glXImportContextEXT(3G) OpenGL Reference - GLX glXImportContextEXT(3G)
NAME
glXImportContextEXT - import an existing GLX rendering context
C SPECIFICATION
GLXContext glXImportContextEXT( Display *dpy,
GLXContextID contextID )
PARAMETERS
dpy Specifies the connection to the X server.
contextID Specifies the XID of the GLX rendering context to be imported.
DESCRIPTION
glXImportContextEXT imports an existing GLX rendering context into the
client's process and returns a handle to it. Use it in place of
glXCreateContext to share another process's indirect rendering context.
Only the server-side context information can be shared between GLX
clients; client-side state, such as pixel storage modes, cannot be
shared. Thus glXImportContextEXT must allocate memory to store client-
side information. This memory is freed by calling glXFreeContextEXT.
This call does not create a new XID. It merely makes an existing object
available to the importing client (Display *). Like any XID, it goes
away when the creating client drops its connection or the i.d. is
explicitly deleted. Note that this is when the XID goes away. The object
goes away when the XID goes away AND the context is not current to any
thread.
If contextID refers to a direct rendering context then no error is
generated but glXImportContextEXT returns NULL.
NOTES
glXImportContextEXT is part of the EXTimportcontext extension.
ERRORS
If contextID does not refer to a valid context a GLXBadContext error is
generated.
ASSOCIATED GETS
glXGetContextIDEXT
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glXImportContextEXT(3G) OpenGL Reference - GLX glXImportContextEXT(3G)
SEE ALSO
glXCreateContext,glXFreeContextEXT
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