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GLXCREATEGLXPIXMAP() GLXCREATEGLXPIXMAP()
NAME
glXCreateGLXPixmap - create an off-screen GLX rendering area
C SPECIFICATION
GLXPixmap glXCreateGLXPixmap( Display *dpy,
XVisualInfo *vis,
Pixmap pixmap )
delim $$
PARAMETERS
dpy Specifies the connection to the X server.
vis Specifies the visual that defines the structure of the render-
ing area. It is a pointer to an XVisualInfo structure, not a
visual ID or a pointer to a Visual.
pixmap Specifies the X pixmap that will be used as the front left
color buffer of the off-screen rendering area.
DESCRIPTION
glXCreateGLXPixmap creates an off-screen rendering area and returns its
XID. Any GLX rendering context that was created with respect to vis
can be used to render into this off-screen area. Use glXMakeCurrent to
associate the rendering area with a GLX rendering context.
The X pixmap identified by pixmap is used as the front left buffer of
the resulting off-screen rendering area. All other buffers specified
by vis, including color buffers other than the front left buffer, are
created without externally visible names. GLX pixmaps with double-
buffering are supported. However, glXSwapBuffers is ignored by these
pixmaps.
Some implementations may not support GLX pixmaps with direct rendering
contexts.
NOTES
XVisualInfo is defined in Xutil.h. It is a structure that includes
visual, visualID, screen, and depth elements.
ERRORS
BadMatch is generated if the depth of pixmap does not match the depth
value reported by core X11 for vis, or if pixmap was not created with
respect to the same screen as vis.
BadValue is generated if vis is not a valid XVisualInfo pointer (for
example, if a particular GLX implementation does not support this
visual).
BadPixmap is generated if pixmap is not a valid pixmap.
BadAlloc is generated if the server cannot allocate the GLX pixmap.
SEE ALSO
glXCreateContext, glXIsDirect, glXMakeCurrent
GLXCREATEGLXPIXMAP()
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This page was generated on Sat Sep 8 16:39:34 GMT 2007
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