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How can I minimize flickering when drawing a control

Platform: WinForms| Category: Drawing Tips

The Window.Forms framework offers support for double buffering to avoid flickers through ControlStyles. Double buffering is a technique that attempts to reduce flicker by doing all the drawing operations on an off-screen canvas, and then exposing this canvas all at once.

To turn on a control’s double buffering, you need to set three styles.

	public UserPictureBox()  //derived from System.Windows.Forms.Control
	{
		// This call is required by the Windows.Forms Form Designer.
		InitializeComponent();

		// Activates double buffering
		SetStyle(ControlStyles.UserPaint, true);
		SetStyle(ControlStyles.AllPaintingInWmPaint, true);
		SetStyle(ControlStyles.DoubleBuffer, true);

		// TODO: Add any initialization after the InitForm call
	}

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