How to check if a byte array is a valid image?

Question

I know there is no .Net function that exists for checking, but is there an algorithm or easy and effective way of checking if a byte is a valid image before I use the byte array. I need this because I'm sending different commands to a server who is constantly listening to the client and one of the commands is to get the screenshot of the server's computer.

Answer 1

You can try to generate an image from the byte array and check for the ArgumentException if its not.

public static bool IsValidImage(byte[] bytes) {     try {         using(MemoryStream ms = new MemoryStream(bytes))            Image.FromStream(ms);     }     catch (ArgumentException) {        return false;     }     return true;  }