glXGetCurrentReadDrawable — return the current drawable
GLXDrawable glXGetCurrentReadDrawable( |
glXGetCurrentReadDrawable
returns the current read drawable,
as specified by read
parameter
of glXMakeContextCurrent.
If there is no current drawable,
None
is returned.
glXGetCurrentReadDrawable
returns client-side information.
It does not make a round-trip to the server.
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