glFinish -- block until all GL execution is complete
void glFinish(void void)
glFinish does not return until the effects of all previously called GL
commands are complete. Such effects include all changes to GL state, all
changes to connection state, and all changes to the frame buffer
glFinish requires a round trip to the server
GL_INVALID_OPERATION is generated if glFinish is called
between a call to glBegin and the
corresponding call to glEnd.
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© 1995 Uwe Behrens. All rights reserved.