NAME

       Tk_GetRootCoords - Compute root-window coordinates of window

SYNOPSIS

       #include <tk.h>

       Tk_GetRootCoords(tkwin, xPtr, yPtr)

ARGUMENTS

       Tk_Window tkwin (in)          Token for window.

       int *xPtr (out)               Pointer  to  location  in  which  to  store  root-window  x-
                                     coordinate corresponding to left edge of tkwin's border.

       int *yPtr (out)               Pointer  to  location  in  which  to  store  root-window  y-
                                     coordinate corresponding to top edge of tkwin's border.
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DESCRIPTION

       This  procedure  scans  through the structural information maintained by Tk to compute the
       root-window coordinates corresponding to the upper-left  corner  of  tkwin's  border.   If
       tkwin   has   no   border,  then  Tk_GetRootCoords  returns  the  root-window  coordinates
       corresponding to location (0,0) in tkwin.  Tk_GetRootCoords is relatively efficient, since
       it does not have to communicate with the X server.

KEYWORDS

       coordinates, root window