Newbie00 wrote: Should I delete it in EN_CHANGE automatically? Since I don't know what your program is trying to do and how many of these controls you are using I cannot answer that question. Use the best guess

I think i'm passing correct DC. void TFigure::SetupPixelFormat() { int nPixelFormat = 0; PIXELFORMATDESCRIPTOR pfd = { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,0,0,0, 16, 0, 0, PFD_MAIN_PLANE, 0, 0, 0, 0 }; nPixelFormat = ChoosePixelFormat( m_gHDC, &pfd ); SetPixelFormat( m_gHDC, nPixelFormat, &pfd ); } ChoosePixelFormat( m_gHDC, &pfd ); returns 7. -- modified at 13:35 Monday 15th October, 2007

You're looking for a VNC library. If a part of the screen doesn't change, why transmit it? You're just wasting bandwidth doing that. Google for "vnc vb.net[^]" and you'll find some examples. Dave Kreskowiak Microsoft MVP - Visual Basic

Thanks, I've used the first link (you had given me) to my project and it works I can write/read commands to CMD.exe by clicking buttons :]. All I've to do now is to prepare appropriate commands, and I think, I'll be able to use the application, that I'd mentioned in my question. that's great thanks again for your reply :]

No problem;) WhiteSky