span>
<a name="line-21"></a> <span class='hs-layout'>,</span> <span class='hs-varid'>keyState</span> <span class='hs-varop'>==</span> <span class='hs-conid'>Down</span>
<a name="line-22"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>exitBackend</span> <span class='hs-varid'>backend</span>
<a name="line-23"></a>
<a name="line-24"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span>
<a name="line-25"></a> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
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