GDI+生成动画式的Gif图片示例代码 |
| 12/3/2009 8:54:08 AM |
想用GDI+生成动画式的Gif图片示例代码:
 Bitmap bmp = new Bitmap(100, 100);
Graphics g = Graphics.FromImage(bmp);
Font f = new Font("arial", 11f);
Brush b = Brushes.Blue;
string txt = "Rotate text animation!";
SizeF sz = g.MeasureString(txt, f);
g.Clear(Color.WhiteSmoke);
g.DrawString(txt, f, b, 50-sz.Width/2, 50-sz.Height/2);
g.Flush();
//(The following code create a starting frame from bmp)
GifImage.GifAnimation gif = new GifImage.GifAnimation(bmp,
GifImage.GraphicControlExt.Default);
//(Set this property otherwise the animation will not play circularly)
gif.Application = GifImage.ApplicationExt.Default;
//(Use global color table only, set this option will greatly decrease the size of output file)
gif.UseGlobalColorTableOnly = true;
for (int i = 1; i < 36; ++i)
  {
 g.Clear(Color.WhiteSmoke);
g.TranslateTransform(50,50);
g.RotateTransform(10f * i);
g.DrawString(txt, f, b, sz.Width/-2, sz.Height/-2);
g.ResetTransform();
g.DrawString("Hello", f, Brushes.Red, -50 + i * 4, 20);
g.DrawString("Yeah", f, Brushes.Orange, 60, -20+i*4);
g.Flush();
//(Create a frame from bitmap)
gif.AddFrame(bmp);
 }
f.Dispose();
g.Dispose();
bmp.Dispose();
FileStream fs = new FileStream(@"E:\vmlinux\GifImage.gif", FileMode.Create);
//(Write animation to GifImage.gif)
gif.Save(fs);
fs.Close;
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本文附件：
GifImage_demo.rar
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| 作者：与时俱进
来源：博客园 |