opengl头文件khrplatform.hglext.hglcorearb.hglxext.hwglext.h

2018年为止opengl官方提供的拓展头文件。 -OpenGL1.2andabovecompatibilityprofileandextensioninterfaces. -OpenGLcoreprofileandARBextensioninterfaces,asdescribedinappendixG.2oftheOpenGL4.3Specification.Doesnotincludeinterfacesfoundonlyinthecompatibility