XExtCodes *XInitExtension(display, name)
Display *display;
char *name;
display | Specifies the connection to the X server. |
name | Specifies the extension name. |
If the extension name is not in the Host Portable Character Encoding, the result is implementation dependent. Uppercase and lowercase matter; the strings ``thing'', ``Thing'', and ``thinG'' are all considered different names.
The extension number in the XExtCodes structure is needed in the other calls that follow. This extension number is unique only to a single connection.