How can I delete things which I drew with GDI+

bombel

22y2.6kGDI+

HI How can I delete things which I drew with GDI, I mean for instance, a rectangle. It is killing me, I have tried every thing and I've got nothing. I can do it with Graphics.Clear(SomeColor) because it will mess up my background, I want just get rid of things that I drew. I’m using following code to draw rectangle: Graphics gfx = this.tabControlPanel3.CreateGraphics(); Rectangle rc = new Rectangle(10,20,100,200); gfx.SmoothingMode = SmoothingMode.AntiAlias; Pen pen = new Pen(Brushes.Red,3); gfx.DrawRectangle(pen,rc); I want to delete this rectangle from my Form after pressing a button. Please help me, I can’t sleep because of it :)))))

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Mykonine22y ago
Ah, just thought up a second solution. You can create a user control that draws the rectangle. That way, you can make the control visible when you want it and not visible when you don't.
Mykonine22y ago
I think you're approaching this problem from the wrong direction. Here's my suggestion, though there are definitely other solutions: Redesign your draw method so that, instead of "removing" the rectangle, you clear the form and redraw everything. That way, removing the rectangle becomes a problem of not drawing the rectangle instead of... well... I don't know how you would remove a drawn rectangle if the background isn't a solid color besides filling the background a second time.