Slider Control

Hi all,
This is my problem. I'm using slider control in a propertypage. I want the apply button to be enabled when the slider control is changed.There is no notification for this. I tried several ways but didn't work. How can I implement this?Anyone knows how to do this? Please inform me.

thanks
bye

Set the WM_HSCROLL or WM_VSCROLL message. Whenever you click on the slider thumb or use the keyboard arrows or page buttons the OnHScroll or OnVScroll function is called. This is where you would activate the apply button.