X Version 11 (1 September 1988) XtMakeGeometryRequest(Xt)
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
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(Xt), XtQueryGeometery(Xt)
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
(printed 2/14/90) (1 September 1988)tMakeGeometryRequest(Xt)