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lib64caca-devel-0.99-0.beta18.13.1.mga6.x86_64.rpm

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<a href="#func-members">Functions</a>  </div>
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<div class="title">libcaca event handling</div>  </div>
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Functions</h2></td></tr>
<tr class="memitem:ga98e74dedbe1629c0fc9460761696e050"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga98e74dedbe1629c0fc9460761696e050">caca_get_event</a> (<a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> *, int, <a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> *, int)</td></tr>
<tr class="memdesc:ga98e74dedbe1629c0fc9460761696e050"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the next mouse or keyboard input event.  <a href="#ga98e74dedbe1629c0fc9460761696e050">More...</a><br /></td></tr>
<tr class="separator:ga98e74dedbe1629c0fc9460761696e050"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf01ff2ff5f63e38eed2052b53181da2d"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gaf01ff2ff5f63e38eed2052b53181da2d">caca_get_mouse_x</a> (<a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> const *)</td></tr>
<tr class="memdesc:gaf01ff2ff5f63e38eed2052b53181da2d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the X mouse coordinate.  <a href="#gaf01ff2ff5f63e38eed2052b53181da2d">More...</a><br /></td></tr>
<tr class="separator:gaf01ff2ff5f63e38eed2052b53181da2d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac3310eaf44cc95e46be5c3e9a8a6818e"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gac3310eaf44cc95e46be5c3e9a8a6818e">caca_get_mouse_y</a> (<a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> const *)</td></tr>
<tr class="memdesc:gac3310eaf44cc95e46be5c3e9a8a6818e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the Y mouse coordinate.  <a href="#gac3310eaf44cc95e46be5c3e9a8a6818e">More...</a><br /></td></tr>
<tr class="separator:gac3310eaf44cc95e46be5c3e9a8a6818e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad25829294affb5693a11aa237d3fe799"><td class="memItemLeft" align="right" valign="top">__extern enum <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aea">caca_event_type</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799">caca_get_event_type</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:gad25829294affb5693a11aa237d3fe799"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return an event's type.  <a href="#gad25829294affb5693a11aa237d3fe799">More...</a><br /></td></tr>
<tr class="separator:gad25829294affb5693a11aa237d3fe799"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga946d19f0da7be7a53b848f8dd4251de7"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga946d19f0da7be7a53b848f8dd4251de7">caca_get_event_key_ch</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:ga946d19f0da7be7a53b848f8dd4251de7"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a key press or key release event's value.  <a href="#ga946d19f0da7be7a53b848f8dd4251de7">More...</a><br /></td></tr>
<tr class="separator:ga946d19f0da7be7a53b848f8dd4251de7"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafe4050ef5bbaa8c2bce622beadc7df8d"><td class="memItemLeft" align="right" valign="top">__extern uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gafe4050ef5bbaa8c2bce622beadc7df8d">caca_get_event_key_utf32</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:gafe4050ef5bbaa8c2bce622beadc7df8d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a key press or key release event's Unicode value.  <a href="#gafe4050ef5bbaa8c2bce622beadc7df8d">More...</a><br /></td></tr>
<tr class="separator:gafe4050ef5bbaa8c2bce622beadc7df8d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad1e178b837e26e04893e4fd00b16300d"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gad1e178b837e26e04893e4fd00b16300d">caca_get_event_key_utf8</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *, char *)</td></tr>
<tr class="memdesc:gad1e178b837e26e04893e4fd00b16300d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a key press or key release event's UTF-8 value.  <a href="#gad1e178b837e26e04893e4fd00b16300d">More...</a><br /></td></tr>
<tr class="separator:gad1e178b837e26e04893e4fd00b16300d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga717e5140c28618ff1e7b9f5b8088bd30"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga717e5140c28618ff1e7b9f5b8088bd30">caca_get_event_mouse_button</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:ga717e5140c28618ff1e7b9f5b8088bd30"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a mouse press or mouse release event's button.  <a href="#ga717e5140c28618ff1e7b9f5b8088bd30">More...</a><br /></td></tr>
