Tk_GeometryRequest(3) Tk Library Procedures Tk_GeometryRequest(3)
NAME
Tk_GeometryRequest, Tk_SetMinimumRequestSize, Tk_SetInternalBorder,
Tk_SetInternalBorderEx - specify desired geometry or internal border
for a window
SYNOPSIS
#include <tk.h>
Tk_GeometryRequest(tkwin, reqWidth, reqHeight)
Tk_SetMinimumRequestSize(tkwin, minWidth, minHeight)
Tk_SetInternalBorder(tkwin, width)
Tk_SetInternalBorderEx(tkwin, left, right, top, bottom)
ARGUMENTS
Window for which geometry is being requested. Desired width for tkwin,
in pixel units. Desired height for tkwin, in pixel units. Desired
minimum requested width for tkwin, in pixel units. Desired minimum
requested height for tkwin, in pixel units. Space to leave for inter-
nal border for tkwin, in pixel units. Space to leave for left side of
internal border for tkwin, in pixel units. Space to leave for right
side of internal border for tkwin, in pixel units. Space to leave for
top side of internal border for tkwin, in pixel units. Space to leave
for bottom side of 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_Geome-
tryRequest 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_Geome-
tryRequest, 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 wid-
get has an internal border. This means that the widget draws a decora-
tive 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 plac-
ing any children of tkwin overlapping the outermost width pixels of
tkwin's area.
Tk_SetInternalBorderEx works like Tk_SetInternalBorder but lets you
specify different widths for different sides of the window.
Tk_SetMinimumRequestSize is called by widget code to indicate that a
geometry manager should request at least this size for the widget.
This allows a widget to have some control over its size when a propa-
gating geometry manager is used inside it.
The information specified in calls to Tk_GeometryRequest, Tk_SetMini-
mumRequestSize, Tk_SetInternalBorder and Tk_SetInternalBorderEx can be
retrieved using the macros Tk_ReqWidth, Tk_ReqHeight, Tk_MinReqWidth,
Tk_MinReqHeight, Tk_MinReqWidth, Tk_InternalBorderLeft, Tk_InternalBor-
derRight, Tk_InternalBorderTop and Tk_InternalBorderBottom. See the
Tk_WindowId manual entry for details.
KEYWORDS
geometry, request
Tk 8.4 Tk_GeometryRequest(3)
GeomReq 8.5.4 - Generated Sat Aug 23 15:48:42 CDT 2008