mirror of
https://github.com/glfw/glfw.git
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542 lines
17 KiB
Objective-C
542 lines
17 KiB
Objective-C
/*************************************************************************
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* GLFW 3.4 - www.glfw.org
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* A library for OpenGL, window and input
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*------------------------------------------------------------------------
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* Copyright (c) 2002-2006 Marcus Geelnard
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* Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would
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* be appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not
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* be misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*
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*************************************************************************/
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#ifndef _glfw3_native_h_
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#define _glfw3_native_h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*************************************************************************
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* Doxygen documentation
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*************************************************************************/
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/*! @file glfw3native.h
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* @brief The header of the native access functions.
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*
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* This is the header file of the native access functions. See @ref native for
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* more information.
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*/
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/*! @defgroup native Native access
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* @brief Functions related to accessing native handles.
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*
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* **By using the native access functions you assert that you know what you're
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* doing and how to fix problems caused by using them. If you don't, you
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* shouldn't be using them.**
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*
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* Before the inclusion of @ref glfw3native.h, you may define zero or more
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* window system API macro and zero or more context creation API macros.
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*
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* The chosen backends must match those the library was compiled for. Failure
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* to do this will cause a link-time error.
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*
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* The available window API macros are:
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* * `GLFW_EXPOSE_NATIVE_WIN32`
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* * `GLFW_EXPOSE_NATIVE_COCOA`
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* * `GLFW_EXPOSE_NATIVE_X11`
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* * `GLFW_EXPOSE_NATIVE_WAYLAND`
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*
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* The available context API macros are:
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* * `GLFW_EXPOSE_NATIVE_WGL`
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* * `GLFW_EXPOSE_NATIVE_NSGL`
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* * `GLFW_EXPOSE_NATIVE_GLX`
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* * `GLFW_EXPOSE_NATIVE_EGL`
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* * `GLFW_EXPOSE_NATIVE_OSMESA`
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*
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* These macros select which of the native access functions that are declared
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* and which platform-specific headers to include. It is then up your (by
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* definition platform-specific) code to handle which of these should be
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* defined.
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*/
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/*************************************************************************
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* System headers and types
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*************************************************************************/
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#if defined(GLFW_EXPOSE_NATIVE_WIN32) || defined(GLFW_EXPOSE_NATIVE_WGL)
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// This is a workaround for the fact that glfw3.h needs to export APIENTRY (for
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// example to allow applications to correctly declare a GL_KHR_debug callback)
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// but windows.h assumes no one will define APIENTRY before it does
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#if defined(GLFW_APIENTRY_DEFINED)
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#undef APIENTRY
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#undef GLFW_APIENTRY_DEFINED
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#endif
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#include <windows.h>
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#elif defined(GLFW_EXPOSE_NATIVE_COCOA) || defined(GLFW_EXPOSE_NATIVE_NSGL)
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#if defined(__OBJC__)
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#import <Cocoa/Cocoa.h>
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#else
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#include <ApplicationServices/ApplicationServices.h>
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typedef void* id;
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#endif
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#elif defined(GLFW_EXPOSE_NATIVE_X11) || defined(GLFW_EXPOSE_NATIVE_GLX)
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#include <X11/Xlib.h>
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#include <X11/extensions/Xrandr.h>
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#elif defined(GLFW_EXPOSE_NATIVE_WAYLAND)
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#include <wayland-client.h>
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_WGL)
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/* WGL is declared by windows.h */
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_NSGL)
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/* NSGL is declared by Cocoa.h */
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_GLX)
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#include <GL/glx.h>
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_EGL)
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#include <EGL/egl.h>
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
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#include <GL/osmesa.h>
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#endif
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/*************************************************************************
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* Functions
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*************************************************************************/
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#if defined(GLFW_EXPOSE_NATIVE_WIN32)
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/*! @brief Returns the adapter device name of the specified monitor.
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*
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* @return The UTF-8 encoded adapter device name (for example `\\.\DISPLAY1`)
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* of the specified monitor, or `NULL` if an [error](@ref error_handling)
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* occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.1.
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*
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* @ingroup native
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*/
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GLFWAPI const char* glfwGetWin32Adapter(GLFWmonitor* monitor);
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/*! @brief Returns the display device name of the specified monitor.
