>>Mike,
>>
>>What about just going to the Windows display settings and configure it to use wider scrollbars?
>>
>>>I am working on a touch screen application. The problem with using the native listbox, is the scroll bar/slider on the right is too small for my users fingers. Similarly the slider on a grid is too small so what I've done is create a class like this.
> A possible idea, but I would like to do this under my control. i.e. not affect any other applications running on the machine.
>
>There is a second part of the app, that wouldbe run in the office, not on the shop floor. It would need things to be normal size, as user would have a mouse etc.
>
>Now, if there was a way toresize these scrollbars for one application only...
>Any ideas about this?
>
>TIA,
>Mike

It is possible that you may need to use SystemParametersInfo Windows API for this (check sample at FAQ # 7959)