[Xcb] XShmGetEventBase()

[Russell Shaw]

Hi,
How do i get XCB events for X extensions? I'm trying to figure out the
equivalent of:


   #include<X11/extensions/XShm.h>

   XEvent xevent;
   XNextEvent(app->display, &xevent);

   int ShmCompletiontype = XShmGetEventBase(Display) + ShmCompletion;

   if(xevent.type == ShmCompletiontype) {
     ...
   }