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*
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* @return The UTF-8 encoded display device name (for example
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* `\\.\DISPLAY1\Monitor0`) of the specified monitor, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.1.
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*
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* @ingroup native
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*/
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GLFWAPI const char* glfwGetWin32Monitor(GLFWmonitor* monitor);
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/*! @brief Returns the `HWND` of the specified window.
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*
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* @return The `HWND` of the specified window, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @remark The `HDC` associated with the window can be queried with the
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* [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
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* function.
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* @code
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* HDC dc = GetDC(glfwGetWin32Window(window));
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* @endcode
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* This DC is private and does not need to be released.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI HWND glfwGetWin32Window(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_WGL)
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/*! @brief Returns the `HGLRC` of the specified window.
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*
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* @return The `HGLRC` of the specified window, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @remark The `HDC` associated with the window can be queried with the
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* [GetDC](https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getdc)
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* function.
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* @code
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* HDC dc = GetDC(glfwGetWin32Window(window));
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* @endcode
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* This DC is private and does not need to be released.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_COCOA)
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/*! @brief Returns the `CGDirectDisplayID` of the specified monitor.
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*
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* @return The `CGDirectDisplayID` of the specified monitor, or
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* `kCGNullDirectDisplay` if an [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.1.
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*
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* @ingroup native
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*/
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GLFWAPI CGDirectDisplayID glfwGetCocoaMonitor(GLFWmonitor* monitor);
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/*! @brief Returns the `NSWindow` of the specified window.
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*
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* @return The `NSWindow` of the specified window, or `nil` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI id glfwGetCocoaWindow(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_NSGL)
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/*! @brief Returns the `NSOpenGLContext` of the specified window.
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*
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* @return The `NSOpenGLContext` of the specified window, or `nil` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI id glfwGetNSGLContext(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_X11)
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/*! @brief Returns the `Display` used by GLFW.
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*
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* @return The `Display` used by GLFW, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI Display* glfwGetX11Display(void);
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/*! @brief Returns the `RRCrtc` of the specified monitor.
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*
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* @return The `RRCrtc` of the specified monitor, or `None` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.1.
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*
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* @ingroup native
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*/
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GLFWAPI RRCrtc glfwGetX11Adapter(GLFWmonitor* monitor);
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/*! @brief Returns the `RROutput` of the specified monitor.
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*
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* @return The `RROutput` of the specified monitor, or `None` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.1.
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*
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* @ingroup native
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*/
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GLFWAPI RROutput glfwGetX11Monitor(GLFWmonitor* monitor);
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/*! @brief Returns the `Window` of the specified window.
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*
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* @return The `Window` of the specified window, or `None` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI Window glfwGetX11Window(GLFWwindow* window);
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/*! @brief Sets the current primary selection to the specified string.
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*
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* @param[in] string A UTF-8 encoded string.
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*
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* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
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* GLFW_PLATFORM_ERROR.
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*
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* @pointer_lifetime The specified string is copied before this function
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* returns.
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*
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* @thread_safety This function must only be called from the main thread.
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*
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* @sa @ref clipboard
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* @sa glfwGetX11SelectionString
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* @sa glfwSetClipboardString
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*
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* @since Added in version 3.3.
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*
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* @ingroup native
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*/
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GLFWAPI void glfwSetX11SelectionString(const char* string);
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/*! @brief Returns the contents of the current primary selection as a string.
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*
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* If the selection is empty or if its contents cannot be converted, `NULL`
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* is returned and a @ref GLFW_FORMAT_UNAVAILABLE error is generated.
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*
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* @return The contents of the selection as a UTF-8 encoded string, or `NULL`
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* if an [error](@ref error_handling) occurred.
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*
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* @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
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* GLFW_PLATFORM_ERROR.
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*
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* @pointer_lifetime The returned string is allocated and freed by GLFW. You
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* should not free it yourself. It is valid until the next call to @ref
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* glfwGetX11SelectionString or @ref glfwSetX11SelectionString, or until the
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* library is terminated.
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*
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* @thread_safety This function must only be called from the main thread.
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*
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* @sa @ref clipboard
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* @sa glfwSetX11SelectionString
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* @sa glfwGetClipboardString
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*
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* @since Added in version 3.3.
