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<div class="header">
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<a href="#define-members">Macros</a>  </div>
  <div class="headertitle">
<div class="title">Error codes<div class="ingroups"><a class="el" href="group__init.html">Initialization, version and error reference</a></div></div>  </div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>&#160;&#160;&#160;0x00010001</td></tr>
<tr class="memdesc:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="mdescLeft">&#160;</td><td class="mdescRight">GLFW has not been initialized.  <a href="#ga2374ee02c177f12e1fa76ff3ed15e14a">More...</a><br /></td></tr>
<tr class="separator:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gaa8290386e9528ccb9e42a3a4e16fc0d0">GLFW_NO_CURRENT_CONTEXT</a>&#160;&#160;&#160;0x00010002</td></tr>
<tr class="memdesc:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="mdescLeft">&#160;</td><td class="mdescRight">No context is current for this thread.  <a href="#gaa8290386e9528ccb9e42a3a4e16fc0d0">More...</a><br /></td></tr>
<tr class="separator:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga76f6bb9c4eea73db675f096b404593ce"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga76f6bb9c4eea73db675f096b404593ce">GLFW_INVALID_ENUM</a>&#160;&#160;&#160;0x00010003</td></tr>
<tr class="memdesc:ga76f6bb9c4eea73db675f096b404593ce"><td class="mdescLeft">&#160;</td><td class="mdescRight">One of the arguments to the function was an invalid enum value.  <a href="#ga76f6bb9c4eea73db675f096b404593ce">More...</a><br /></td></tr>
<tr class="separator:ga76f6bb9c4eea73db675f096b404593ce"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gaaf2ef9aa8202c2b82ac2d921e554c687">GLFW_INVALID_VALUE</a>&#160;&#160;&#160;0x00010004</td></tr>
<tr class="memdesc:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="mdescLeft">&#160;</td><td class="mdescRight">One of the arguments to the function was an invalid value.  <a href="#gaaf2ef9aa8202c2b82ac2d921e554c687">More...</a><br /></td></tr>
<tr class="separator:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga9023953a2bcb98c2906afd071d21ee7f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga9023953a2bcb98c2906afd071d21ee7f">GLFW_OUT_OF_MEMORY</a>&#160;&#160;&#160;0x00010005</td></tr>
<tr class="memdesc:ga9023953a2bcb98c2906afd071d21ee7f"><td class="mdescLeft">&#160;</td><td class="mdescRight">A memory allocation failed.  <a href="#ga9023953a2bcb98c2906afd071d21ee7f">More...</a><br /></td></tr>
<tr class="separator:ga9023953a2bcb98c2906afd071d21ee7f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga56882b290db23261cc6c053c40c2d08e"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga56882b290db23261cc6c053c40c2d08e">GLFW_API_UNAVAILABLE</a>&#160;&#160;&#160;0x00010006</td></tr>
<tr class="memdesc:ga56882b290db23261cc6c053c40c2d08e"><td class="mdescLeft">&#160;</td><td class="mdescRight">GLFW could not find support for the requested API on the system.  <a href="#ga56882b290db23261cc6c053c40c2d08e">More...</a><br /></td></tr>
<tr class="separator:ga56882b290db23261cc6c053c40c2d08e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gad16c5565b4a69f9c2a9ac2c0dbc89462">GLFW_VERSION_UNAVAILABLE</a>&#160;&#160;&#160;0x00010007</td></tr>
<tr class="memdesc:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="mdescLeft">&#160;</td><td class="mdescRight">The requested OpenGL or OpenGL ES version is not available.  <a href="#gad16c5565b4a69f9c2a9ac2c0dbc89462">More...</a><br /></td></tr>
<tr class="separator:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gad44162d78100ea5e87cdd38426b8c7a1"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>&#160;&#160;&#160;0x00010008</td></tr>
<tr class="memdesc:gad44162d78100ea5e87cdd38426b8c7a1"><td class="mdescLeft">&#160;</td><td class="mdescRight">A platform-specific error occurred that does not match any of the more specific categories.  <a href="#gad44162d78100ea5e87cdd38426b8c7a1">More...</a><br /></td></tr>
<tr class="separator:gad44162d78100ea5e87cdd38426b8c7a1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga196e125ef261d94184e2b55c05762f14"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga196e125ef261d94184e2b55c05762f14">GLFW_FORMAT_UNAVAILABLE</a>&#160;&#160;&#160;0x00010009</td></tr>
<tr class="memdesc:ga196e125ef261d94184e2b55c05762f14"><td class="mdescLeft">&#160;</td><td class="mdescRight">The requested format is not supported or available.  <a href="#ga196e125ef261d94184e2b55c05762f14">More...</a><br /></td></tr>
<tr class="separator:ga196e125ef261d94184e2b55c05762f14"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gacff24d2757da752ae4c80bf452356487"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gacff24d2757da752ae4c80bf452356487">GLFW_NO_WINDOW_CONTEXT</a>&#160;&#160;&#160;0x0001000A</td></tr>
<tr class="memdesc:gacff24d2757da752ae4c80bf452356487"><td class="mdescLeft">&#160;</td><td class="mdescRight">The specified window does not have an OpenGL or OpenGL ES context.  <a href="#gacff24d2757da752ae4c80bf452356487">More...</a><br /></td></tr>
<tr class="separator:gacff24d2757da752ae4c80bf452356487"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>See <a class="el" href="intro_guide.html#error_handling">error handling</a> for how these are used. </p>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a class="anchor" id="ga56882b290db23261cc6c053c40c2d08e"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_API_UNAVAILABLE&#160;&#160;&#160;0x00010006</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>GLFW could not find support for the requested API on the system.</p>
<dl class="section user"><dt>Analysis</dt><dd>The installed graphics driver does not support the requested API, or does not support it via the chosen context creation backend. Below are a few examples.</dd></dl>
<dl class="section user"><dt></dt><dd>Some pre-installed Windows graphics drivers do not support OpenGL. AMD only supports OpenGL ES via EGL, while Nvidia and Intel only support it via a WGL or GLX extension. OS X does not provide OpenGL ES at all. The Mesa EGL, OpenGL and OpenGL ES libraries do not interface with the Nvidia binary driver. Older graphics drivers do not support Vulkan. </dd></dl>

