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<div id="projectname">GLFW
 <span id="projectnumber">3.0.2</span>
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<div id="projectbrief">A multi-platform library for OpenGL, window and input</div>
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<div class="title">Input handling</div> </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a>
Modules</h2></td></tr>
<tr class="memitem:group__joysticks"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__joysticks.html">Joysticks</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__keys"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__keys.html">Keyboard keys</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__mods"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__mods.html">Modifier key flags</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:group__buttons"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__buttons.html">Mouse buttons</a></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2"> </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:ga1e008c7a8751cea648c8f42cc91104cf"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga1e008c7a8751cea648c8f42cc91104cf">GLFWmousebuttonfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int, int, int)</td></tr>
<tr class="memdesc:ga1e008c7a8751cea648c8f42cc91104cf"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for mouse button callbacks. <a href="#ga1e008c7a8751cea648c8f42cc91104cf">More...</a><br/></td></tr>
<tr class="separator:ga1e008c7a8751cea648c8f42cc91104cf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga592fbfef76d88f027cb1bc4c36ebd437"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga592fbfef76d88f027cb1bc4c36ebd437">GLFWcursorposfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, double, double)</td></tr>
<tr class="memdesc:ga592fbfef76d88f027cb1bc4c36ebd437"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for cursor position callbacks. <a href="#ga592fbfef76d88f027cb1bc4c36ebd437">More...</a><br/></td></tr>
<tr class="separator:ga592fbfef76d88f027cb1bc4c36ebd437"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga762d898d9b0241d7e3e3b767c6cf318f"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga762d898d9b0241d7e3e3b767c6cf318f">GLFWcursorenterfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int)</td></tr>
<tr class="memdesc:ga762d898d9b0241d7e3e3b767c6cf318f"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for cursor enter/leave callbacks. <a href="#ga762d898d9b0241d7e3e3b767c6cf318f">More...</a><br/></td></tr>
<tr class="separator:ga762d898d9b0241d7e3e3b767c6cf318f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6228cdf94d28fbd3a9a1fbb0e5922a8a"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">GLFWscrollfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, double, double)</td></tr>
<tr class="memdesc:ga6228cdf94d28fbd3a9a1fbb0e5922a8a"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for scroll callbacks. <a href="#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">More...</a><br/></td></tr>
<tr class="separator:ga6228cdf94d28fbd3a9a1fbb0e5922a8a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga592dd1919f8a1dc7576b13cdd8b7b695"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga592dd1919f8a1dc7576b13cdd8b7b695">GLFWkeyfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int, int, int, int)</td></tr>
<tr class="memdesc:ga592dd1919f8a1dc7576b13cdd8b7b695"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for keyboard key callbacks. <a href="#ga592dd1919f8a1dc7576b13cdd8b7b695">More...</a><br/></td></tr>
<tr class="separator:ga592dd1919f8a1dc7576b13cdd8b7b695"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga1103f1876518acecb5976f6b307c51d1"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga1103f1876518acecb5976f6b307c51d1">GLFWcharfun</a> )(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, unsigned int)</td></tr>
<tr class="memdesc:ga1103f1876518acecb5976f6b307c51d1"><td class="mdescLeft"> </td><td class="mdescRight">The function signature for Unicode character callbacks. <a href="#ga1103f1876518acecb5976f6b307c51d1">More...</a><br/></td></tr>
<tr class="separator:ga1103f1876518acecb5976f6b307c51d1"><td class="memSeparator" colspan="2"> </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:gaf5b859dbe19bdf434e42695ea45cc5f4"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gaf5b859dbe19bdf434e42695ea45cc5f4">glfwGetInputMode</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, int mode)</td></tr>
<tr class="memdesc:gaf5b859dbe19bdf434e42695ea45cc5f4"><td class="mdescLeft"> </td><td class="mdescRight">Returns the value of an input option for the specified window. <a href="#gaf5b859dbe19bdf434e42695ea45cc5f4">More...</a><br/></td></tr>
