1Tk_SetGrid(3)                Tk Library Procedures               Tk_SetGrid(3)
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NAME

8       Tk_SetGrid, Tk_UnsetGrid - control the grid for interactive resizing
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SYNOPSIS

11       #include <tk.h>
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13       Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
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15       Tk_UnsetGrid(tkwin)
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ARGUMENTS

18       Tk_Window tkwin (in)              Token for window.
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20       int reqWidth (in)                 Width  in grid units that corresponds
21                                         to the pixel dimension tkwin has  re‐
22                                         quested via Tk_GeometryRequest.
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24       int reqHeight (in)                Height in grid units that corresponds
25                                         to the pixel dimension tkwin has  re‐
26                                         quested via Tk_GeometryRequest.
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28       int widthInc (in)                 Width of one grid unit, in pixels.
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30       int heightInc (in)                Height of one grid unit, in pixels.
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DESCRIPTION

34       Tk_SetGrid  turns  on  gridded geometry management for tkwin's toplevel
35       window and specifies the geometry of the grid.  Tk_SetGrid is typically
36       invoked  by a widget when its setGrid option is true.  It restricts in‐
37       teractive resizing of tkwin's toplevel window so that the  space  allo‐
38       cated to the toplevel is equal to its requested size plus or minus even
39       multiples of widthInc and heightInc.  Furthermore, the reqWidth and re‐
40       qHeight  values  are passed to the window manager so that it can report
41       the window's size in grid units during interactive resizes.  If tkwin's
42       configuration  changes (e.g., the size of a grid unit changes) then the
43       widget should invoke Tk_SetGrid again with the new information.
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45       Tk_UnsetGrid cancels gridded geometry management for  tkwin's  toplevel
46       window.
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48       For  each toplevel window there can be at most one internal window with
49       gridding enabled.  If Tk_SetGrid or Tk_UnsetGrid is invoked  when  some
50       other  window is already controlling gridding for tkwin's toplevel, the
51       calls for the new window have no effect.
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53       See the wm manual entry for additional information on gridded  geometry
54       management.
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KEYWORDS

57       grid, window, window manager
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61Tk                                    4.0                        Tk_SetGrid(3)