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GLXIMPORTCONTEXTEXT() GLXIMPORTCONTEXTEXT() NAME glXImportContextEXT - import another process's indirect rendering con- text. C SPECIFICATION GLXContext glXImportContextEXT( Display *dpy, GLXContextID contextID ) delim $$ PARAMETERS dpy Specifies the connection to the X server. contextID Specifies a GLX rendering context. DESCRIPTION glXImportContextEXT creates a GLXContext given the XID of an existing GLXContext. It may be used in place of glXCreateContext, to share an- other process's indirect rendering context. Only the server-side context information can be shared between X 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 ob- ject available to the importing client (Display *). Like any XID, it goes away when the creating client drops its connection or the ID is explicitly deleted. Note that this is when the XID goes away. The ob- ject 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 gen- erated but glXImportContextEXT returns NULL. glXImportContextEXT is part of the EXT_import_context extension, not part of the core GLX command set. If GLX_EXT_import_context is included in the string returned by glXQueryExtensionsString, when called with argument GLX_EXTENSIONS, extension EXT_import_context is supported. ERRORS GLXBadContext is generated if contextID does not refer to a valid con- text. SEE ALSO glXCreateContext, glXQueryVersion, glXQueryExtensionsString, glXGetCon- textIDEXT, glXFreeContextEXT GLXIMPORTCONTEXTEXT()
NAME | C SPECIFICATION | PARAMETERS | DESCRIPTION | ERRORS | SEE ALSO
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