Hi guillaume,

I think the only way is to send the appropriate message to the right Hwnd. It takes a tool like SPY++ to find out the right name of the window, and you'll have to lookup the value of the mousewheel up and mousewheel down message.

Walter,

>Hi,
>
>I was wondering if there's a possibility to trigger the Scrollbar of the viewer itself, because we'd like to use our pageup-down keys to scroll.
>The keypresses are captured, that's no problem. However, I can't seem to find any method of the ocx to do this.
>
>Any ideas someone?