OpenGL Programming Guide: The Official Guide to Learning OpenGL, Version 4.3, Eighth Edition

Controlling Rendering

Several WGL routines are provided for creating and managing an OpenGL rendering context, rendering to a bitmap, swapping front and back buffers, finding a color palette, and using either bitmap or outline fonts.

Managing an OpenGL Rendering Context

wglCreateContext() and wglCreateContextAttribsARB() (the latter for use with OpenGL Version 3.0 and greater) create an OpenGL rendering context for drawing on the device in the selected pixel format of the device context. (To create an OpenGL rendering context for overlay or underlay windows, use wglCreateLayerContext() instead.) To make a rendering context current, use wglMakeCurrent(); wglGetCurrentContext() returns the current context. You can also obtain the current device ...