Winforms Button Right-Click visual feedback (Show button in pushed state)

Question

The default winforms Button control only draws itself in a \"clicked state\" when the user left clicks the button. I need the Button control to draw itself in the clicked state

Answer 1

Standard button control sets the button in down and pressed mode using a private SetFlag method. You can do it yourself too. I did it in following code:

using System.Windows.Forms;
public class MyButton : Button
{
    protected override void OnMouseDown(MouseEventArgs e)
    {
        SetPushed(true);
        base.OnMouseDown(e);
        Invalidate();
    }
    protected override void OnMouseUp(MouseEventArgs e)
    {
        SetPushed(false);
        base.OnMouseUp(e);
        Invalidate();
    }
    private void SetPushed(bool value)
    {
        var setFlag = typeof(ButtonBase).GetMethod("SetFlag", 
            System.Reflection.BindingFlags.Instance |
            System.Reflection.BindingFlags.NonPublic);
        if(setFlag != null)
        {
            setFlag.Invoke(this, new object[] { 2, value });
            setFlag.Invoke(this, new object[] { 4, value });
        }
    }
}