<tr class="separator:ga717e5140c28618ff1e7b9f5b8088bd30"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga43631e56f18159f29500b7ff9f2f86dc"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga43631e56f18159f29500b7ff9f2f86dc">caca_get_event_mouse_x</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:ga43631e56f18159f29500b7ff9f2f86dc"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a mouse motion event's X coordinate.  <a href="#ga43631e56f18159f29500b7ff9f2f86dc">More...</a><br /></td></tr>
<tr class="separator:ga43631e56f18159f29500b7ff9f2f86dc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga0a8a947bba8fe524f5b1885581585205"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga0a8a947bba8fe524f5b1885581585205">caca_get_event_mouse_y</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:ga0a8a947bba8fe524f5b1885581585205"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a mouse motion event's Y coordinate.  <a href="#ga0a8a947bba8fe524f5b1885581585205">More...</a><br /></td></tr>
<tr class="separator:ga0a8a947bba8fe524f5b1885581585205"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaf37f40ebbd84e1febfb45980e33ce861"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#gaf37f40ebbd84e1febfb45980e33ce861">caca_get_event_resize_width</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:gaf37f40ebbd84e1febfb45980e33ce861"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a resize event's display width value.  <a href="#gaf37f40ebbd84e1febfb45980e33ce861">More...</a><br /></td></tr>
<tr class="separator:gaf37f40ebbd84e1febfb45980e33ce861"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga20d8da5ded5ae58fa3050c8fadc40a46"><td class="memItemLeft" align="right" valign="top">__extern int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__caca__event.html#ga20d8da5ded5ae58fa3050c8fadc40a46">caca_get_event_resize_height</a> (<a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *)</td></tr>
<tr class="memdesc:ga20d8da5ded5ae58fa3050c8fadc40a46"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a resize event's display height value.  <a href="#ga20d8da5ded5ae58fa3050c8fadc40a46">More...</a><br /></td></tr>
<tr class="separator:ga20d8da5ded5ae58fa3050c8fadc40a46"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>These functions handle user events such as keyboard input and mouse clicks. </p>
<h2 class="groupheader">Function Documentation</h2>
<a id="ga98e74dedbe1629c0fc9460761696e050"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga98e74dedbe1629c0fc9460761696e050">&#9670;&nbsp;</a></span>caca_get_event()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern int caca_get_event </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> *&#160;</td>
          <td class="paramname"><em>dp</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>event_mask</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> *&#160;</td>
          <td class="paramname"><em>ev</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>timeout</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Poll the event queue for mouse or keyboard events matching the event mask and return the first matching event. Non-matching events are discarded. If <code>event_mask</code> is zero, the function returns immediately.</p>
<p>The timeout value tells how long this function needs to wait for an event. A value of zero returns immediately and the function returns zero if no more events are pending in the queue. A negative value causes the function to wait indefinitely until a matching event is received.</p>
<p>If not null, <code>ev</code> will be filled with information about the event received. If null, the function will return but no information about the event will be sent.</p>
<p>This function never fails.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">dp</td><td>The libcaca graphical context. </td></tr>
    <tr><td class="paramname">event_mask</td><td>Bitmask of requested events. </td></tr>
    <tr><td class="paramname">timeout</td><td>A timeout value in microseconds, -1 for blocking behaviour </td></tr>
    <tr><td class="paramname">ev</td><td>A pointer to a <a class="el" href="structcaca__event.html" title="Handling of user events. ">caca_event</a> structure, or NULL. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>1 if a matching event was received, or 0 if the wait timeouted. </dd></dl>

