Zoom (scale) a Window

I would like to find some sample 'C' (not C++) code that shows how to zoom and center a drawing in a Win95/98/NT app in 'C' using the Win32 API.  

I'm using SetMapMode and the associated windows and viewpoint org and ext functions.  I need to be able to click on a point in a drawing and center it (or scroll it) as well as scale it larger and smaller.  I managed to get the zoom code working, but I can't figure out how to center the selected point in the window and when I zoom larger, the drawing goes out of the window..  
arvidqAsked:
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arvidqAuthor Commented:
Thanks for the pointer.  I don't know why my search of MSDN didn't find this sample, but it may be because I searched on ZOOMING instead of ZOOMIN.  Also, this example doesn't use SetMapMode and the related functions, but on first glance, it does look like it will work.  I'll be implementing it very soon.

Thanks again.
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