</div>
</div>
<a class="anchor" id="ga196e125ef261d94184e2b55c05762f14"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_FORMAT_UNAVAILABLE&#160;&#160;&#160;0x00010009</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>If emitted during window creation, the requested pixel format is not supported.</p>
<p>If emitted when querying the clipboard, the contents of the clipboard could not be converted to the requested format.</p>
<dl class="section user"><dt>Analysis</dt><dd>If emitted during window creation, one or more <a class="el" href="window_guide.html#window_hints_hard">hard constraints</a> did not match any of the available pixel formats. If your application is sufficiently flexible, downgrade your requirements and try again. Otherwise, inform the user that their machine does not match your requirements.</dd></dl>
<dl class="section user"><dt></dt><dd>If emitted when querying the clipboard, ignore the error or report it to the user, as appropriate. </dd></dl>

</div>
</div>
<a class="anchor" id="ga76f6bb9c4eea73db675f096b404593ce"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
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          <td class="memname">#define GLFW_INVALID_ENUM&#160;&#160;&#160;0x00010003</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>One of the arguments to the function was an invalid enum value, for example requesting <a class="el" href="window_guide.html#window_hints_fb">GLFW_RED_BITS</a> with <a class="el" href="group__window.html#gacccb29947ea4b16860ebef42c2cb9337">glfwGetWindowAttrib</a>.</p>
<dl class="section user"><dt>Analysis</dt><dd>Application programmer error. Fix the offending call. </dd></dl>

</div>
</div>
<a class="anchor" id="gaaf2ef9aa8202c2b82ac2d921e554c687"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
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          <td class="memname">#define GLFW_INVALID_VALUE&#160;&#160;&#160;0x00010004</td>
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<p>One of the arguments to the function was an invalid value, for example requesting a non-existent OpenGL or OpenGL ES version like 2.7.</p>
<p>Requesting a valid but unavailable OpenGL or OpenGL ES version will instead result in a <a class="el" href="group__errors.html#gad16c5565b4a69f9c2a9ac2c0dbc89462">GLFW_VERSION_UNAVAILABLE</a> error.</p>
<dl class="section user"><dt>Analysis</dt><dd>Application programmer error. Fix the offending call. </dd></dl>