<p class="reference">References <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aeaaaa0b1e20607444a2233e28758897f512">CACA_EVENT_NONE</a>.</p>

<p class="reference">Referenced by <a class="el" href="group__conio.html#ga228f0a90f6539f0dbd2a5aabb41db726">caca_conio_getch()</a>, and <a class="el" href="group__conio.html#ga3f489bbd46a56e058f022ffc0cf57e03">caca_conio_kbhit()</a>.</p>

</div>
</div>
<a id="gaf01ff2ff5f63e38eed2052b53181da2d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaf01ff2ff5f63e38eed2052b53181da2d">&#9670;&nbsp;</a></span>caca_get_mouse_x()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern int caca_get_mouse_x </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> const *&#160;</td>
          <td class="paramname"><em>dp</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return the X coordinate of the mouse position last time it was detected. This function is not reliable if the ncurses or S-Lang drivers are being used, because mouse position is only detected when the mouse is clicked. Other drivers such as X11 work well.</p>
<p>This function never fails.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">dp</td><td>The libcaca graphical context. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The X mouse coordinate. </dd></dl>

<p class="reference">References <a class="el" href="group__libcaca.html#gad85b2ff4c7f952b3cc32f117343a6375">caca_get_canvas_width()</a>.</p>

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</div>
<a id="gac3310eaf44cc95e46be5c3e9a8a6818e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gac3310eaf44cc95e46be5c3e9a8a6818e">&#9670;&nbsp;</a></span>caca_get_mouse_y()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern int caca_get_mouse_y </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ada5af7a20f3e2f6c103078181b07393e">caca_display_t</a> const *&#160;</td>
          <td class="paramname"><em>dp</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return the Y coordinate of the mouse position last time it was detected. This function is not reliable if the ncurses or S-Lang drivers are being used, because mouse position is only detected when the mouse is clicked. Other drivers such as X11 work well.</p>
<p>This function never fails.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">dp</td><td>The libcaca graphical context. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The Y mouse coordinate. </dd></dl>

<p class="reference">References <a class="el" href="group__libcaca.html#gaa529140e8cf31379a6b57af7c37c9d2f">caca_get_canvas_height()</a>.</p>

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<a id="gad25829294affb5693a11aa237d3fe799"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gad25829294affb5693a11aa237d3fe799">&#9670;&nbsp;</a></span>caca_get_event_type()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern enum <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aea">caca_event_type</a> caca_get_event_type </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return the type of an event. This function may always be called on an event after <a class="el" href="group__caca__event.html#ga98e74dedbe1629c0fc9460761696e050" title="Get the next mouse or keyboard input event. ">caca_get_event()</a> was called, and its return value indicates which other functions may be called:</p><ul>
<li><code>CACA_EVENT_NONE:</code> no other function may be called.</li>
<li><code>CACA_EVENT_KEY_PRESS</code>, <code>CACA_EVENT_KEY_RELEASE:</code> <a class="el" href="group__caca__event.html#ga946d19f0da7be7a53b848f8dd4251de7" title="Return a key press or key release event&#39;s value. ">caca_get_event_key_ch()</a>, <a class="el" href="group__caca__event.html#gafe4050ef5bbaa8c2bce622beadc7df8d" title="Return a key press or key release event&#39;s Unicode value. ">caca_get_event_key_utf32()</a> and <a class="el" href="group__caca__event.html#gad1e178b837e26e04893e4fd00b16300d" title="Return a key press or key release event&#39;s UTF-8 value. ">caca_get_event_key_utf8()</a> may be called.</li>
<li><code>CACA_EVENT_MOUSE_PRESS</code>, <code>CACA_EVENT_MOUSE_RELEASE:</code> <a class="el" href="group__caca__event.html#ga717e5140c28618ff1e7b9f5b8088bd30" title="Return a mouse press or mouse release event&#39;s button. ">caca_get_event_mouse_button()</a> may be called.</li>
<li><code>CACA_EVENT_MOUSE_MOTION:</code> <a class="el" href="group__caca__event.html#ga43631e56f18159f29500b7ff9f2f86dc" title="Return a mouse motion event&#39;s X coordinate. ">caca_get_event_mouse_x()</a> and <a class="el" href="group__caca__event.html#ga0a8a947bba8fe524f5b1885581585205" title="Return a mouse motion event&#39;s Y coordinate. ">caca_get_event_mouse_y()</a> may be called.</li>
<li><code>CACA_EVENT_RESIZE:</code> <a class="el" href="group__caca__event.html#gaf37f40ebbd84e1febfb45980e33ce861" title="Return a resize event&#39;s display width value. ">caca_get_event_resize_width()</a> and <a class="el" href="group__caca__event.html#ga20d8da5ded5ae58fa3050c8fadc40a46" title="Return a resize event&#39;s display height value. ">caca_get_event_resize_height()</a> may be called.</li>
<li><code>CACA_EVENT_QUIT:</code> no other function may be called.</li>
</ul>
<p>This function never fails.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's type. </dd></dl>

</div>
</div>
<a id="ga946d19f0da7be7a53b848f8dd4251de7"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga946d19f0da7be7a53b848f8dd4251de7">&#9670;&nbsp;</a></span>caca_get_event_key_ch()</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern int caca_get_event_key_ch </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return either the ASCII value for an event's key, or if the key is not an ASCII character, an appropriate <em>enum</em> <em>caca_key</em> value.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_KEY_PRESS</code> or <code>CACA_EVENT_KEY_RELEASE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The key value. </dd></dl>

