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
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 minWidth (in) Desired minimum requested width for tkwin, in pixel units.
int minHeight (in) Desired minimum requested height for tkwin, in pixel units.
int width (in) Space to leave for internal border for tkwin, in pixel units.
int left (in) Space to leave for left side of internal border for tkwin, in
pixel units.
int right (in) Space to leave for right side of internal border for tkwin, in
pixel units.
int top (in) Space to leave for top side of internal border for tkwin, in
pixel units.
int bottom (in) 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 par-ticular particular
ticular 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_GeometryRe-quest Tk_GeometryRequest
quest 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.
Tk_SetInternalBorderEx works like Tk_SetInternalBorder but lets you specify different widths for dif-ferent different
ferent 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
propagating geometry manager is used inside it.
The information specified in calls to Tk_GeometryRequest, Tk_SetMinimumRequestSize, Tk_SetInternal-Border Tk_SetInternalBorder
Border and Tk_SetInternalBorderEx can be retrieved using the macros Tk_ReqWidth, Tk_ReqHeight,
Tk_MinReqWidth, Tk_MinReqHeight, Tk_MinReqWidth, Tk_InternalBorderLeft, Tk_InternalBorderRight,
Tk_InternalBorderTop and Tk_InternalBorderBottom. See the Tk_WindowId manual entry for details.
KEYWORDS
geometry, request
Tk 8.4 Tk_GeometryRequest(3)
|