C#•2y ago

Socket Identification Help & Sending Bitmaps

        private static void SendScreen()
        {
            MemoryStream ms = new MemoryStream();
            ms.Write(Encoding.ASCII.GetBytes("screen:"), 0, Encoding.ASCII.GetBytes("EOF").Length);
            Helpers.GetScreen().Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
            var imageData = ms.ToArray();
            var lengthData = BitConverter.GetBytes(imageData.Length);
            ClientSocket.Send(imageData, 0, imageData.Length, SocketFlags.None);
        }

        private static void SendScreen()
        {
            MemoryStream ms = new MemoryStream();
            ms.Write(Encoding.ASCII.GetBytes("screen:"), 0, Encoding.ASCII.GetBytes("EOF").Length);
            Helpers.GetScreen().Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);
            var imageData = ms.ToArray();
            var lengthData = BitConverter.GetBytes(imageData.Length);
            ClientSocket.Send(imageData, 0, imageData.Length, SocketFlags.None);
        }

This is my void to send a bitmap of the screen but I do not know how to do packet identification with sending an image & how to do it with integers instead of strings

11 Replies

Buddy•2y ago

Make a packet system, you can use MessagePack for help with serialization / deserialization of packets.

Boop•2y ago

            byte[] recBuf = new byte[received];
            Array.Copy(buffer, recBuf, received);
            string text = Encoding.ASCII.GetString(recBuf);
            Console.WriteLine("Received Text: " + text);
            string[] brokenText = text.Split(":".ToCharArray());
            Console.WriteLine("EventName: " + brokenText[0]);

            byte[] recBuf = new byte[received];
            Array.Copy(buffer, recBuf, received);
            string text = Encoding.ASCII.GetString(recBuf);
            Console.WriteLine("Received Text: " + text);
            string[] brokenText = text.Split(":".ToCharArray());
            Console.WriteLine("EventName: " + brokenText[0]);

this is what I got atm

Buddy•2y ago

As for how you can identify users, send a token with the packet that contains the identification of the user.

Boop•2y ago

what I have is a client connects to a socket server but when they send data, I want to know what data they are sending, the purpose of it

Buddy•2y ago

header | payload length | payload That's usually the structure of packets

Boop•2y ago

is it initial data, is it a screen yeah so when I do socket.Send where can I put an identifier to tell the server what it even is anyone?

canton7•2y ago

You were just told how to solve that?

Unknown User•2y ago

Message Not Public

canton7•2y ago

(it doesn't have to be MessagePack of course -- any serialization format works. The point is being able to pack multiple bits of data into a single string / byte sequence, in a way in which you can unpack them again at the other end)

Unknown User•2y ago

Message Not Public

Boop•2y ago

no? anyone?

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Socket Identification Help & Sending Bitmaps