<tr class="separator:gaf5b859dbe19bdf434e42695ea45cc5f4"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa92336e173da9c8834558b54ee80563b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gaa92336e173da9c8834558b54ee80563b">glfwSetInputMode</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, int mode, int value)</td></tr>
<tr class="memdesc:gaa92336e173da9c8834558b54ee80563b"><td class="mdescLeft"> </td><td class="mdescRight">Sets an input option for the specified window. <a href="#gaa92336e173da9c8834558b54ee80563b">More...</a><br/></td></tr>
<tr class="separator:gaa92336e173da9c8834558b54ee80563b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadd341da06bc8d418b4dc3a3518af9ad2"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gadd341da06bc8d418b4dc3a3518af9ad2">glfwGetKey</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, int key)</td></tr>
<tr class="memdesc:gadd341da06bc8d418b4dc3a3518af9ad2"><td class="mdescLeft"> </td><td class="mdescRight">Returns the last reported state of a keyboard key for the specified window. <a href="#gadd341da06bc8d418b4dc3a3518af9ad2">More...</a><br/></td></tr>
<tr class="separator:gadd341da06bc8d418b4dc3a3518af9ad2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gac1473feacb5996c01a7a5a33b5066704"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gac1473feacb5996c01a7a5a33b5066704">glfwGetMouseButton</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, int button)</td></tr>
<tr class="memdesc:gac1473feacb5996c01a7a5a33b5066704"><td class="mdescLeft"> </td><td class="mdescRight">Returns the last reported state of a mouse button for the specified window. <a href="#gac1473feacb5996c01a7a5a33b5066704">More...</a><br/></td></tr>
<tr class="separator:gac1473feacb5996c01a7a5a33b5066704"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga01d37b6c40133676b9cea60ca1d7c0cc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga01d37b6c40133676b9cea60ca1d7c0cc">glfwGetCursorPos</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, double *xpos, double *ypos)</td></tr>
<tr class="memdesc:ga01d37b6c40133676b9cea60ca1d7c0cc"><td class="mdescLeft"> </td><td class="mdescRight">Retrieves the last reported cursor position, relative to the client area of the window. <a href="#ga01d37b6c40133676b9cea60ca1d7c0cc">More...</a><br/></td></tr>
<tr class="separator:ga01d37b6c40133676b9cea60ca1d7c0cc"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga04b03af936d906ca123c8f4ee08b39e7"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga04b03af936d906ca123c8f4ee08b39e7">glfwSetCursorPos</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, double xpos, double ypos)</td></tr>
<tr class="memdesc:ga04b03af936d906ca123c8f4ee08b39e7"><td class="mdescLeft"> </td><td class="mdescRight">Sets the position of the cursor, relative to the client area of the window. <a href="#ga04b03af936d906ca123c8f4ee08b39e7">More...</a><br/></td></tr>
<tr class="separator:ga04b03af936d906ca123c8f4ee08b39e7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7e496507126f35ea72f01b2e6ef6d155"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga592dd1919f8a1dc7576b13cdd8b7b695">GLFWkeyfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga7e496507126f35ea72f01b2e6ef6d155">glfwSetKeyCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga592dd1919f8a1dc7576b13cdd8b7b695">GLFWkeyfun</a> cbfun)</td></tr>
<tr class="memdesc:ga7e496507126f35ea72f01b2e6ef6d155"><td class="mdescLeft"> </td><td class="mdescRight">Sets the key callback. <a href="#ga7e496507126f35ea72f01b2e6ef6d155">More...</a><br/></td></tr>
<tr class="separator:ga7e496507126f35ea72f01b2e6ef6d155"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga556239421c6a5a243c66fca28da9f742"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga1103f1876518acecb5976f6b307c51d1">GLFWcharfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga556239421c6a5a243c66fca28da9f742">glfwSetCharCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga1103f1876518acecb5976f6b307c51d1">GLFWcharfun</a> cbfun)</td></tr>
<tr class="memdesc:ga556239421c6a5a243c66fca28da9f742"><td class="mdescLeft"> </td><td class="mdescRight">Sets the Unicode character callback. <a href="#ga556239421c6a5a243c66fca28da9f742">More...</a><br/></td></tr>
<tr class="separator:ga556239421c6a5a243c66fca28da9f742"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaef49b72d84d615bca0a6ed65485e035d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga1e008c7a8751cea648c8f42cc91104cf">GLFWmousebuttonfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gaef49b72d84d615bca0a6ed65485e035d">glfwSetMouseButtonCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga1e008c7a8751cea648c8f42cc91104cf">GLFWmousebuttonfun</a> cbfun)</td></tr>
<tr class="memdesc:gaef49b72d84d615bca0a6ed65485e035d"><td class="mdescLeft"> </td><td class="mdescRight">Sets the mouse button callback. <a href="#gaef49b72d84d615bca0a6ed65485e035d">More...</a><br/></td></tr>
