c# - 重绘复选框

Question

我想知道是否可以checkBox为文本和刻度绘制自定义颜色？我听说可以通过覆盖WndProc和使用来实现WM_PAINT，但我没有这样做的经验。

有人可以指出我正确的方向吗？

Answer 1

Here is an exceptionally basic example of how you can redraw a CheckBox:

    public class CustomCheckBox : CheckBox
    {
        public CustomCheckBox()
        {
            this.SetStyle(ControlStyles.UserPaint, true);
            this.SetStyle(ControlStyles.AllPaintingInWmPaint, true);
        }

        protected override void OnPaint(PaintEventArgs pevent)
        {
            base.OnPaint(pevent);
            if (this.Checked)
            {
                pevent.Graphics.FillRectangle(new SolidBrush(Color.Blue), new Rectangle(0, 0, 16, 16));
            }
            else
            {
                pevent.Graphics.FillRectangle(new SolidBrush(Color.Red), new Rectangle(0, 0, 16, 16));
            }
        }
    }

It works, but its very rough around the edges! However it does illustrate very basically how you can draw custom controls.