1GLXCREATEGLXPIXMAP() GLXCREATEGLXPIXMAP()
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6 glXCreateGLXPixmap - create an off-screen GLX rendering area
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10 GLXPixmap glXCreateGLXPixmap( Display *dpy,
11 XVisualInfo *vis,
12 Pixmap pixmap )
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14 delim $$
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17 dpy Specifies the connection to the X server.
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19 vis Specifies the visual that defines the structure of the render‐
20 ing area. It is a pointer to an XVisualInfo structure, not a
21 visual ID or a pointer to a Visual.
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23 pixmap Specifies the X pixmap that will be used as the front left
24 color buffer of the off-screen rendering area.
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27 glXCreateGLXPixmap creates an off-screen rendering area and returns its
28 XID. Any GLX rendering context that was created with respect to vis
29 can be used to render into this off-screen area. Use glXMakeCurrent to
30 associate the rendering area with a GLX rendering context.
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32 The X pixmap identified by pixmap is used as the front left buffer of
33 the resulting off-screen rendering area. All other buffers specified
34 by vis, including color buffers other than the front left buffer, are
35 created without externally visible names. GLX pixmaps with double-
36 buffering are supported. However, glXSwapBuffers is ignored by these
37 pixmaps.
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39 Some implementations may not support GLX pixmaps with direct rendering
40 contexts.
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43 XVisualInfo is defined in Xutil.h. It is a structure that includes
44 visual, visualID, screen, and depth elements.
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47 BadMatch is generated if the depth of pixmap does not match the depth
48 value reported by core X11 for vis, or if pixmap was not created with
49 respect to the same screen as vis.
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51 BadValue is generated if vis is not a valid XVisualInfo pointer (for
52 example, if a particular GLX implementation does not support this vis‐
53 ual).
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55 BadPixmap is generated if pixmap is not a valid pixmap.
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57 BadAlloc is generated if the server cannot allocate the GLX pixmap.
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60 glXCreateContext, glXIsDirect, glXMakeCurrent
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64 GLXCREATEGLXPIXMAP()