<tr class="separator:gaef49b72d84d615bca0a6ed65485e035d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga7dad39486f2c7591af7fb25134a2501d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga592fbfef76d88f027cb1bc4c36ebd437">GLFWcursorposfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga7dad39486f2c7591af7fb25134a2501d">glfwSetCursorPosCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga592fbfef76d88f027cb1bc4c36ebd437">GLFWcursorposfun</a> cbfun)</td></tr>
<tr class="memdesc:ga7dad39486f2c7591af7fb25134a2501d"><td class="mdescLeft"> </td><td class="mdescRight">Sets the cursor position callback. <a href="#ga7dad39486f2c7591af7fb25134a2501d">More...</a><br/></td></tr>
<tr class="separator:ga7dad39486f2c7591af7fb25134a2501d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaa299c41dd0a3d171d166354e01279e04"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga762d898d9b0241d7e3e3b767c6cf318f">GLFWcursorenterfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gaa299c41dd0a3d171d166354e01279e04">glfwSetCursorEnterCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga762d898d9b0241d7e3e3b767c6cf318f">GLFWcursorenterfun</a> cbfun)</td></tr>
<tr class="memdesc:gaa299c41dd0a3d171d166354e01279e04"><td class="mdescLeft"> </td><td class="mdescRight">Sets the cursor enter/exit callback. <a href="#gaa299c41dd0a3d171d166354e01279e04">More...</a><br/></td></tr>
<tr class="separator:gaa299c41dd0a3d171d166354e01279e04"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gacf02eb10504352f16efda4593c3ce60e"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__input.html#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">GLFWscrollfun</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gacf02eb10504352f16efda4593c3ce60e">glfwSetScrollCallback</a> (<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *window, <a class="el" href="group__input.html#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">GLFWscrollfun</a> cbfun)</td></tr>
<tr class="memdesc:gacf02eb10504352f16efda4593c3ce60e"><td class="mdescLeft"> </td><td class="mdescRight">Sets the scroll callback. <a href="#gacf02eb10504352f16efda4593c3ce60e">More...</a><br/></td></tr>
<tr class="separator:gacf02eb10504352f16efda4593c3ce60e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaffcbd9ac8ee737fcdd25475123a3c790"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gaffcbd9ac8ee737fcdd25475123a3c790">glfwJoystickPresent</a> (int joy)</td></tr>
<tr class="memdesc:gaffcbd9ac8ee737fcdd25475123a3c790"><td class="mdescLeft"> </td><td class="mdescRight">Returns whether the specified joystick is present. <a href="#gaffcbd9ac8ee737fcdd25475123a3c790">More...</a><br/></td></tr>
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<tr class="memitem:ga6271d46a5901ec2c99601ccf4dd14731"><td class="memItemLeft" align="right" valign="top">const float * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga6271d46a5901ec2c99601ccf4dd14731">glfwGetJoystickAxes</a> (int joy, int *count)</td></tr>
<tr class="memdesc:ga6271d46a5901ec2c99601ccf4dd14731"><td class="mdescLeft"> </td><td class="mdescRight">Returns the values of all axes of the specified joystick. <a href="#ga6271d46a5901ec2c99601ccf4dd14731">More...</a><br/></td></tr>
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<tr class="memitem:gace54cd930dcd502e118fe4021384ce1b"><td class="memItemLeft" align="right" valign="top">const unsigned char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gace54cd930dcd502e118fe4021384ce1b">glfwGetJoystickButtons</a> (int joy, int *count)</td></tr>
<tr class="memdesc:gace54cd930dcd502e118fe4021384ce1b"><td class="mdescLeft"> </td><td class="mdescRight">Returns the state of all buttons of the specified joystick. <a href="#gace54cd930dcd502e118fe4021384ce1b">More...</a><br/></td></tr>
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<tr class="memitem:gac8d7f6107e05cfd106cfba973ab51e19"><td class="memItemLeft" align="right" valign="top">const char * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gac8d7f6107e05cfd106cfba973ab51e19">glfwGetJoystickName</a> (int joy)</td></tr>
<tr class="memdesc:gac8d7f6107e05cfd106cfba973ab51e19"><td class="mdescLeft"> </td><td class="mdescRight">Returns the name of the specified joystick. <a href="#gac8d7f6107e05cfd106cfba973ab51e19">More...</a><br/></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
Key and button actions</h2></td></tr>
<tr class="memitem:gada11d965c4da13090ad336e030e4d11f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gada11d965c4da13090ad336e030e4d11f">GLFW_RELEASE</a>   0</td></tr>
<tr class="memdesc:gada11d965c4da13090ad336e030e4d11f"><td class="mdescLeft"> </td><td class="mdescRight">The key or button was released. <a href="#gada11d965c4da13090ad336e030e4d11f">More...</a><br/></td></tr>