<p class="reference">Referenced by <a class="el" href="group__conio.html#ga228f0a90f6539f0dbd2a5aabb41db726">caca_conio_getch()</a>, and <a class="el" href="group__conio.html#ga3f489bbd46a56e058f022ffc0cf57e03">caca_conio_kbhit()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#gafe4050ef5bbaa8c2bce622beadc7df8d">&#9670;&nbsp;</a></span>caca_get_event_key_utf32()</h2>

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      <table class="memname">
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          <td class="memname">__extern uint32_t caca_get_event_key_utf32 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Return the UTF-32/UCS-4 value for an event's key if it resolves to a printable character.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_KEY_PRESS</code> or <code>CACA_EVENT_KEY_RELEASE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The key's Unicode value. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#gad1e178b837e26e04893e4fd00b16300d">&#9670;&nbsp;</a></span>caca_get_event_key_utf8()</h2>

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          <td class="memname">__extern int caca_get_event_key_utf8 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">char *&#160;</td>
          <td class="paramname"><em>utf8</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
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<p>Write the UTF-8 value for an event's key if it resolves to a printable character. Up to 6 UTF-8 bytes and a null termination are written.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_KEY_PRESS</code> or <code>CACA_EVENT_KEY_RELEASE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
    <tr><td class="paramname">utf8</td><td>A string buffer with enough bytes to hold the pressed key value in UTF-8. Though fewer bytes may be written to it, 7 bytes is the minimum safe size. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>This function always returns 0. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga717e5140c28618ff1e7b9f5b8088bd30">&#9670;&nbsp;</a></span>caca_get_event_mouse_button()</h2>

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          <td class="memname">__extern int caca_get_event_mouse_button </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
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      </table>
</div><div class="memdoc">
<p>Return the mouse button index for an event.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_MOUSE_PRESS</code> or <code>CACA_EVENT_MOUSE_RELEASE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<p>This function returns 1 for the left mouse button, 2 for the right mouse button, and 3 for the middle mouse button.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's mouse button. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga43631e56f18159f29500b7ff9f2f86dc">&#9670;&nbsp;</a></span>caca_get_event_mouse_x()</h2>

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          <td class="memname">__extern int caca_get_event_mouse_x </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Return the X coordinate for a mouse motion event.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_MOUSE_MOTION</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's X mouse coordinate. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga0a8a947bba8fe524f5b1885581585205">&#9670;&nbsp;</a></span>caca_get_event_mouse_y()</h2>

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          <td class="memname">__extern int caca_get_event_mouse_y </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return the Y coordinate for a mouse motion event.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_MOUSE_MOTION</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's Y mouse coordinate. </dd></dl>

</div>
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<h2 class="memtitle"><span class="permalink"><a href="#gaf37f40ebbd84e1febfb45980e33ce861">&#9670;&nbsp;</a></span>caca_get_event_resize_width()</h2>

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          <td class="memname">__extern int caca_get_event_resize_width </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
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<p>Return the width value for a display resize event.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_RESIZE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's new display width value. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga20d8da5ded5ae58fa3050c8fadc40a46">&#9670;&nbsp;</a></span>caca_get_event_resize_height()</h2>

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<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">__extern int caca_get_event_resize_height </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="caca_8h.html#ab47da7d18aef50248c90de93efd6ba9b">caca_event_t</a> const *&#160;</td>
          <td class="paramname"><em>ev</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Return the height value for a display resize event.</p>
<p>This function never fails, but must only be called with a valid event of type <code>CACA_EVENT_RESIZE</code>, or the results will be undefined. See <a class="el" href="group__caca__event.html#gad25829294affb5693a11aa237d3fe799" title="Return an event&#39;s type. ">caca_get_event_type()</a> for more information.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ev</td><td>The libcaca event. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The event's new display height value. </dd></dl>

<p class="reference">References <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aeaab1da825755a2ac3593cca73721b77e22">CACA_EVENT_KEY_PRESS</a>, <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aeaaee957c6fa4d927f8ae25c25c2948d34d">CACA_EVENT_KEY_RELEASE</a>, <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aeaaaa0b1e20607444a2233e28758897f512">CACA_EVENT_NONE</a>, <a class="el" href="caca_8h.html#a40754185ca237fc44a95357afba34aeaa81cbd28c6c9cd0d733dc0e6d94861177">CACA_EVENT_RESIZE</a>, <a class="el" href="group__libcaca.html#gaa529140e8cf31379a6b57af7c37c9d2f">caca_get_canvas_height()</a>, and <a class="el" href="group__libcaca.html#gad85b2ff4c7f952b3cc32f117343a6375">caca_get_canvas_width()</a>.</p>

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