Hello,

How can i copy custom pixel wrom Bitmap to another Bitmap.

Example:
Source(0,0,640,480) -> Destination(10,10,40,40) where
params(x,y,width,height)

I tried with folowing code, but i got some strange results.

Code worked only wor examles where:
pt1.X = ....61,65,69,...

Please Help, and sorry for my English:)

//INPUT
// pt1 = top-left point ;pt2 = bottom-right point, bmpOrg = Source
Bitmp
public static Bitmap Copy(Point pt1,Point pt2,Bitmap bmpOrg)
{   
           
    int PixelSize = 3;
           
    int width = pt2.X-pt1.X;
    int height = pt2.Y-pt1.Y;

    Bitmap bmpCpy = new Bitmap(width,height);
           
       
    BitmapData bDataOrg = bmpOrg.LockBits(new
Rectangle(0,0,bmpOrg.Width,bmpOrg.Height),ImageLockMode.ReadWrite,bmpOrg.PixelFormat);
    BitmapData bDataCpy =  bmpCpy.LockBits(new
Rectangle(0,0,bmpCpy.Width,bmpCpy.Height),ImageLockMode.ReadWrite,bmpOrg.PixelFormat);

    unsafe
    {
           byte *pCpy = (byte*)bDataCpy.Scan0;
           byte *pOrg = (byte*)bDataOrg.Scan0;

        int nOffset = bDataOrg.Stride - bmpOrg.Width*PixelSize;
           int nWidth = bmpOrg.Width * PixelSize;

            for (int i=0;i<bmpOrg.Height;i++)
            {
                for (int j=0;j<bmpOrg.Width;j++)
                {
                    //Copy from desired area
                               if(j>=pt1.X && j<pt2.X && i>=pt1.Y &&
i<pt2.Y)
                   {
                           pCpy[0] = pOrg[0];
                       pCpy[1] = pOrg[1];
                    pCpy[2] = pOrg[2];
                           
                    pCpy+=3;
                }
                pOrg+=3;;
            }
            pOrg+=nOffset;
        }
    }   
           
    bmpOrg.UnlockBits(bDataOrg);
    bmpCpy.UnlockBits(bDataCpy);
           
    return bmpCpy;
}