Hi,
Thank you for reply.
I have send my program to your email box - lisa@spacefold.com. If you don't mind, pls check it out.

Somemore question:
1. What unit enumeration should I use for while creating pen object?
2. Should I divide nTop, nLeft, nHeigh and nWidth by 960 before pass to GDI API if i set unit enumeration to 4 (inch) ?
3. The program gdiplus.prg in my attachment would not work if I use GdipDrawLine()? It works if I use GdipDrawLineI()

Thank you