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

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

36       coordinates, root window
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40Tk                                                         Tk_GetRootCoords(3)
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