![]() Some routines, which are prefixed by wgl, extend Win32 so that OpenGL can be fully supported.įor Win32/WGL, the PIXELFORMATDESCRIPTOR is the key data structure for maintaining pixel format information about the OpenGL window.Ī variable of data type PIXELFORMATDESCRIPTOR keeps track of pixel information, including pixel type (RGBA or color-index) single- or double-buffering resolution of colors and presence of depth, stencil. ![]() The functions and routines of the Win32 library are necessary to initialize the pixel format and control rendering, and for access to extensions for OpenGL. OpenGL rendering is supported on systems that run any modern version of Microsoft Windows (from Windows 95 and later). WGL: OpenGL Extensions for Microsoft Windows
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