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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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<div class="contents">
<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
<p >See <a class="el" href="intro_guide.html#error_handling">error handling</a> for how these are used. </p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="define-members" name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:gafa30deee5db4d69c4c93d116ed87dbf4"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gafa30deee5db4d69c4c93d116ed87dbf4">GLFW_NO_ERROR</a>   0</td></tr>
<tr class="memdesc:gafa30deee5db4d69c4c93d116ed87dbf4"><td class="mdescLeft"> </td><td class="mdescRight">No error has occurred. <a href="group__errors.html#gafa30deee5db4d69c4c93d116ed87dbf4">More...</a><br /></td></tr>
<tr class="separator:gafa30deee5db4d69c4c93d116ed87dbf4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">GLFW_NOT_INITIALIZED</a>   0x00010001</td></tr>
<tr class="memdesc:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="mdescLeft"> </td><td class="mdescRight">GLFW has not been initialized. <a href="group__errors.html#ga2374ee02c177f12e1fa76ff3ed15e14a">More...</a><br /></td></tr>
<tr class="separator:ga2374ee02c177f12e1fa76ff3ed15e14a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gaa8290386e9528ccb9e42a3a4e16fc0d0">GLFW_NO_CURRENT_CONTEXT</a>   0x00010002</td></tr>
<tr class="memdesc:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="mdescLeft"> </td><td class="mdescRight">No context is current for this thread. <a href="group__errors.html#gaa8290386e9528ccb9e42a3a4e16fc0d0">More...</a><br /></td></tr>
<tr class="separator:gaa8290386e9528ccb9e42a3a4e16fc0d0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga76f6bb9c4eea73db675f096b404593ce"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga76f6bb9c4eea73db675f096b404593ce">GLFW_INVALID_ENUM</a>   0x00010003</td></tr>
<tr class="memdesc:ga76f6bb9c4eea73db675f096b404593ce"><td class="mdescLeft"> </td><td class="mdescRight">One of the arguments to the function was an invalid enum value. <a href="group__errors.html#ga76f6bb9c4eea73db675f096b404593ce">More...</a><br /></td></tr>
<tr class="separator:ga76f6bb9c4eea73db675f096b404593ce"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gaaf2ef9aa8202c2b82ac2d921e554c687">GLFW_INVALID_VALUE</a>   0x00010004</td></tr>
<tr class="memdesc:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="mdescLeft"> </td><td class="mdescRight">One of the arguments to the function was an invalid value. <a href="group__errors.html#gaaf2ef9aa8202c2b82ac2d921e554c687">More...</a><br /></td></tr>
<tr class="separator:gaaf2ef9aa8202c2b82ac2d921e554c687"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga9023953a2bcb98c2906afd071d21ee7f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga9023953a2bcb98c2906afd071d21ee7f">GLFW_OUT_OF_MEMORY</a>   0x00010005</td></tr>
<tr class="memdesc:ga9023953a2bcb98c2906afd071d21ee7f"><td class="mdescLeft"> </td><td class="mdescRight">A memory allocation failed. <a href="group__errors.html#ga9023953a2bcb98c2906afd071d21ee7f">More...</a><br /></td></tr>
<tr class="separator:ga9023953a2bcb98c2906afd071d21ee7f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga56882b290db23261cc6c053c40c2d08e"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga56882b290db23261cc6c053c40c2d08e">GLFW_API_UNAVAILABLE</a>   0x00010006</td></tr>
<tr class="memdesc:ga56882b290db23261cc6c053c40c2d08e"><td class="mdescLeft"> </td><td class="mdescRight">GLFW could not find support for the requested API on the system. <a href="group__errors.html#ga56882b290db23261cc6c053c40c2d08e">More...</a><br /></td></tr>
<tr class="separator:ga56882b290db23261cc6c053c40c2d08e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gad16c5565b4a69f9c2a9ac2c0dbc89462">GLFW_VERSION_UNAVAILABLE</a>   0x00010007</td></tr>
<tr class="memdesc:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="mdescLeft"> </td><td class="mdescRight">The requested OpenGL or OpenGL ES version is not available. <a href="group__errors.html#gad16c5565b4a69f9c2a9ac2c0dbc89462">More...</a><br /></td></tr>
<tr class="separator:gad16c5565b4a69f9c2a9ac2c0dbc89462"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad44162d78100ea5e87cdd38426b8c7a1"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">GLFW_PLATFORM_ERROR</a>   0x00010008</td></tr>
<tr class="memdesc:gad44162d78100ea5e87cdd38426b8c7a1"><td class="mdescLeft"> </td><td class="mdescRight">A platform-specific error occurred that does not match any of the more specific categories. <a href="group__errors.html#gad44162d78100ea5e87cdd38426b8c7a1">More...</a><br /></td></tr>
<tr class="separator:gad44162d78100ea5e87cdd38426b8c7a1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga196e125ef261d94184e2b55c05762f14"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#ga196e125ef261d94184e2b55c05762f14">GLFW_FORMAT_UNAVAILABLE</a>   0x00010009</td></tr>
<tr class="memdesc:ga196e125ef261d94184e2b55c05762f14"><td class="mdescLeft"> </td><td class="mdescRight">The requested format is not supported or available. <a href="group__errors.html#ga196e125ef261d94184e2b55c05762f14">More...</a><br /></td></tr>
<tr class="separator:ga196e125ef261d94184e2b55c05762f14"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gacff24d2757da752ae4c80bf452356487"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__errors.html#gacff24d2757da752ae4c80bf452356487">GLFW_NO_WINDOW_CONTEXT</a>   0x0001000A</td></tr>
<tr class="memdesc:gacff24d2757da752ae4c80bf452356487"><td class="mdescLeft"> </td><td class="mdescRight">The specified window does not have an OpenGL or OpenGL ES context. <a href="group__errors.html#gacff24d2757da752ae4c80bf452356487">More...</a><br /></td></tr>
