NAME

XtMakeGeometryRequest, XtMakeResizeRequest - make geometry manager request

SYNTAX

XtGeometryResult XtMakeGeometryRequest(w, request,
reply_return)
      Widget w;
      XtWidgetGeometry *request;
      XtWidgetGeometry *reply_return;

XtGeometryResult XtMakeResizeRequest(w, width, height,
width_return, height_return)
      Widget w;
      Dimension width, height;
      Dimension *width_return, *height_return

ARGUMENTS

reply_return
          Returns the allowed widget size or may be NULL if
          the requesting widget is not interested in han-
          dling XtGeometryAlmost.

request Specifies the desired widget geometry (size, position, border width, and stacking order).

w Specifies the widget that is making the request.

width_return
height_return
          Return the allowed widget width and height.

DESCRIPTION

Depending on the condition, XtMakeGeometryRequest performs
the following:

•    If the widget is unmanaged or the widget's parent is
     not realized, it makes the changes and returns
     XtGeometryYes.

• If the parent is not a subclass of compositeWidgetClass or the parent's geometry_manager is NULL, it issues an error.

•    If the widget's being_destroyed field is True, it

returns XtGeometryNo.

     •    If the widget x, y, width, height and border_width
          fields are all equal to the requested values, it
          returns XtGeometryYes; otherwise, it calls the parent's
          geometry_manager procedure with the given parameters.

XWIN 3.0               Last change: 9/1/88                 .ie t

     •    If the parent's geometry manager returns XtGeometryYes
          and if XtCWQueryOnly is not set in the request_mode and
          if the widget is realized, XtMakeGeometryRequest calls
          the XConfigureWindow Xlib function to reconfigure the
          widget's window (set its size, location, and stacking
          order as appropriate).

     •    If the geometry manager returns XtGeometryDone, the
          change has been approved and actually has been done.
          In this case, XtMakeGeometryRequest does no configuring
          and returns XtGeometryYes.  XtMakeGeometryRequest never
          returns XtGeometryDone.

Otherwise, XtMakeGeometryRequest returns the resulting value from the parent's geometry manager.

Children of primitive widgets are always unmanaged; thus,
XtMakeGeometryRequest always returns XtGeometryYes when
called by a child of a primitive widget.

The XtMakeResizeRequest function, a simple interface to
XtMakeGeometryRequest, creates a XtWidgetGeometry structure
and specifies that width and height should change.  The
geometry manager is free to modify any of the other window
attributes (position or stacking order) to satisfy the
resize request.  If the return value is XtGeometryAlmost,
width_return and height_return contain a compromise width
and height.  If these are acceptable, the widget should
immediately make an XtMakeResizeRequest and request that the
compromise width and height be applied.  If the widget is
not interested in XtGeometryAlmost replies, it can pass NULL
for width_return and height_return.

SEE ALSO

     XtConfigureWidget(3Xt), XtQueryGeometery(3Xt)
     X Toolkit Intrinsics - C Language Interface
     Xlib - C Language X Interface

XWIN 3.0               Last change: 9/1/88                 .ie t

XWIN 3.0               Last change: 9/1/88                 .ie t