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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div class="header">
  <div class="summary">
<a href="#nested-classes">Data Structures</a> &#124;
<a href="#typedef-members">Typedefs</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle">
<div class="title">Monitor reference</div>  </div>
</div><!--header-->
<div class="contents">
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structGLFWvidmode.html">GLFWvidmode</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Video mode type.  <a href="structGLFWvidmode.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gamma ramp.  <a href="structGLFWgammaramp.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga8d9efd1cde9426692c73fe40437d0ae3"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a></td></tr>
<tr class="memdesc:ga8d9efd1cde9426692c73fe40437d0ae3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Opaque monitor object.  <a href="#ga8d9efd1cde9426692c73fe40437d0ae3">More...</a><br /></td></tr>
<tr class="separator:ga8d9efd1cde9426692c73fe40437d0ae3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8a7ee579a66720f24d656526f3e44c63"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga8a7ee579a66720f24d656526f3e44c63">GLFWmonitorfun</a>) (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *, int)</td></tr>
<tr class="memdesc:ga8a7ee579a66720f24d656526f3e44c63"><td class="mdescLeft">&#160;</td><td class="mdescRight">The function signature for monitor configuration callbacks.  <a href="#ga8a7ee579a66720f24d656526f3e44c63">More...</a><br /></td></tr>
<tr class="separator:ga8a7ee579a66720f24d656526f3e44c63"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gae48aadf4ea0967e6605c8f58fa5daccb"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#gae48aadf4ea0967e6605c8f58fa5daccb">GLFWvidmode</a></td></tr>
<tr class="memdesc:gae48aadf4ea0967e6605c8f58fa5daccb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Video mode type.  <a href="#gae48aadf4ea0967e6605c8f58fa5daccb">More...</a><br /></td></tr>
<tr class="separator:gae48aadf4ea0967e6605c8f58fa5daccb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaec0bd37af673be8813592849f13e02f0"><td class="memItemLeft" align="right" valign="top">typedef struct <a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#gaec0bd37af673be8813592849f13e02f0">GLFWgammaramp</a></td></tr>
<tr class="memdesc:gaec0bd37af673be8813592849f13e02f0"><td class="mdescLeft">&#160;</td><td class="mdescRight">Gamma ramp.  <a href="#gaec0bd37af673be8813592849f13e02f0">More...</a><br /></td></tr>
<tr class="separator:gaec0bd37af673be8813592849f13e02f0"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga3fba51c8bd36491d4712aa5bd074a537"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> **&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga3fba51c8bd36491d4712aa5bd074a537">glfwGetMonitors</a> (int *count)</td></tr>
<tr class="memdesc:ga3fba51c8bd36491d4712aa5bd074a537"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the currently connected monitors.  <a href="#ga3fba51c8bd36491d4712aa5bd074a537">More...</a><br /></td></tr>
<tr class="separator:ga3fba51c8bd36491d4712aa5bd074a537"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga721867d84c6d18d6790d64d2847ca0b1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga721867d84c6d18d6790d64d2847ca0b1">glfwGetPrimaryMonitor</a> (void)</td></tr>
<tr class="memdesc:ga721867d84c6d18d6790d64d2847ca0b1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the primary monitor.  <a href="#ga721867d84c6d18d6790d64d2847ca0b1">More...</a><br /></td></tr>
<tr class="separator:ga721867d84c6d18d6790d64d2847ca0b1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga102f54e7acc9149edbcf0997152df8c9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga102f54e7acc9149edbcf0997152df8c9">glfwGetMonitorPos</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor, int *xpos, int *ypos)</td></tr>
<tr class="memdesc:ga102f54e7acc9149edbcf0997152df8c9"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the position of the monitor's viewport on the virtual screen.  <a href="#ga102f54e7acc9149edbcf0997152df8c9">More...</a><br /></td></tr>
<tr class="separator:ga102f54e7acc9149edbcf0997152df8c9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7d8bffc6c55539286a6bd20d32a8d7ea"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga7d8bffc6c55539286a6bd20d32a8d7ea">glfwGetMonitorPhysicalSize</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor, int *widthMM, int *heightMM)</td></tr>
<tr class="memdesc:ga7d8bffc6c55539286a6bd20d32a8d7ea"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the physical size of the monitor.  <a href="#ga7d8bffc6c55539286a6bd20d32a8d7ea">More...</a><br /></td></tr>
<tr class="separator:ga7d8bffc6c55539286a6bd20d32a8d7ea"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga79a34ee22ff080ca954a9663e4679daf"><td class="memItemLeft" align="right" valign="top">const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga79a34ee22ff080ca954a9663e4679daf">glfwGetMonitorName</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor)</td></tr>
