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Tk_SetGrid(3)		     Tk	Library	Procedures		 Tk_SetGrid(3)

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NAME
       Tk_SetGrid, Tk_UnsetGrid	- control the grid for interactive resizing

SYNOPSIS
       #include	<tk.h>

       Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc,	heightInc)

       Tk_UnsetGrid(tkwin)

ARGUMENTS
       Tk_Window tkwin (in)		 Token for window.

       int reqWidth (in)		 Width	in grid	units that corresponds
					 to the	pixel dimension	tkwin has  re-
					 quested via Tk_GeometryRequest.

       int reqHeight (in)		 Height	in grid	units that corresponds
					 to  the pixel dimension tkwin has re-
					 quested via Tk_GeometryRequest.

       int widthInc (in)		 Width of one grid unit, in pixels.

       int heightInc (in)		 Height	of one grid unit, in pixels.
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DESCRIPTION
       Tk_SetGrid turns	on gridded geometry management	for  tkwin's  toplevel
       window and specifies the	geometry of the	grid.  Tk_SetGrid is typically
       invoked	by a widget when its setGrid option is true.  It restricts in-
       teractive resizing of tkwin's toplevel window so	that the  space	 allo-
       cated to	the toplevel is	equal to its requested size plus or minus even
       multiples of widthInc and heightInc.  Furthermore, the reqWidth and re-
       qHeight	values	are passed to the window manager so that it can	report
       the window's size in grid units during interactive resizes.  If tkwin's
       configuration changes (e.g., the	size of	a grid unit changes) then  the
       widget should invoke Tk_SetGrid again with the new information.

       Tk_UnsetGrid  cancels  gridded geometry management for tkwin's toplevel
       window.

       For each	toplevel window	there can be at	most one internal window  with
       gridding	 enabled.   If Tk_SetGrid or Tk_UnsetGrid is invoked when some
       other window is already controlling gridding for	tkwin's	toplevel,  the
       calls for the new window	have no	effect.

       See  the	wm manual entry	for additional information on gridded geometry
       management.

KEYWORDS
       grid, window, window manager

Tk				      4.0			 Tk_SetGrid(3)

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