ic</span> <span class="keywordtype">void</span> error_callback(<span class="keywordtype">int</span> error, <span class="keyword">const</span> <span class="keywordtype">char</span>* description)</div>
<div class="line">{</div>
<div class="line">    fputs(description, stderr);</div>
<div class="line">}</div>
<div class="line"></div>
<div class="line"><span class="keyword">static</span> <span class="keywordtype">void</span> key_callback(<a class="code" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f324