Tk_GetRootCoords(3)          Tk Library Procedures         Tk_GetRootCoords(3)

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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

Tk                                                         Tk_GetRootCoords(3)