<tr class="memdesc:ga79a34ee22ff080ca954a9663e4679daf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the name of the specified monitor.  <a href="#ga79a34ee22ff080ca954a9663e4679daf">More...</a><br /></td></tr>
<tr class="separator:ga79a34ee22ff080ca954a9663e4679daf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gac3fe0f647f68b731f99756cd81897378"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__monitor.html#ga8a7ee579a66720f24d656526f3e44c63">GLFWmonitorfun</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#gac3fe0f647f68b731f99756cd81897378">glfwSetMonitorCallback</a> (<a class="el" href="group__monitor.html#ga8a7ee579a66720f24d656526f3e44c63">GLFWmonitorfun</a> cbfun)</td></tr>
<tr class="memdesc:gac3fe0f647f68b731f99756cd81897378"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets the monitor configuration callback.  <a href="#gac3fe0f647f68b731f99756cd81897378">More...</a><br /></td></tr>
<tr class="separator:gac3fe0f647f68b731f99756cd81897378"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga820b0ce9a5237d645ea7cbb4bd383458"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga820b0ce9a5237d645ea7cbb4bd383458">glfwGetVideoModes</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor, int *count)</td></tr>
<tr class="memdesc:ga820b0ce9a5237d645ea7cbb4bd383458"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the available video modes for the specified monitor.  <a href="#ga820b0ce9a5237d645ea7cbb4bd383458">More...</a><br /></td></tr>
<tr class="separator:ga820b0ce9a5237d645ea7cbb4bd383458"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafc1bb972a921ad5b3bd5d63a95fc2d52"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#gafc1bb972a921ad5b3bd5d63a95fc2d52">glfwGetVideoMode</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor)</td></tr>
<tr class="memdesc:gafc1bb972a921ad5b3bd5d63a95fc2d52"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the current mode of the specified monitor.  <a href="#gafc1bb972a921ad5b3bd5d63a95fc2d52">More...</a><br /></td></tr>
<tr class="separator:gafc1bb972a921ad5b3bd5d63a95fc2d52"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga6ac582625c990220785ddd34efa3169a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga6ac582625c990220785ddd34efa3169a">glfwSetGamma</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor, float gamma)</td></tr>
<tr class="memdesc:ga6ac582625c990220785ddd34efa3169a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Generates a gamma ramp and sets it for the specified monitor.  <a href="#ga6ac582625c990220785ddd34efa3169a">More...</a><br /></td></tr>
<tr class="separator:ga6ac582625c990220785ddd34efa3169a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gab7c41deb2219bde3e1eb756ddaa9ec80"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#gab7c41deb2219bde3e1eb756ddaa9ec80">glfwGetGammaRamp</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor)</td></tr>
<tr class="memdesc:gab7c41deb2219bde3e1eb756ddaa9ec80"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns the current gamma ramp for the specified monitor.  <a href="#gab7c41deb2219bde3e1eb756ddaa9ec80">More...</a><br /></td></tr>
<tr class="separator:gab7c41deb2219bde3e1eb756ddaa9ec80"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga583f0ffd0d29613d8cd172b996bbf0dd"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__monitor.html#ga583f0ffd0d29613d8cd172b996bbf0dd">glfwSetGammaRamp</a> (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *monitor, const <a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a> *ramp)</td></tr>
<tr class="memdesc:ga583f0ffd0d29613d8cd172b996bbf0dd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sets the current gamma ramp for the specified monitor.  <a href="#ga583f0ffd0d29613d8cd172b996bbf0dd">More...</a><br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>This is the reference documentation for monitor related functions and types. For more task-oriented information, see the <a class="el" href="monitor_guide.html">Monitor guide</a>. </p>
<h2 class="groupheader">Typedef Documentation</h2>
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<p>This describes the gamma ramp for a monitor.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_gamma">Gamma ramp</a> </dd>
<dd>
<a class="el" href="group__monitor.html#gab7c41deb2219bde3e1eb756ddaa9ec80" title="Returns the current gamma ramp for the specified monitor. ">glfwGetGammaRamp</a> <a class="el" href="group__monitor.html#ga583f0ffd0d29613d8cd172b996bbf0dd" title="Sets the current gamma ramp for the specified monitor. ">glfwSetGammaRamp</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">typedef struct <a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> <a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a></td>
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<p>Opaque monitor object.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_object">Monitor objects</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">typedef void(*  GLFWmonitorfun) (<a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *, int)</td>
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<p>This is the function signature for monitor configuration callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor that was connected or disconnected. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">event</td><td>One of <code>GLFW_CONNECTED</code> or <code>GLFW_DISCONNECTED</code>.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_event">Monitor configuration changes</a> </dd>