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<tr class="memitem:ga2485743d0b59df3791c45951c4195265"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#ga2485743d0b59df3791c45951c4195265">GLFW_PRESS</a>   1</td></tr>
<tr class="memdesc:ga2485743d0b59df3791c45951c4195265"><td class="mdescLeft"> </td><td class="mdescRight">The key or button was pressed. <a href="#ga2485743d0b59df3791c45951c4195265">More...</a><br/></td></tr>
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<tr class="memitem:gac96fd3b9fc66c6f0eebaf6532595338f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__input.html#gac96fd3b9fc66c6f0eebaf6532595338f">GLFW_REPEAT</a>   2</td></tr>
<tr class="memdesc:gac96fd3b9fc66c6f0eebaf6532595338f"><td class="mdescLeft"> </td><td class="mdescRight">The key was held down until it repeated. <a href="#gac96fd3b9fc66c6f0eebaf6532595338f">More...</a><br/></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Macro Definition Documentation</h2>
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<td class="memname">#define GLFW_PRESS   1</td>
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<td class="memname">#define GLFW_RELEASE   0</td>
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<td class="memname">#define GLFW_REPEAT   2</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* GLFWcharfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, unsigned int)</td>
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<p>This is the function signature for Unicode character callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">character</td><td>The Unicode code point of the character.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#ga556239421c6a5a243c66fca28da9f742" title="Sets the Unicode character callback.">glfwSetCharCallback</a> </dd></dl>
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<td class="memname">typedef void(* GLFWcursorenterfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int)</td>
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<p>This is the function signature for cursor enter/leave callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">entered</td><td><code>GL_TRUE</code> if the cursor entered the window's client area, or <code>GL_FALSE</code> if it left it.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#gaa299c41dd0a3d171d166354e01279e04" title="Sets the cursor enter/exit callback.">glfwSetCursorEnterCallback</a> </dd></dl>
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<td class="memname">typedef void(* GLFWcursorposfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, double, double)</td>
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<p>This is the function signature for cursor position callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">xpos</td><td>The new x-coordinate of the cursor. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ypos</td><td>The new y-coordinate of the cursor.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#ga7dad39486f2c7591af7fb25134a2501d" title="Sets the cursor position callback.">glfwSetCursorPosCallback</a> </dd></dl>
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<td class="memname">typedef void(* GLFWkeyfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int, int, int, int)</td>
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<p>This is the function signature for keyboard key callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">key</td><td>The <a class="el" href="group__keys.html">keyboard key</a> that was pressed or released. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">scancode</td><td>The system-specific scancode of the key. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">action</td><td><a class="el" href="group__input.html#ga2485743d0b59df3791c45951c4195265">GLFW_PRESS</a>, <a class="el" href="group__input.html#gada11d965c4da13090ad336e030e4d11f">GLFW_RELEASE</a> or <a class="el" href="group__input.html#gac96fd3b9fc66c6f0eebaf6532595338f">GLFW_REPEAT</a>. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">mods</td><td>Bit field describing which <a class="el" href="group__mods.html">modifier keys</a> were held down.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#ga7e496507126f35ea72f01b2e6ef6d155" title="Sets the key callback.">glfwSetKeyCallback</a> </dd></dl>
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<td class="memname">typedef void(* GLFWmousebuttonfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, int, int, int)</td>