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*
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* @ingroup native
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*/
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GLFWAPI const char* glfwGetX11SelectionString(void);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_GLX)
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/*! @brief Returns the `GLXContext` of the specified window.
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*
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* @return The `GLXContext` of the specified window, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* window);
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/*! @brief Returns the `GLXWindow` of the specified window.
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*
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* @return The `GLXWindow` of the specified window, or `None` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.2.
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*
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* @ingroup native
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*/
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GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_WAYLAND)
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/*! @brief Returns the `struct wl_display*` used by GLFW.
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*
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* @return The `struct wl_display*` used by GLFW, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.2.
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*
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* @ingroup native
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*/
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GLFWAPI struct wl_display* glfwGetWaylandDisplay(void);
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/*! @brief Returns the `struct wl_output*` of the specified monitor.
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*
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* @return The `struct wl_output*` of the specified monitor, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.2.
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*
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* @ingroup native
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*/
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GLFWAPI struct wl_output* glfwGetWaylandMonitor(GLFWmonitor* monitor);
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/*! @brief Returns the main `struct wl_surface*` of the specified window.
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*
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* @return The main `struct wl_surface*` of the specified window, or `NULL` if
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* an [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.2.
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*
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* @ingroup native
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*/
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GLFWAPI struct wl_surface* glfwGetWaylandWindow(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_EGL)
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/*! @brief Returns the `EGLDisplay` used by GLFW.
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*
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* @return The `EGLDisplay` used by GLFW, or `EGL_NO_DISPLAY` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI EGLDisplay glfwGetEGLDisplay(void);
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/*! @brief Returns the `EGLContext` of the specified window.
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*
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* @return The `EGLContext` of the specified window, or `EGL_NO_CONTEXT` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI EGLContext glfwGetEGLContext(GLFWwindow* window);
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/*! @brief Returns the `EGLSurface` of the specified window.
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*
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* @return The `EGLSurface` of the specified window, or `EGL_NO_SURFACE` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.0.
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*
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* @ingroup native
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*/
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GLFWAPI EGLSurface glfwGetEGLSurface(GLFWwindow* window);
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#endif
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#if defined(GLFW_EXPOSE_NATIVE_OSMESA)
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/*! @brief Retrieves the color buffer associated with the specified window.
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*
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* @param[in] window The window whose color buffer to retrieve.
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* @param[out] width Where to store the width of the color buffer, or `NULL`.
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* @param[out] height Where to store the height of the color buffer, or `NULL`.
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* @param[out] format Where to store the OSMesa pixel format of the color
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* buffer, or `NULL`.
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* @param[out] buffer Where to store the address of the color buffer, or
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* `NULL`.
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* @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.3.
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*
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* @ingroup native
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*/
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GLFWAPI int glfwGetOSMesaColorBuffer(GLFWwindow* window, int* width, int* height, int* format, void** buffer);
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/*! @brief Retrieves the depth buffer associated with the specified window.
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*
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* @param[in] window The window whose depth buffer to retrieve.
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* @param[out] width Where to store the width of the depth buffer, or `NULL`.
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* @param[out] height Where to store the height of the depth buffer, or `NULL`.
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* @param[out] bytesPerValue Where to store the number of bytes per depth
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* buffer element, or `NULL`.
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* @param[out] buffer Where to store the address of the depth buffer, or
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* `NULL`.
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* @return `GLFW_TRUE` if successful, or `GLFW_FALSE` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.3.
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*
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* @ingroup native
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*/
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GLFWAPI int glfwGetOSMesaDepthBuffer(GLFWwindow* window, int* width, int* height, int* bytesPerValue, void** buffer);
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/*! @brief Returns the `OSMesaContext` of the specified window.
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*
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* @return The `OSMesaContext` of the specified window, or `NULL` if an
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* [error](@ref error_handling) occurred.
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*
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* @thread_safety This function may be called from any thread. Access is not
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* synchronized.
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*
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* @since Added in version 3.3.
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*
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* @ingroup native
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*/
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GLFWAPI OSMesaContext glfwGetOSMesaContext(GLFWwindow* window);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _glfw3_native_h_ */
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