I searched and found out that in VC++ 2008 can use this

  textBox1.Text = "Line One";

  textBox1.Text += **Environment::NewLine**;

  textBox1.Text += "Line Two";

Hope it help you! :)

Hi! Please tell me about dithering algorithm clearly. I try to change color depth of bmp 24 bits to 4 bits, but my algorithm is not good...Then someone tell me about dithering, but not clearly, they don't give me an algorithm or clear idea but that's an introduction about dithering...So if you can, please tell me about dithering algorithm clearly. Thanks and waiting for your replies. Best regards, FlytotheBlueSky