The Grab Tool takes (grabs) a picture from the camera.
Camera
Number
The Camera
Number refers to the camera's index number. If more than one
camera is connected to the machine then they can be selected using this
number.
Frame Number
The Frame Number refers to the frame or picture to be taken.
Toggle Frames
When the Toggle Frames box is checked the grab tool will toggle between frames 1 and 2. This allows one image to be
processed while another is being grabbed.