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<p>This is the function signature for mouse button callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">button</td><td>The <a class="el" href="group__buttons.html">mouse button</a> that was pressed or released. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">action</td><td>One of <code>GLFW_PRESS</code> or <code>GLFW_RELEASE</code>. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">mods</td><td>Bit field describing which <a class="el" href="group__mods.html">modifier keys</a> were held down.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#gaef49b72d84d615bca0a6ed65485e035d" title="Sets the mouse button callback.">glfwSetMouseButtonCallback</a> </dd></dl>
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<td class="memname">typedef void(* GLFWscrollfun)(<a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> *, double, double)</td>
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<p>This is the function signature for scroll callback functions.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window that received the event. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">xoffset</td><td>The scroll offset along the x-axis. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">yoffset</td><td>The scroll offset along the y-axis.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#gacf02eb10504352f16efda4593c3ce60e" title="Sets the scroll callback.">glfwSetScrollCallback</a> </dd></dl>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void glfwGetCursorPos </td>
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<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
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<td class="paramtype">double * </td>
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<p>This function returns the last reported position of the cursor to the specified window.</p>
<p>If the cursor is disabled (with <code>GLFW_CURSOR_DISABLED</code>) then the cursor position is unbounded and limited only by the minimum and maximum values of a <code>double</code>.</p>
<p>The coordinate can be converted to their integer equivalents with the <code>floor</code> function. Casting directly to an integer type works for positive coordinates, but fails for negative ones.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The desired window. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">xpos</td><td>Where to store the cursor x-coordinate, relative to the left edge of the client area, or <code>NULL</code>. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">ypos</td><td>Where to store the cursor y-coordinate, relative to the to top edge of the client area, or <code>NULL</code>.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#ga04b03af936d906ca123c8f4ee08b39e7" title="Sets the position of the cursor, relative to the client area of the window.">glfwSetCursorPos</a> </dd></dl>
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<td class="memname">int glfwGetInputMode </td>
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<td class="paramname"><em>window</em>, </td>
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<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window to query. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">mode</td><td>One of <code>GLFW_CURSOR</code>, <code>GLFW_STICKY_KEYS</code> or <code>GLFW_STICKY_MOUSE_BUTTONS</code>.</td></tr>
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<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#gaa92336e173da9c8834558b54ee80563b" title="Sets an input option for the specified window.">glfwSetInputMode</a> </dd></dl>
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<td class="memname">const float* glfwGetJoystickAxes </td>
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<td class="paramtype">int </td>
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<p>This function returns the values of all axes of the specified joystick.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">joy</td><td>The joystick to query. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">count</td><td>Where to store the size of the returned array. This is set to zero if an error occurred. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>An array of axis values, or <code>NULL</code> if the joystick is not present.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>The returned array is allocated and freed by GLFW. You should not free it yourself.</dd>
<dd>
The returned array is valid only until the next call to <a class="el" href="group__input.html#ga6271d46a5901ec2c99601ccf4dd14731">glfwGetJoystickAxes</a> for that joystick. </dd></dl>
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<td class="memname">const unsigned char* glfwGetJoystickButtons </td>
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<td class="paramtype">int </td>
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<p>This function returns the state of all buttons of the specified joystick.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">joy</td><td>The joystick to query. </td></tr>
