1Tk_GetVRootGeometry(3) Tk Library Procedures Tk_GetVRootGeometry(3)
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8 Tk_GetVRootGeometry - Get location and size of virtual root for window
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11 #include <tk.h>
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13 Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
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16 Tk_Window tkwin (in) Token for window whose virtual root
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19 int xPtr (out) Points to word in which to store x-
20 offset of virtual root.
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22 int yPtr (out) Points to word in which to store y-
23 offset of virtual root.
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25 int widthPtr (out) Points to word in which to store
26 width of virtual root.
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28 int heightPtr (out) Points to word in which to store
29 height of virtual root.
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34 TkGetVRootGeometry returns geometry information about the virtual root
35 window associated with tkwin. The ``associated'' virtual root is the
36 one in which tkwin's nearest top-level ancestor (or tkwin itself if it
37 is a top-level window) has been reparented by the window manager. This
38 window is identified by a __SWM_ROOT or __WM_ROOT property placed on
39 the top-level window by the window manager. If tkwin is not associated
40 with a virtual root (e.g. because the window manager doesn't use vir‐
41 tual roots) then *xPtr and *yPtr will be set to 0 and *widthPtr and
42 *heightPtr will be set to the dimensions of the screen containing
43 tkwin.
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47 geometry, height, location, virtual root, width, window manager
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51Tk 4.0 Tk_GetVRootGeometry(3)