ultrix man page for xtranslatecoordinates

XTranslateCoordinates(3X11)					     MIT X11R4					       XTranslateCoordinates(3X11)

Name
       XTranslateCoordinates - translate window coordinates

Syntax
       Bool XTranslateCoordinates(display, src_w, dest_w, src_x, src_y, dest_x_return,
		     dest_y_return, child_return)
	  Display *display;
	  Window src_w, dest_w;
	  int src_x, src_y;
	  int *dest_x_return, *dest_y_return;
	  Window *child_return;

Arguments
       child_return
		 Returns the child if the coordinates are contained in a mapped child of the destination window.

       dest_w	 Specifies the destination window.

       dest_x_return
       dest_y_return
		 Return the x and y coordinates within the destination window.

       display	 Specifies the connection to the X server.

       src_w	 Specifies the source window.

       src_x
       src_y	 Specify the x and y coordinates within the source window.

Description
       The function takes the src_x and src_y coordinates relative to the source window's origin and returns these coordinates to dest_x_return
       and dest_y_return relative to the destination window's origin.  If returns zero, src_w and dest_w are on different screens, and
       dest_x_return and dest_y_return are zero.  If the coordinates are contained in a mapped child of dest_w, that child is returned to
       child_return.  Otherwise, child_return is set to

       can generate a error.

Diagnostics
       A value for a Window argument does not name a defined Window.

See Also
       X Window System: The Complete Reference, Second Edition, Robert W. Scheifler and James Gettys

														       XTranslateCoordinates(3X11)