<tr><td class="paramdir">[out]</td><td class="paramname">count</td><td>Where to store the size of the returned array. This is set to zero if an error occurred. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>An array of button states, or <code>NULL</code> if the joystick is not present.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>The returned array is allocated and freed by GLFW. You should not free it yourself.</dd>
<dd>
The returned array is valid only until the next call to <a class="el" href="group__input.html#gace54cd930dcd502e118fe4021384ce1b">glfwGetJoystickButtons</a> for that joystick. </dd></dl>
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<td class="memname">const char* glfwGetJoystickName </td>
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<p>This function returns the name, encoded as UTF-8, of the specified joystick.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">joy</td><td>The joystick to query. </td></tr>
</table>
</dd>
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<dl class="section return"><dt>Returns</dt><dd>The UTF-8 encoded name of the joystick, or <code>NULL</code> if the joystick is not present.</dd></dl>
<dl class="section note"><dt>Note</dt><dd>The returned string is allocated and freed by GLFW. You should not free it yourself.</dd>
<dd>
The returned string is valid only until the next call to <a class="el" href="group__input.html#gac8d7f6107e05cfd106cfba973ab51e19">glfwGetJoystickName</a> for that joystick. </dd></dl>
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<td class="memname">int glfwGetKey </td>
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<p>This function returns the last state reported for the specified key to the specified window. The returned state is one of <code>GLFW_PRESS</code> or <code>GLFW_RELEASE</code>. The higher-level state <code>GLFW_REPEAT</code> is only reported to the key callback.</p>
<p>If the <code>GLFW_STICKY_KEYS</code> input mode is enabled, this function returns <code>GLFW_PRESS</code> the first time you call this function after a key has been pressed, even if the key has already been released.</p>
<p>The key functions deal with physical keys, with <a class="el" href="group__keys.html">key tokens</a> named after their use on the standard US keyboard layout. If you want to input text, use the Unicode character callback instead.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The desired window. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">key</td><td>The desired <a class="el" href="group__keys.html">keyboard key</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>One of <code>GLFW_PRESS</code> or <code>GLFW_RELEASE</code>.</dd></dl>
<dl class="section note"><dt>Note</dt><dd><code>GLFW_KEY_UNKNOWN</code> is not a valid key for this function. </dd></dl>
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<td class="memname">int glfwGetMouseButton </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>button</em> </td>
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<p>This function returns the last state reported for the specified mouse button to the specified window.</p>
<p>If the <code>GLFW_STICKY_MOUSE_BUTTONS</code> input mode is enabled, this function returns <code>GLFW_PRESS</code> the first time you call this function after a mouse button has been pressed, even if the mouse button has already been released.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The desired window. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">button</td><td>The desired <a class="el" href="group__buttons.html">mouse button</a>. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>One of <code>GLFW_PRESS</code> or <code>GLFW_RELEASE</code>. </dd></dl>
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<td class="memname">int glfwJoystickPresent </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>joy</em></td><td>)</td>
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<p>This function returns whether the specified joystick is present.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">joy</td><td>The joystick to query. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>GL_TRUE</code> if the joystick is present, or <code>GL_FALSE</code> otherwise. </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga1103f1876518acecb5976f6b307c51d1">GLFWcharfun</a> glfwSetCharCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__input.html#ga1103f1876518acecb5976f6b307c51d1">GLFWcharfun</a> </td>
<td class="paramname"><em>cbfun</em> </td>
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<p>This function sets the character callback of the specific window, which is called when a Unicode character is input.</p>
