I'm getting a little closer to figuring this out, but hope that someone can
give me a little more info.  I found some Apple documentation that shows how
to programatically create an image in a scrollview.  Below, I've included the
code when the app starts up.  I'd like to have the imageRect the same width as
the scrollView is, but I want the image inside it to remain proportional.
The next step I'd like to do is make the image larger when I resize the 
window.  Below, I'm experimenting with the 'windowDidResize' which works for
making the image 1.2 bigger, but I'm not sure how to make it work when
resizing larger then back to smaller.  Would appreciate any thoughts.

Thanks.

Jay
 
------------------
theImage = [[NSImage alloc] initWithContentsOfFile:filePath];
imageWidth = [theImage size].width; // * 1.5;
imageHeight = [theImage size].height; // * 1.5;
imageRect = NSMakeRect(0.0, 0.0, imageWidth, imageHeight);
[theImageView setBounds:imageRect];
[theImageView setImageScaling:NSScaleToFit];
[theImageView setImage:theImage];
scrollView = [[NSScrollView alloc] initWithFrame:[[theBox contentView] frame]];
[scrollView setHasVerticalScroller:YES];
[scrollView setHasHorizontalScroller:YES];
[scrollView setBorderType:NSNoBorder];
[scrollView setAutoresizingMask:NSViewWidthSizable|NSViewHeightSizable];
[scrollView setDocumentView:theImageView];
[theBox setContentView:scrollView];
------------------


------------------
 - (void)windowDidResize:(NSNotification *)notification {
        imageRect.size.width = imageWidth * 1.2;
        imageRect.size.height = imageHeight * 1.2;
        [theImageView setBounds:imageRect];
        [theImageView setImageScaling:NSScaleToFit];
         [theImageView setImage:theImage];
        [scrollView setDocumentView:theImageView];
         [scrollView setFrame:imageRect];
        [theBox setContentView:scrollView];
        [scrollView setNeedsDisplay:YES];
}
------------------

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