60 lines
1.4 KiB
C#
60 lines
1.4 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Drawing.Imaging;
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namespace PDADemo
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{
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public partial class PictureControl : Control
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{
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private int imageIndex = 0;
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public int ImageIndex
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{
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get { return imageIndex; }
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set
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{
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imageIndex = value;
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this.Invalidate();
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}
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}
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private Image backgroundImage;
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public Image BackgroundImage
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{
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get { return backgroundImage; }
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set { backgroundImage = value; }
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}
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public PictureControl()
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{
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}
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protected override void OnPaint(PaintEventArgs pe)
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{
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// TODO: 在此处添加自定义绘制代码
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SolidBrush brush = new SolidBrush(SystemColors.ActiveCaption);
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pe.Graphics.FillRectangle(brush, this.ClientRectangle);
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brush.Dispose();
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if (this.BackgroundImage != null)
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{
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ImageAttributes attr = new ImageAttributes();
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attr.SetColorKey(Color.Magenta, Color.Magenta);
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pe.Graphics.DrawImage(this.backgroundImage, this.ClientRectangle, imageIndex * 16, 0, 16, 16, GraphicsUnit.Pixel, attr);
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}
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// 调用基类 OnPaint
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base.OnPaint(pe);
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}
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}
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}
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