Add values to byte array [duplicate]

Question

I have a byte array which contains an image; I converted the image to byte array using this method:

public byte[] imageToByteArray(System.Drawing.Image imageIn)
{
 MemoryStream ms = new MemoryStream();
 imageIn.Save(ms,System.Drawing.Imaging.ImageFormat.Gif);
 return  ms.ToArray();
}

This is the byte array:

Bitmap bmp =  Image.FromFile("xxx");
byte[] buffer = ImageToByteArray(bmp);

Now I would like to add some minor minor information about the image in the byte array,such as the position it should be drawn to,etc.

How could it be done? Lets say i want to add these 2 values:1209,540.

If you want to convert "int" to byte and then append them to the memory stream, you could use the BinaryWriter: writer = new BinaryWriter(ms); writer.Write((int)1209); writer.Write((int)540); — Stefan
– Stefan, Commented Aug 14, 2015 at 12:00

Dimitris Batsougiannis · Accepted Answer · 2015-08-14 11:58:21Z

0

First I don't think you can use these values 1209,540 since byte's max val is 255.

But if your values are between that range 0-255, why don't you add two bytes at the end of the array and when the conversion is to be made remove the last two values?

answered Aug 14, 2015 at 11:58

Dimitris Batsougiannis

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2 Comments

Slashy Over a year ago

would'nt it be posibble to convert these values to byte type?

Dimitris Batsougiannis Over a year ago

@Slashy No, an unsigned can store from 0 to 255. The other way would be to wrap this array in a class where you'd declare another property containing the extra values you'd like to pass!

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