Using WM_GETMINMAXINFO to constrain window size using SmartSubclass

I want to use the window message WM_GETMINMAXINFO to limit the movement of the window tracking border.

I can do that by the method listed in microsoft knowledge base at:

http://support.microsoft.com/kb/185733

but in this code I must do the whole subclassing

I want to do that using the SmartSubclass library

it is a very smart, simple and really professional tool for subclassing, binary and source at:

http://www.visual-basic.com.ar/vbsma...rtsubclass.htm

the problem here is that:
By using smartsubclass, I can only change the ptMaxTrackSize, but I cannot change ptMinTrackSize

Aside from the ability to crash your code without crashing the IDE, why not just write the code to do the subclassing yourself? (Or modify the class?)