filled rubber band in Winforms Application
问题 how can i draw a zero opacity rubber band over a windows form with 0.3 opacity? (The rubber band is made after a Microsoft example Update: I need that rubber band to work something like a mask. If you use Jing or any other screen shot tool, you will see EXACTLY what I need to do when do you try to make a screenshot: the screen goes semi-opaque and when you make the selection, you will see the 0 opacity selection 回答1: Is this the droid you were looking for? public Form1() { InitializeComponent