Tk_GetRootCoords(3) Tk Library Procedures Tk_GetRootCoords(3)__________________________________________________________________________________________________________________________________________________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.
_________________________________________________________________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
TkTk_GetRootCoords(3)
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Tk_GetVRootGeometry(3) Tk Library Procedures Tk_GetVRootGeometry(3)__________________________________________________________________________________________________________________________________________________NAME
Tk_GetVRootGeometry - Get location and size of virtual root for window
SYNOPSIS
#include <tk.h>
Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
ARGUMENTS
Tk_Window tkwin (in) Token for window whose virtual root is to be queried.
int xPtr (out) Points to word in which to store x-offset of virtual root.
int yPtr (out) Points to word in which to store y-offset of virtual root.
int widthPtr (out) Points to word in which to store width of virtual root.
int heightPtr (out) Points to word in which to store height of virtual root.
_________________________________________________________________DESCRIPTION
Tk_GetVRootGeometry returns geometry information about the virtual root window associated with tkwin. The "associated" virtual root is the
one in which tkwin's nearest top-level ancestor (or tkwin itself if it is a top-level window) has been reparented by the window manager.
This window is identified by a __SWM_ROOT or __WM_ROOT property placed on the top-level window by the window manager. If tkwin is not
associated with a virtual root (e.g. because the window manager does not use virtual roots) then *xPtr and *yPtr will be set to 0 and
*widthPtr and *heightPtr will be set to the dimensions of the screen containing tkwin.
KEYWORDS
geometry, height, location, virtual root, width, window manager
Tk 4.0 Tk_GetVRootGeometry(3)
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