Tk_GetVRootGeometry(3tk)

Tk_GetVRootGeometry(3)Tk Library ProceduresTk_GetVRootGeometry(3)

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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.
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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 iden-
     tified  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                      Last change: 4.0                        1