hWndC = capCreateCaptureWindow ( (LPSTR) "My Capture Window", // window name if pop-up WS_CHILD | WS_VISIBLE, // window style 1, 1, 160, 120, // window position and dimensions (HWND) hwnd, (int) nID /* child ID */); SendMessage (hWndC, WM_CAP_DRIVER_CONNECT, 0, 0L); capPreviewRate(hWndC, 30); // rate, in milliseconds capPreview(hWndC, TRUE); // starts preview