I am now facing one problem which to get the live image from Camera (eg. Sony, Canon) into winform and also control the camera capture button from a button in the form.
Emgu cv is a project that provides all the bindings for OpenCV. I've used it on both Windows and Linux platforms (Mono) with great success.
http://emgu.com/ http://emgu.com/wiki/index.php/Camera_Capture_in_7_lines_of_code