The glFinish function blocks until all OpenGL execution is complete.
void glFinish(
void
);
The glFinish function does not return until the effects of all previously called OpenGL functions are complete. Such effects include all changes to the OpenGL state, all changes to the connection state, and all changes to the frame buffer contents.
The glFinish function requires a round trip to the server.
The following are the error codes generated and their conditions.
| Error Code | Condition |
|---|---|
| GL_INVALID_OPERATION | glFinish was called between a call to glBegin and the corresponding call to glEnd. |
Windows NT: Use version 3.5 and later.
Windows: Use Windows 95 and later.
Windows CE: Unsupported.
Header: Declared in gl.h.
Import Library: Link with opengl32.lib.