日期:2014-05-18 浏览次数:20954 次
/*
    psrc  传入图像首地址
    pdst  DLL 对psrc处理有保存在pdst对应的内存中
*/
extern "C" _declspec(dllexport)  int clip2( unsigned char *psrc , unsigned char *pdst , int nwidth , int nheight);
 int clip2( unsigned char *psrc , unsigned char *pdst , int nwidth , int nheight)
 {
    //.............. 
 }
unsafe private static extern int clip2(byte* psrc, byte* pdst, int nwidth, int height);
            Bitmap bp = new Bitmap("a.bmp");
            this.pictureBox1.Image = bp
            int w = bp.Width; ;
            int h = bp.Height; ;
           
            Bitmap buf = new Bitmap(w,h,PixelFormat.Format24bppRgb);
            BitmapData datasrc = bp.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
            BitmapData datadst = buf.LockBits(new Rectangle(0, 0, w, h), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb);
            unsafe
            {
                byte * psrc = (byte *)datasrc.Scan0.ToPointer();
                byte *pdst = (byte *)datadst.Scan0.ToPointer();
                clip2(ptr, pdst, w, h);
            }