NAME
XtMakeGeometryRequest, XtMakeResizeRequest - make geometry manager
request
SYNTAX
XtGeometryResult XtMakeGeometryRequest(Widget w, XtWidgetGeometry
*request, XtWidgetGeometry *reply_return);
XtGeometryResult XtMakeResizeRequest(Widget w, Dimension width, height,
Dimension *width_return, Dimension *height_return);
ARGUMENTS
reply_return
Returns the allowed widget size or may be NULL if the
requesting widget is not interested in handling
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.
· 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