Resizing window causes black strips

Question

I have a form, which sets these styles in constructor:

this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
this.SetStyle(ControlStyles.UserPaint, true);         


        

Answer 1

I found that it is best not to do any custom rendering directly on the Form surface. Instead, put a docked PictureBox on the form, create Bitmap object that will be displayed in the PictureBox, draw everything onto that using the System.Drawing.Graphics.FromImage(Image) method.

I used that method with a game loop to make a simple shooter game (Crimsonland-style) and got pretty good performance (with anti-aliased lines), above 100 FPS.