<dd>
<a class="el" href="group__monitor.html#gac3fe0f647f68b731f99756cd81897378" title="Sets the monitor configuration callback. ">glfwSetMonitorCallback</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">typedef struct <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a>  <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a></td>
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<p>This describes a single video mode.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_modes">Video modes</a> </dd>
<dd>
<a class="el" href="group__monitor.html#gafc1bb972a921ad5b3bd5d63a95fc2d52" title="Returns the current mode of the specified monitor. ">glfwGetVideoMode</a> <a class="el" href="group__monitor.html#ga820b0ce9a5237d645ea7cbb4bd383458" title="Returns the available video modes for the specified monitor. ">glfwGetVideoModes</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 1.0. </dd></dl>
<dl class="section user"><dt></dt><dd><b>GLFW 3:</b> Added refresh rate member. </dd></dl>

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<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname">const <a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a>* glfwGetGammaRamp </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
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<p>This function returns the current gamma ramp of the specified monitor.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The current gamma ramp, or <code>NULL</code> if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The returned structure and its arrays are allocated and freed by GLFW. You should not free them yourself. They are valid until the specified monitor is disconnected, this function is called again for that monitor or the library is terminated.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_gamma">Gamma ramp</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">const char* glfwGetMonitorName </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
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<p>This function returns a human-readable name, encoded as UTF-8, of the specified monitor. The name typically reflects the make and model of the monitor and is not guaranteed to be unique among the connected monitors.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The UTF-8 encoded name of the monitor, or <code>NULL</code> if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The returned string is allocated and freed by GLFW. You should not free it yourself. It is valid until the specified monitor is disconnected or the library is terminated.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_properties">Monitor properties</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">void glfwGetMonitorPhysicalSize </td>
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          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
          <td class="paramname"><em>monitor</em>, </td>
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          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>widthMM</em>, </td>
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          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>heightMM</em>&#160;</td>
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<p>This function returns the size, in millimetres, of the display area of the specified monitor.</p>
<p>Some systems do not provide accurate monitor size information, either because the monitor <a href="https://en.wikipedia.org/wiki/Extended_display_identification_data">EDID</a> data is incorrect or because the driver does not report it accurately.</p>
<p>Any or all of the size arguments may be <code>NULL</code>. If an error occurs, all non-<code>NULL</code> size arguments will be set to zero.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">widthMM</td><td>Where to store the width, in millimetres, of the monitor's display area, or <code>NULL</code>. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">heightMM</td><td>Where to store the height, in millimetres, of the monitor's display area, or <code>NULL</code>.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>.</dd></dl>
<dl class="section remark"><dt>Remarks</dt><dd><b>Windows:</b> calculates the returned physical size from the current resolution and system DPI instead of querying the monitor EDID data.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_properties">Monitor properties</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">void glfwGetMonitorPos </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
          <td class="paramname"><em>monitor</em>, </td>
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          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>xpos</em>, </td>
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          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>ypos</em>&#160;</td>
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<p>This function returns the position, in screen coordinates, of the upper-left corner of the specified monitor.</p>
