GDI+编程：怎样将图像缩放

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解决方案 »

  1.   

    那只是一个画大画小的问题.但是好像你的意思是要不失真,那是不可能的.除非你是SVG这些矢量画．
      

  2.   

    一个做缩略图的例子，希望对你能所帮助 
      System.Drawing.Image image = new Bitmap(@"E:\C#\aspnet\a.jpg");
      System.Drawing.Image pThumbnail = image.GetThumbnailImage(100, 100, null, new   IntPtr());
      Graphics g=Graphics.FromImage(pThumbnail);
      g.DrawImage(pThumbnail,10,10, pThumbnail.Width, pThumbnail.Height);
      pThumbnail.Save(@"e:\a.gif",ImageFormat.Gif);
      g.Dispose();
      

  3.   

    你只需在画图的时候指明图的长宽就行了，那么画图会自动按照你的尺寸进行缩放
    Graphics g=this.CreateGraphics();
    g.DrawImage(myBit,top,left,Width,Height);