GSEvent
Crowd-sourced documentation and tutorials by the Cocoa developer community
Part of the iPhone UIKit framework.
Little is known about the elusive yet omnipresent GSEvent, though researchers believe the GS stands for "GraphicsServices". One very useful function is
%%BEGINCODESTYLE%%CGRect GSEventGetLocationInWindow(GSEvent event);%%ENDCODESTYLE%%
Other known functions are:
%%BEGINCODESTYLE%%int GSEventIsChordingHandEvent(GSEvent ev);%%ENDCODESTYLE%%
%%BEGINCODESTYLE%%int GSEventGetClickCount(GSEvent ev);%%ENDCODESTYLE%%
Maybe worth looking at:
