[Xcb] using xcb in existing apps

[Ian Osgood]

Questions like this could also be asked in the XCB mailing list.

 > I want to use xcb in an existing app is there a function that returns
 > a xcb_window_t when supplied a Window created  by XCreateWindow?

You can use an Xlib Window anywhere an xcb_window_t is required. In  
general, XID types like Window (X.h:typedef XID) are synonymous with  
their XCB equivalents.

Ian