Taking a still image from the USB Video Capture Device is as
The snapshot button on USB Video Capture Device is used to
capture a still picture, this function must be supported by TWAIN
driver. The TWAIN driver can be activated by the image editing
software, like Windows Imaging.
In this case, the snapshot button will be enable only when the
image editing software is activated.
From the "file" on the menu bar, choose "select scanner" function
to select the desired device for capturing images. After selecting,
from the "file" menu bar choose "Scan New" and the user can
capture still pictures by pressing the snapshot button or click the
capture button on the screen.