ldj/wince/NetworkDemo/Controls/PictureControl.cs

60 lines
1.4 KiB
C#

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