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Tk_GetRootCoords(3)   Tk Library Procedures



Tk_GetRootCoords - Compute root-window coordinates of window


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


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. _________________________________________________________________


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 doesn't have to communicate with the X server.


coordinates, root window Tk 1 Prepared by Ready-to-Run Software, Inc.


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