hpux man page for xungrabpointer

XUngrabPointer()														  XUngrabPointer()

Name
  XUngrabPointer - release the pointer from an active grab.

Synopsis
  XUngrabPointer(display, time)
	Display *display;
	Time time;

Arguments
  display   Specifies a connection to an X server; returned from XOpenDisplay().

  time	    Specifies the time when the grab should take place.  Pass either a timestamp, expressed in milliseconds, or the constant Current-
	    Time.  If this time is earlier than the last-pointer-grab time or later than  current  server  time,  the  pointer	will  not  be
	    grabbed.

Description
  XUngrabPointer() releases an active grab on the pointer by the calling client.  It executes as follows:

  o  Releases  the pointer and any queued events, if this client has actively grabbed the pointer from XGrabPointer(), XGrabButton(), or from
     a normal button press.

  o  Does not release the pointer if the specified time is earlier than the last-pointer-grab time or is later	than  the  current  X  server
     time.

  o  Generates EnterNotify and LeaveNotify events.

  The  X  server  performs  an XUngrabPointer() automatically if the event_window or confine_to window (arguments of XGrabButton() and XGrab-
  Pointer()) becomes not viewable, or if the confine_to window is moved completely outside the root window.

  For more information, see Volume One, Chapter 9, The Keyboard and Pointer.

See Also
  XChangeActivePointerGrab(), XChangePointerControl(), XGetPointerControl(),  XGetPointerMapping(),  XGrabPointer(),  XQueryPointer(),	XSet-
  PointerMapping(), XWarpPointer().

Xlib - Pointer															  XUngrabPointer()