geomreq(3Tk)

NAME
     Tk_GeometryRequest, Tk_SetInternalBorder - specify desired geometry or
     internal border for a window

SYNOPSIS
     #include <tk.h>

     Tk_GeometryRequest(tkwin, reqWidth, reqHeight)

     Tk_SetInternalBorder(tkwin, width)

ARGUMENTS
     Tk_Window    tkwin        (in)      Window for which geometry is being
                                         requested.

     int          reqWidth     (in)      Desired width for tkwin, in pixel
                                         units.

     int          reqHeight    (in)      Desired height for tkwin, in pixel
                                         units.

     int          width        (in)      Space to leave for internal border
                                         for tkwin, in pixel units.


DESCRIPTION
     Tk_GeometryRequest is called by widget code to indicate its preference
     for the dimensions of a particular window.  The arguments to
     Tk_GeometryRequest are made available to the geometry manager for the
     window, which then decides on the actual geometry for the window.
     Although geometry managers generally try to satisfy requests made to
     Tk_GeometryRequest, there is no guarantee that this will always be
     possible.  Widget code should not assume that a geometry request will be
     satisfied until it receives a ConfigureNotify event indicating that the
     geometry change has occurred.  Widget code should never call procedures
     like Tk_ResizeWindow directly.  Instead, it should invoke
     Tk_GeometryRequest and leave the final geometry decisions to the geometry
     manager.

     If tkwin is a top-level window, then the geometry information will be
     passed to the window manager using the standard ICCCM protocol.

     Tk_SetInternalBorder is called by widget code to indicate that the widget
     has an internal border.  This means that the widget draws a decorative
     border inside the window instead of using the standard X borders, which
     are external to the window's area.  For example, internal borders are
     used to draw 3-D effects.  Width specifies the width of the border in
     pixels.  Geometry managers will use this information to avoid placing any
     children of tkwin overlapping the outermost width pixels of tkwin's area.
     The information specified in calls to Tk_GeometryRequest and
     Tk_SetInternalBorder can be retrieved using the macros Tk_ReqWidth,
     Tk_ReqHeight, and Tk_InternalBorderWidth.  See the Tk_WindowId manual
     entry for details.


KEYWORDS
     geometry, request