HP Workstation zx2000 OpenGL 1.1 Reference for HP-UX 11.x - Page 484

W glXWaitGL glXWaitGL glXWaitGL: complete GL execution prior to subsequent X calls. C Specification void glXWaitGL(void) Description GL rendering calls made prior to glXWaitGL are guaranteed to be executed before X rendering calls made after glXWaitGL. Although this same result can be achieved using glFinish, glXWaitGL does not require a round trip to the server, and it is therefore more efficient in cases where client and server are on separate machines. glXWaitGL is ignored if there is no current GLX context. Notes glXWaitGL may or may not flush the X stream. Errors • GLXBadCurrentWindow is generated if the drawable associated with the current context of the calling thread is a window, and that window is no longer valid. See Also glFinish, glFlush, glXWaitX, XSync 484 Chapter 21