</div>
</div>
<a class="anchor" id="gaa8290386e9528ccb9e42a3a4e16fc0d0"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_NO_CURRENT_CONTEXT&#160;&#160;&#160;0x00010002</td>
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      </table>
</div><div class="memdoc">
<p>This occurs if a GLFW function was called that needs and operates on the current OpenGL or OpenGL ES context but no context is current on the calling thread. One such function is <a class="el" href="group__context.html#ga6d4e0cdf151b5e579bd67f13202994ed">glfwSwapInterval</a>.</p>
<dl class="section user"><dt>Analysis</dt><dd>Application programmer error. Ensure a context is current before calling functions that require a current context. </dd></dl>

</div>
</div>
<a class="anchor" id="gacff24d2757da752ae4c80bf452356487"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_NO_WINDOW_CONTEXT&#160;&#160;&#160;0x0001000A</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>A window that does not have an OpenGL or OpenGL ES context was passed to a function that requires it to have one.</p>
<dl class="section user"><dt>Analysis</dt><dd>Application programmer error. Fix the offending call. </dd></dl>

</div>
</div>
<a class="anchor" id="ga2374ee02c177f12e1fa76ff3ed15e14a"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_NOT_INITIALIZED&#160;&#160;&#160;0x00010001</td>
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      </table>
</div><div class="memdoc">
<p>This occurs if a GLFW function was called that must not be called unless the library is <a class="el" href="intro_guide.html#intro_init">initialized</a>.</p>
<dl class="section user"><dt>Analysis</dt><dd>Application programmer error. Initialize GLFW before calling any function that requires initialization. </dd></dl>

</div>
</div>
<a class="anchor" id="ga9023953a2bcb98c2906afd071d21ee7f"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_OUT_OF_MEMORY&#160;&#160;&#160;0x00010005</td>
        </tr>
      </table>
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<p>A memory allocation failed.</p>
<dl class="section user"><dt>Analysis</dt><dd>A bug in GLFW or the underlying operating system. Report the bug to our <a href="https://github.com/glfw/glfw/issues">issue tracker</a>. </dd></dl>

</div>
</div>
<a class="anchor" id="gad44162d78100ea5e87cdd38426b8c7a1"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_PLATFORM_ERROR&#160;&#160;&#160;0x00010008</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>A platform-specific error occurred that does not match any of the more specific categories.</p>
<dl class="section user"><dt>Analysis</dt><dd>A bug or configuration error in GLFW, the underlying operating system or its drivers, or a lack of required resources. Report the issue to our <a href="https://github.com/glfw/glfw/issues">issue tracker</a>. </dd></dl>

</div>
</div>
<a class="anchor" id="gad16c5565b4a69f9c2a9ac2c0dbc89462"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define GLFW_VERSION_UNAVAILABLE&#160;&#160;&#160;0x00010007</td>
        </tr>
      </table>
</div><div class="memdoc">
<p>The requested OpenGL or OpenGL ES version (including any requested context or framebuffer hints) is not available on this machine.</p>
<dl class="section user"><dt>Analysis</dt><dd>The machine does not support your requirements. If your application is sufficiently flexible, downgrade your requirements and try again. Otherwise, inform the user that their machine does not match your requirements.</dd></dl>
<dl class="section user"><dt></dt><dd>Future invalid OpenGL and OpenGL ES versions, for example OpenGL 4.8 if 5.0 comes out before the 4.x series gets that far, also fail with this error and not <a class="el" href="group__errors.html#gaaf2ef9aa8202c2b82ac2d921e554c687">GLFW_INVALID_VALUE</a>, because GLFW cannot know what future versions will exist. </dd></dl>

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Last update on Thu Aug 18 2016 for GLFW 3.2.1
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