🚀 go-pugleaf

I am using the GCC 2.2.2 from hobbes.

Starting with the sample3 program included in the GCC samples
file I wrote a class for a window object. I included 4 extra bytes
in the window words of the window. I placed a pointer to the object
in the window words.

The window function gets this pointer from the window words with the
WinQueryWindowPtr function and the calls a member function of the window
object. Example

MRESULT EXPENTRY WinFunc(...)
{
	WindowClass * pwc;

	pwc = WinQueryWindowPtr(...);
	return pwc->ClassWinFunc(...);
}

I've used ...  instead of arguments for brevity.

So far, it worked.

Then I  went back on changed the member function ClassWinFunc() to
virtual. Now, the program gives a 3175 error.

Has anyone else experienced anything like this?

Any suggestions?

Thanks,
Todd 
tdukes@eng.auburn.edu
(205)826-8865