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From: pringle@dec05.cs.monash.edu.au (Glen Pringle)
Newsgroups: comp.windows.x
Subject: Resizing a widgets window from within Resize
Summary: How do I make the window size of a widget change its size
Keywords: widget resize
Message-ID: <pringle.676008410@dec05>
Date: 4 Jun 91 04:06:50 GMT
Sender: news@bruce.cs.monash.OZ.AU
Distribution: comp
Lines: 28

I have written a widget to display an image.  When a new image is to be
displayed, I want the widget to resize itself to the size of the image.
What I have tried doing is:

    if (w->core.width != image->cols) {
        w->core.width=image->cols;
    }
    if (w->core.height != image->rows) {
        w->core.height=image->rows;
    }

but this doesn't resize the widgets window.  I also tried doing things like 

    XtConfigureWidget(w, w->core.width, w->core.height, w->core.border_width);

or setting the width and height of the widget using XtSetValues() but none of
this works.  I am inheriting from the core widget.  Must I inherit from some
other type of widget (such as the form widget) to allow resize or is it
something else that I have missed?


disclaimer: I am new at writing my own widgets  :-)

--------------------------------------------------------------------------
|  GLen Pringle                    |  Research is what I'm doing when    |
|  Monash University, Australia    |    I don't know what I'm doing.     |
|  pringle@bruce.cs.monash.edu.au  |           - Bert Whitney            |
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