1Tk_GetRootCoords(3)          Tk Library Procedures         Tk_GetRootCoords(3)
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NAME

8       Tk_GetRootCoords - Compute root-window coordinates of window
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SYNOPSIS

11       #include <tk.h>
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13       Tk_GetRootCoords(tkwin, xPtr, yPtr)
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ARGUMENTS

16       Tk_Window   tkwin   (in)      Token for window.
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18       int         *xPtr   (out)     Pointer  to  location  in  which to store
19                                     root-window x-coordinate corresponding to
20                                     left edge of tkwin's border.
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22       int         *yPtr   (out)     Pointer  to  location  in  which to store
23                                     root-window y-coordinate corresponding to
24                                     top edge of tkwin's border.
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DESCRIPTION

29       This  procedure  scans through the structural information maintained by
30       Tk to compute the root-window coordinates corresponding to  the  upper-
31       left  corner  of  tkwin's border.  If tkwin has no border, then Tk_Get‐
32       RootCoords returns the root-window coordinates corresponding  to  loca‐
33       tion  (0,0)  in tkwin.  Tk_GetRootCoords is relatively efficient, since
34       it doesn't have to communicate with the X server.
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KEYWORDS

38       coordinates, root window
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42Tk                                                         Tk_GetRootCoords(3)