<p>The character callback is intended for text input. If you want to know whether a specific key was pressed or released, use the <a class="el" href="group__input.html#ga7e496507126f35ea72f01b2e6ef6d155">key callback</a> instead.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<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>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga762d898d9b0241d7e3e3b767c6cf318f">GLFWcursorenterfun</a> glfwSetCursorEnterCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<tr>
<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="group__input.html#ga762d898d9b0241d7e3e3b767c6cf318f">GLFWcursorenterfun</a> </td>
<td class="paramname"><em>cbfun</em> </td>
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<p>This function sets the cursor boundary crossing callback of the specified window, which is called when the cursor enters or leaves the client area of the window.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<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>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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<td class="memname">void glfwSetCursorPos </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>xpos</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
<td class="paramname"><em>ypos</em> </td>
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<p>This function sets the position of the cursor. The specified window must be focused. If the window does not have focus when this function is called, it fails silently.</p>
<p>If the cursor is disabled (with <code>GLFW_CURSOR_DISABLED</code>) then the cursor position is unbounded and limited only by the minimum and maximum values of a <code>double</code>.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The desired window. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">xpos</td><td>The desired x-coordinate, relative to the left edge of the client area, or <code>NULL</code>. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">ypos</td><td>The desired y-coordinate, relative to the top edge of the client area, or <code>NULL</code>.</td></tr>
</table>
</dd>
</dl>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#ga01d37b6c40133676b9cea60ca1d7c0cc" title="Retrieves the last reported cursor position, relative to the client area of the window.">glfwGetCursorPos</a> </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga592fbfef76d88f027cb1bc4c36ebd437">GLFWcursorposfun</a> glfwSetCursorPosCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__input.html#ga592fbfef76d88f027cb1bc4c36ebd437">GLFWcursorposfun</a> </td>
<td class="paramname"><em>cbfun</em> </td>
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<p>This function sets the cursor position callback of the specified window, which is called when the cursor is moved. The callback is provided with the position relative to the upper-left corner of the client area of the window.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<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>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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<td class="memname">void glfwSetInputMode </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>mode</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>value</em> </td>
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<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose input mode to set. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">mode</td><td>One of <code>GLFW_CURSOR</code>, <code>GLFW_STICKY_KEYS</code> or <code>GLFW_STICKY_MOUSE_BUTTONS</code>. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">value</td><td>The new value of the specified input mode.</td></tr>
</table>
</dd>
</dl>
<p>If <code>mode</code> is <code>GLFW_CURSOR</code>, the value must be one of the supported input modes:</p>
<ul>
<li><code>GLFW_CURSOR_NORMAL</code> makes the cursor visible and behaving normally.</li>
<li><code>GLFW_CURSOR_HIDDEN</code> makes the cursor invisible when it is over the client area of the window.</li>
<li><code>GLFW_CURSOR_DISABLED</code> disables the cursor and removes any limitations on cursor movement.</li>
</ul>
<p>If <code>mode</code> is <code>GLFW_STICKY_KEYS</code>, the value must be either <code>GL_TRUE</code> to enable sticky keys, or <code>GL_FALSE</code> to disable it. If sticky keys are enabled, a key press will ensure that <a class="el" href="group__input.html#gadd341da06bc8d418b4dc3a3518af9ad2">glfwGetKey</a> returns <a class="el" href="group__input.html#ga2485743d0b59df3791c45951c4195265">GLFW_PRESS</a> the next time it is called even if the key had been released before the call. This is useful when you are only interested in whether keys have been pressed but not when or in which order.</p>