<tr class="separator:gacff24d2757da752ae4c80bf452356487"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="gafa30deee5db4d69c4c93d116ed87dbf4" name="gafa30deee5db4d69c4c93d116ed87dbf4"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gafa30deee5db4d69c4c93d116ed87dbf4">◆ </a></span>GLFW_NO_ERROR</h2>
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<td class="memname">#define GLFW_NO_ERROR   0</td>
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<p >No error has occurred.</p>
<dl class="section user"><dt>Analysis</dt><dd>Yay. </dd></dl>
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<a id="ga2374ee02c177f12e1fa76ff3ed15e14a" name="ga2374ee02c177f12e1fa76ff3ed15e14a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga2374ee02c177f12e1fa76ff3ed15e14a">◆ </a></span>GLFW_NOT_INITIALIZED</h2>
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<td class="memname">#define GLFW_NOT_INITIALIZED   0x00010001</td>
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<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>
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<a id="gaa8290386e9528ccb9e42a3a4e16fc0d0" name="gaa8290386e9528ccb9e42a3a4e16fc0d0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaa8290386e9528ccb9e42a3a4e16fc0d0">◆ </a></span>GLFW_NO_CURRENT_CONTEXT</h2>
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<td class="memname">#define GLFW_NO_CURRENT_CONTEXT   0x00010002</td>
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<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>
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<a id="ga76f6bb9c4eea73db675f096b404593ce" name="ga76f6bb9c4eea73db675f096b404593ce"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga76f6bb9c4eea73db675f096b404593ce">◆ </a></span>GLFW_INVALID_ENUM</h2>
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<td class="memname">#define GLFW_INVALID_ENUM   0x00010003</td>
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<p >One of the arguments to the function was an invalid enum value, for example requesting <a class="el" href="window_guide.html#GLFW_RED_BITS">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>
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<a id="gaaf2ef9aa8202c2b82ac2d921e554c687" name="gaaf2ef9aa8202c2b82ac2d921e554c687"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gaaf2ef9aa8202c2b82ac2d921e554c687">◆ </a></span>GLFW_INVALID_VALUE</h2>
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<td class="memname">#define GLFW_INVALID_VALUE   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>
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<a id="ga9023953a2bcb98c2906afd071d21ee7f" name="ga9023953a2bcb98c2906afd071d21ee7f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga9023953a2bcb98c2906afd071d21ee7f">◆ </a></span>GLFW_OUT_OF_MEMORY</h2>
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<td class="memname">#define GLFW_OUT_OF_MEMORY   0x00010005</td>
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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>
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<a id="ga56882b290db23261cc6c053c40c2d08e" name="ga56882b290db23261cc6c053c40c2d08e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga56882b290db23261cc6c053c40c2d08e">◆ </a></span>GLFW_API_UNAVAILABLE</h2>
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<td class="memname">#define GLFW_API_UNAVAILABLE   0x00010006</td>
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<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. macOS 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>
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<a id="gad16c5565b4a69f9c2a9ac2c0dbc89462" name="gad16c5565b4a69f9c2a9ac2c0dbc89462"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gad16c5565b4a69f9c2a9ac2c0dbc89462">◆ </a></span>GLFW_VERSION_UNAVAILABLE</h2>
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<td class="memname">#define GLFW_VERSION_UNAVAILABLE   0x00010007</td>
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<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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<a id="gad44162d78100ea5e87cdd38426b8c7a1" name="gad44162d78100ea5e87cdd38426b8c7a1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gad44162d78100ea5e87cdd38426b8c7a1">◆ </a></span>GLFW_PLATFORM_ERROR</h2>
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<td class="memname">#define GLFW_PLATFORM_ERROR   0x00010008</td>
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<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>
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<a id="ga196e125ef261d94184e2b55c05762f14" name="ga196e125ef261d94184e2b55c05762f14"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga196e125ef261d94184e2b55c05762f14">◆ </a></span>GLFW_FORMAT_UNAVAILABLE</h2>
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<td class="memname">#define GLFW_FORMAT_UNAVAILABLE   0x00010009</td>
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<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>
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<h2 class="memtitle"><span class="permalink"><a href="#gacff24d2757da752ae4c80bf452356487">◆ </a></span>GLFW_NO_WINDOW_CONTEXT</h2>
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<td class="memname">#define GLFW_NO_WINDOW_CONTEXT   0x0001000A</td>
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<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>
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Last update on Fri Jul 22 2022 for GLFW 3.3.8
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