dix: return deliveries from DeliverGrabbedEvent

This isn't currently used by any of the callers but it will likely be in the
future.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Jamey Sharp <jamey@minilop.net>

dix/events.c

@@ -3884,8 +3884,10 @@ unwind:
  * grab. If not, TryClientEvents() is used.
  *
  * @param deactivateGrab True if the device's grab should be deactivated.
+ *
+ * @return The number of events delivered.
  */
-void
+int
 DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
                     Bool deactivateGrab)
 {
@@ -4053,6 +4055,8 @@ DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
     free(core);
     free(xi);
     free(xi2);
+
+    return deliveries;
 }
 
 /* This function is used to set the key pressed or key released state -

include/dix.h

@@ -415,7 +415,7 @@ extern void DeliverFocusedEvent(
     InternalEvent* /* event */,
     WindowPtr /* window */);
 
-extern void DeliverGrabbedEvent(
+extern int DeliverGrabbedEvent(
     InternalEvent* /* event */,
     DeviceIntPtr /* thisDev */,
     Bool /* deactivateGrab */);