glwdrawingareaswapbuffers(3x) [xfree86 man page]

GLwDrawingAreaSwapBuffers(3X)											     GLwDrawingAreaSwapBuffers(3X)

NAME

       GLwDrawingAreaSwapBuffers -- Swap buffers in a GLwDrawingArea.

SYNOPSIS

       #include <GL/GLwDraw.h>
       void GLwDrawingAreaSwapBuffers( Widget w )

DESCRIPTION

       GLwDrawingAreaSwapBuffers is a front end to glXSwapBuffers, however instead of passing in a Display and a Window, a Widget is passed in.

SEE ALSO

       GLwMDrawingArea(3X), glXSwapBuffers(3G).

														     GLwDrawingAreaSwapBuffers(3X)

GLXSWAPBUFFERS(3G)						   OpenGL Manual						GLXSWAPBUFFERS(3G)

NAME

       glXSwapBuffers - exchange front and back buffers

C SPECIFICATION

       void glXSwapBuffers(Display * dpy, GLXDrawable drawable);

PARAMETERS

       dpy
	   Specifies the connection to the X server.

       drawable
	   Specifies the drawable whose buffers are to be swapped.

DESCRIPTION

       glXSwapBuffers promotes the contents of the back buffer of drawable to become the contents of the front buffer of drawable. The contents of
       the back buffer then become undefined. The update typically takes place during the vertical retrace of the monitor, rather than immediately
       after glXSwapBuffers is called.

       glXSwapBuffers performs an implicit glFlush() before it returns. Subsequent OpenGL commands may be issued immediately after calling
       glXSwapBuffers, but are not executed until the buffer exchange is completed.

       If drawable was not created with respect to a double-buffered visual, glXSwapBuffers has no effect, and no error is generated.

NOTES

       The contents of the back buffer become undefined after a swap. Note that this applies to pixel buffers as well as windows.

       All GLX rendering contexts share the same notion of which are front buffers and which are back buffers. One consequence is that when
       multiple clients are rendering to the same double-buffered window, all of them should finish rendering before one of them issues the
       command to swap buffers. The clients are responsible for implementing this synchronization. Typically this is accomplished by executing
       glFinish() and then using a semaphore in shared memory to rendezvous before swapping.

ERRORS

       GLXBadDrawable is generated if drawable is not a valid GLX drawable.

       GLXBadCurrentWindow is generated if dpy and drawable are respectively the display and drawable associated with the current context of the
       calling thread, and drawable identifies a window that is no longer valid.

SEE ALSO

       glFlush()

COPYRIGHT

       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS

       opengl.org

opengl.org							    06/10/2014							GLXSWAPBUFFERS(3G)