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 rendering 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 with- out externally visible names. GLX pixmaps with double-buffering are sup- ported. However, glXSwapBuffers is ignored by these pixmaps. Some implementations may not support GLX pixmaps with direct rendering con- texts. 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 exam- ple, 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()
NAME | C SPECIFICATION | PARAMETERS | DESCRIPTION | NOTES | ERRORS | SEE ALSO
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