Finally, I have make it works.
May I know how to refresh painting properly? I found that, if I draw the image at the same place over and over the image color will be deeper and deeper etc.
Any way to get more information on this?
Thank you
I am not the most powerful man in this world.
I am not the worst man in this world either.
I just as same as all of you.
I still need to learn from my mistakes...
