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What is opengl32.dll?


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Windows Process Description:

The DLL opengl32.dll is a module which contains core OpenGL functions. For windows to operate the file opengl32.dll is required. It is used by Windows to allow the use of OpenGL for 3D graphics. Any software that uses OpenGL to display graphics, will not work, if the opengl32.dll program file is unavailable

Under the opengl32.dll program, its Core OpenGL (CGL) feature is Apple Computer's Macintosh Quartz windowing system interface to the Mac OS X implementation of the OpenGL specification. CGL of the opengl32.dll program is related to GLX, which is the X11 interface to OpenGL. It is also associated with WGL, the interface of Windows to OpenGL.

CGL in the opengl32.dll program is the foundation layer of windowing system interfaces to OpenGL. Both Apple Graphics Library (AGL) and the Cocoa API have interfaces to OpenGL and are logical software layers. They depend on CGL for their behavior. The CGL and AGL work together freely. The opengl32.dll program and Cocoa may be used together; however Cocoa classes may implicitly make changes to CGL state.

Configuration is done through a pixel format selection process where different compatible layers of rendering information are combined to form a framebuffer. Examples of such layers are color buffers, transparency buffers, stencil buffers, and depth buffers. With the opengl32.dll program, the CGL function CGLChoosePixelFormat is used to perform this buffer compatibility check. CGLChoosePixelFormat will choose a pixel format that will be used to process graphics commands. Renderers may be either hardware based, since they correspond to graphics cards installed in the system or they may be software based, where the main CPU of the system handles all of the graphics command processing and final pixelation work.

The CGL of the opengl32.dll program is also responsible for handling the heterogeneous nature of graphics device installations and configuration systems. It handles the management of OpenGL graphics state that must be shadowed between devices to provide command processing consistency between them. The opengl32.dll program also provides a mechanism to obtain information about the renderer that is currently in use.

Author: Microsoft Corporation

Author URL: http://

Part Of: Windows operating system

Memory Usage: Medium

Associated Applications: Microsoft OpenGL Client DLL

Background DLL: No

Uses Network: No

Hardware Related: No

Common Path: C:\ Windows\ system32\ dllcache\ opengl32.dll

DLL Version: 5.1.2600.1106 (xpsp1.020828-1920)

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