<p>Any or all of the position arguments may be <code>NULL</code>. If an error occurs, all non-<code>NULL</code> position arguments will be set to zero.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">xpos</td><td>Where to store the monitor x-coordinate, or <code>NULL</code>. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">ypos</td><td>Where to store the monitor y-coordinate, or <code>NULL</code>.</td></tr>
  </table>
  </dd>
</dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_properties">Monitor properties</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a>** glfwGetMonitors </td>
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<p>This function returns an array of handles for all currently connected monitors. The primary monitor is always first in the returned array. If no monitors were found, this function returns <code>NULL</code>.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[out]</td><td class="paramname">count</td><td>Where to store the number of monitors in the returned array. This is set to zero if an error occurred. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>An array of monitor handles, or <code>NULL</code> if no monitors were found or if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The returned array is allocated and freed by GLFW. You should not free it yourself. It is guaranteed to be valid only until the monitor configuration changes or the library is terminated.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_monitors">Retrieving monitors</a> </dd>
<dd>
<a class="el" href="monitor_guide.html#monitor_event">Monitor configuration changes</a> </dd>
<dd>
<a class="el" href="group__monitor.html#ga721867d84c6d18d6790d64d2847ca0b1" title="Returns the primary monitor. ">glfwGetPrimaryMonitor</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a>* glfwGetPrimaryMonitor </td>
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<p>This function returns the primary monitor. This is usually the monitor where elements like the task bar or global menu bar are located.</p>
<dl class="section return"><dt>Returns</dt><dd>The primary monitor, or <code>NULL</code> if no monitors were found or if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section remark"><dt>Remarks</dt><dd>The primary monitor is always first in the array returned by <a class="el" href="group__monitor.html#ga3fba51c8bd36491d4712aa5bd074a537">glfwGetMonitors</a>.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_monitors">Retrieving monitors</a> </dd>
<dd>
<a class="el" href="group__monitor.html#ga3fba51c8bd36491d4712aa5bd074a537" title="Returns the currently connected monitors. ">glfwGetMonitors</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">const <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a>* glfwGetVideoMode </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
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<p>This function returns the current video mode of the specified monitor. If you have created a full screen window for that monitor, the return value will depend on whether that window is iconified.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The current mode of the monitor, or <code>NULL</code> if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The returned array is allocated and freed by GLFW. You should not free it yourself. It is valid until the specified monitor is disconnected or the library is terminated.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_modes">Video modes</a> </dd>
<dd>
<a class="el" href="group__monitor.html#ga820b0ce9a5237d645ea7cbb4bd383458" title="Returns the available video modes for the specified monitor. ">glfwGetVideoModes</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. Replaces <code>glfwGetDesktopMode</code>. </dd></dl>

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          <td class="memname">const <a class="el" href="structGLFWvidmode.html">GLFWvidmode</a>* glfwGetVideoModes </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
          <td class="paramname"><em>monitor</em>, </td>
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          <td></td>
          <td class="paramtype">int *&#160;</td>
          <td class="paramname"><em>count</em>&#160;</td>
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          <td>)</td>
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<p>This function returns an array of all video modes supported by the specified monitor. The returned array is sorted in ascending order, first by color bit depth (the sum of all channel depths) and then by resolution area (the product of width and height).</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor to query. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">count</td><td>Where to store the number of video modes in the returned array. This is set to zero if an error occurred. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>An array of video modes, or <code>NULL</code> if an <a class="el" href="intro_guide.html#error_handling">error</a> occurred.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The returned array is allocated and freed by GLFW. You should not free it yourself. It is valid until the specified monitor is disconnected, this function is called again for that monitor or the library is terminated.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_modes">Video modes</a> </dd>
