The OpenGL Registry contains specifications of the core API and shading language; specifications of Khronos- and vendor-approved OpenGL extensions; header files corresponding to the specifications; and related documentation including specifications, extensions, and headers for the GLX, WGL, and GLU APIs.
The OpenGL registry is part of the Combined OpenGL Registry for OpenGL, OpenGL ES, and OpenGL SC, which includes the XML API registry of reserved enumerants and functions.
Table of Contents
Because extensions vary from platform to platform and driver to driver, OpenGL developers can't expect interfaces for all extensions to be defined in the standard gl.h, glx.h, and wgl.h header files supplied with the OS / graphics drivers. Additional header files are provided here, including:
Almost all of the headers described below depend on a platform header file common to multiple Khronos APIs called <KHR/khrplatform.h>.
These headers define interfaces including enumerants; prototypes; and, for platforms supporting dynamic runtime extension queries, such as Linux and Microsoft Windows, function pointer typedefs. Please report problems as Issues in the OpenGL-Registry repository.
Khronos Shared Platform Header (<KHR/khrplatform.h>)
The OpenGL Application Binary Interface for Linux is also available. Note that the ABI is extremely old and of little use today.