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nextion
2023-09-30 08:42:44 +00:00
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<p>How to attach(or detach) callback function called when touch event occurs.
<a href="#details">More...</a></p>
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Classes</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">class &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_nex_touch.html">NexTouch</a></td></tr>
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<tr class="memitem:ga162dea47b078e8878d10d6981a9dd0c6"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___touch_event.html#ga162dea47b078e8878d10d6981a9dd0c6">NexTouchEventCb</a> )(void *ptr)</td></tr>
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<p>How to attach(or detach) callback function called when touch event occurs. </p>
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<td class="memname">#define NEX_EVENT_POP&#160;&#160;&#160;(0x00)</td>
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<p>Pop touch event occuring when your finger or pen leaving from Nextion touch pannel. </p>
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<td class="memname">#define NEX_EVENT_PUSH&#160;&#160;&#160;(0x01)</td>
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<p>Push touch event occuring when your finger or pen coming to Nextion touch pannel. </p>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* NexTouchEventCb)(void *ptr)</td>
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<p>Type of callback funciton when an touch event occurs.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">ptr</td><td>- user pointer for any purpose. Commonly, it is a pointer to a object. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>none. </dd></dl>
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