XtLastEventProcessed, XtLastTimestampProcessed - last event, last timestamp processed

display   Specifies the open display connection.

XtLastEventProcessed  returns the last event passed to XtDispatchEvent for the specified display and NULL
       if there has been no event.  The client must not modify the contents of the returned event.

       XtLastTimestampProcessed  returns  the  timestamp  of  the  last   KeyPress,   KeyRelease,   ButtonPress,
       ButtonRelease,  MotionNotify,  EnterNotify, LeaveNotify, PropertyNotify, or SelectionClear event that has
       been passed to XtDispatchEvent for the specified display and zero if there has been no such event.

       XtLastEventProcessed, XtLastTimestampProcessed - last event, last timestamp processed

XToolkitIntrinsics-CLanguageInterfaceXlib-CLanguageXInterface

X Version 11                                       libXt 1.2.1                           XtLastEventProcessed(3)

       #include <X11/Intrinsic.h>

       XEvent* XtLastEventProcessed(Display* display);

       Time XtLastTimestampProcessed(Display* display);