<p>If <code>mode</code> is <code>GLFW_STICKY_MOUSE_BUTTONS</code>, the value must be either <code>GL_TRUE</code> to enable sticky mouse buttons, or <code>GL_FALSE</code> to disable it. If sticky mouse buttons are enabled, a mouse button press will ensure that <a class="el" href="group__input.html#gac1473feacb5996c01a7a5a33b5066704">glfwGetMouseButton</a> returns <a class="el" href="group__input.html#ga2485743d0b59df3791c45951c4195265">GLFW_PRESS</a> the next time it is called even if the mouse button had been released before the call. This is useful when you are only interested in whether mouse buttons have been pressed but not when or in which order.</p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__input.html#gaf5b859dbe19bdf434e42695ea45cc5f4" title="Returns the value of an input option for the specified window.">glfwGetInputMode</a> </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga592dd1919f8a1dc7576b13cdd8b7b695">GLFWkeyfun</a> glfwSetKeyCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__input.html#ga592dd1919f8a1dc7576b13cdd8b7b695">GLFWkeyfun</a> </td>
<td class="paramname"><em>cbfun</em> </td>
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<p>This function sets the key callback of the specific window, which is called when a key is pressed, repeated or released.</p>
<p>The key functions deal with physical keys, with layout independent <a class="el" href="group__keys.html">key tokens</a> named after their values in the standard US keyboard layout. If you want to input text, use the <a class="el" href="group__input.html#ga556239421c6a5a243c66fca28da9f742">character callback</a> instead.</p>
<p>When a window loses focus, it will generate synthetic key release events for all pressed keys. You can tell these events from user-generated events by the fact that the synthetic ones are generated after the window has lost focus, i.e. <code>GLFW_FOCUSED</code> will be false and the focus callback will have already been called.</p>
<p>The scancode of a key is specific to that platform or sometimes even to that machine. Scancodes are intended to allow users to bind keys that don't have a GLFW key token. Such keys have <code>key</code> set to <code>GLFW_KEY_UNKNOWN</code>, their state is not saved and so it cannot be retrieved with <a class="el" href="group__input.html#gadd341da06bc8d418b4dc3a3518af9ad2">glfwGetKey</a>.</p>
<p>Sometimes GLFW needs to generate synthetic key events, in which case the scancode may be zero.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">cbfun</td><td>The new key callback, or <code>NULL</code> to remove the currently set callback. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga1e008c7a8751cea648c8f42cc91104cf">GLFWmousebuttonfun</a> glfwSetMouseButtonCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__input.html#ga1e008c7a8751cea648c8f42cc91104cf">GLFWmousebuttonfun</a> </td>
<td class="paramname"><em>cbfun</em> </td>
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<p>This function sets the mouse button callback of the specified window, which is called when a mouse button is pressed or released.</p>
<p>When a window loses focus, it will generate synthetic mouse button release events for all pressed mouse buttons. You can tell these events from user-generated events by the fact that the synthetic ones are generated after the window has lost focus, i.e. <code>GLFW_FOCUSED</code> will be false and the focus callback will have already been called.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<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>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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<td class="memname"><a class="el" href="group__input.html#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">GLFWscrollfun</a> glfwSetScrollCallback </td>
<td>(</td>
<td class="paramtype"><a class="el" href="group__window.html#ga3c96d80d363e67d13a41b5d1821f3242">GLFWwindow</a> * </td>
<td class="paramname"><em>window</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="group__input.html#ga6228cdf94d28fbd3a9a1fbb0e5922a8a">GLFWscrollfun</a> </td>
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<p>This function sets the scroll callback of the specified window, which is called when a scrolling device is used, such as a mouse wheel or scrolling area of a touchpad.</p>
<p>The scroll callback receives all scrolling input, like that from a mouse wheel or a touchpad scrolling area.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">window</td><td>The window whose callback to set. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">cbfun</td><td>The new scroll callback, or <code>NULL</code> to remove the currently set callback. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The previously set callback, or <code>NULL</code> if no callback was set or an error occurred. </dd></dl>
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