🚀 go-pugleaf

Hi,

I made 'my' version of balloon form (for some inplace tips). The
form is in fact a rectangle (for showing message) with adition of
the direction rectangle (if that is called) which points to a hot spot.

All that is made with API:
   CreatePolygonRgn()
... and 8 points, something like:

   // ...
   HRGN hRgn = CreatePolygonRgn( &pts[0], 8, ALTERNATE );
   if ( hRgn )
   {
      if ( !SetWindowRgn ( Handle, hRgn, true ) )
         DeleteObject(hRgn);
   }

   // ...

Now, I'm interested what technique can I use to make the
corners rounded (like in XP)?

Should I use some math formulas to calculate additional points
or there is something easier?

Can I somehow make a composite shape (region), consisted of
two shapes, like first to define the RoundRect and that to add the
Triangle at the appropriate side?

What do you suggest?




Best regards,
Vladimir Stefanovic