<dd>
<a class="el" href="group__monitor.html#gafc1bb972a921ad5b3bd5d63a95fc2d52" title="Returns the current mode of the specified monitor. ">glfwGetVideoMode</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 1.0. </dd></dl>
<dl class="section user"><dt></dt><dd><b>GLFW 3:</b> Changed to return an array of modes for a specific monitor. </dd></dl>

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          <td class="memname">void glfwSetGamma </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
          <td class="paramname"><em>monitor</em>, </td>
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          <td class="paramtype">float&#160;</td>
          <td class="paramname"><em>gamma</em>&#160;</td>
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<p>This function generates a 256-element gamma ramp from the specified exponent and then calls <a class="el" href="group__monitor.html#ga583f0ffd0d29613d8cd172b996bbf0dd">glfwSetGammaRamp</a> with it. The value must be a finite number greater than zero.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor whose gamma ramp to set. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">gamma</td><td>The desired exponent.</td></tr>
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  </dd>
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<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>, <a class="el" href="group__errors.html#gaaf2ef9aa8202c2b82ac2d921e554c687">GLFW_INVALID_VALUE</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_gamma">Gamma ramp</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname">void glfwSetGammaRamp </td>
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          <td class="paramtype"><a class="el" href="group__monitor.html#ga8d9efd1cde9426692c73fe40437d0ae3">GLFWmonitor</a> *&#160;</td>
          <td class="paramname"><em>monitor</em>, </td>
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          <td class="paramtype">const <a class="el" href="structGLFWgammaramp.html">GLFWgammaramp</a> *&#160;</td>
          <td class="paramname"><em>ramp</em>&#160;</td>
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<p>This function sets the current gamma ramp for the specified monitor. The original gamma ramp for that monitor is saved by GLFW the first time this function is called and is restored by <a class="el" href="group__init.html#gaaae48c0a18607ea4a4ba951d939f0901">glfwTerminate</a>.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">monitor</td><td>The monitor whose gamma ramp to set. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">ramp</td><td>The gamma ramp to use.</td></tr>
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  </dd>
</dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a> and <a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>.</dd></dl>
<dl class="section remark"><dt>Remarks</dt><dd>Gamma ramp sizes other than 256 are not supported by all platforms or graphics hardware.</dd>
<dd>
<b>Windows:</b> The gamma ramp size must be 256.</dd></dl>
<dl class="section user"><dt>Pointer lifetime</dt><dd>The specified gamma ramp is copied before this function returns.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_gamma">Gamma ramp</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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          <td class="memname"><a class="el" href="group__monitor.html#ga8a7ee579a66720f24d656526f3e44c63">GLFWmonitorfun</a> glfwSetMonitorCallback </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="group__monitor.html#ga8a7ee579a66720f24d656526f3e44c63">GLFWmonitorfun</a>&#160;</td>
          <td class="paramname"><em>cbfun</em></td><td>)</td>
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<p>This function sets the monitor configuration callback, or removes the currently set callback. This is called when a monitor is connected to or disconnected from the system.</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">cbfun</td><td>The new callback, or <code>NULL</code> to remove the currently set callback. </td></tr>
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  </dd>
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<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or the library had not been <a class="el" href="intro_guide.html#intro_init">initialized</a>.</dd></dl>
<dl class="section user"><dt>Errors</dt><dd>Possible errors include <a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>.</dd></dl>
<dl class="section user"><dt>Thread safety</dt><dd>This function must only be called from the main thread.</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="monitor_guide.html#monitor_event">Monitor configuration changes</a></dd></dl>
<dl class="section since"><dt>Since</dt><dd>Added in version 3.0. </dd></dl>

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Last update on Thu Aug 18 2016 for GLFW 3.2.1
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