Depending on what are the DC control capabilities you could use a timer in your application to display the picture and to change it at the regular interval.

>I have one digital camera(DC) using usb .
>this DC can capture some pictures.
>Now I want to make my VFP application using this DC.
>my application can capture my pictures and show this
>pictures in VFP form at real time .
>How can I do ?
>thank!