We had to draw it by hand and then handle the WM_NCHITTEST message to return HTBOTTOMRIGHT.
That makes sense from a hack-it-to-make-it-work point of view. I may have to resort to that.
Do you remember if it was truly that simple? Or was there more to it than that?
I think that was all we needed to do. Might have needed to tweak the window style (WS_ flags) to get a resizable thin border. WM_NCHITTEST is, frankly, tragically underused, because it's awesome.
Note: it's _not_ a hack. This is exactly how Windows implements resizing -- DefWindowProc consumes WM_NCHITTEST and returns the relevant value. HTCAPTION is a good one, too -- makes the whole window draggable for free.
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