FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutSwapBuffers" );
FREEGLUT_EXIT_IF_NO_WINDOW ( "glutSwapBuffers" );
+ /*
+ * "glXSwapBuffers" already performs an implicit call to "glFlush". What
+ * about "SwapBuffers"?
+ */
glFlush( );
if( ! fgStructure.CurrentWindow->Window.DoubleBuffered )
return;