Question

I have a problem with displaying an image it’s bytes comes to my pc serial port as chunks of data, 32 bytes at a time, how to keep all the incoming bytes in the same memory stream, then how can I display this image in a picture box

Here is a piece of code

if (((int)header[0] == 0x76) && (header[1] == 0x00) && (header[2] == 0x32) && (header[3] == 0x00) && (header[4] == 0x00)) /// the header is true ,read the image bytes
{
    for (int i = 0; i < 32; i++)
        Jpg[i] = (byte)CamPort.ReadByte();

    fs.Write(Jpg, 0, Jpg.Length);

    for (int i = 1; i < Jpg.Length; i++)
    {
        if ((Jpg[i - 1] == 0xFF) && (Jpg[i - 0] == 0xD9))// reaching the last two bytes(FF D9) of Jpg //
        {
            EndFlag = true;
            MessageBox.Show("done");
            //OneSnap.Image = Image.FromStream(fs);
            fs.Close();
        }
    }
}
else
{
    MessageBox.Show("DONE");
}

Answer 1

I would just use a nested loop and add 32 bytes at a time to a larger array.

int offset = 0;
for(int i = 0; i < total; i++){
    for(int j = 0; j < 32; j++){
        offset = i * 32;
        jpg[offset + j] = (byte)CamPort.ReadByte();
    }
 }

Something like that should get all your data into one array, then you can do manipulation with/on that data. From there it should be a relatively straight-forward matter to display the data in whichever fashion you’d like.