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XtMakeGeometryRequest(3Xt)
X11R6
NAME
XtMakeGeometryRequest, XtMakeResizeRequest - make geometry manager request
SYNOPSIS
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(3Xt), XtQueryGeometry(3Xt)
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface
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Index for Section 3Xt |
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