Implementing a slider for plugin

Hello everyone,

I need to implement a slider for my plugin. I have used CSliderWidget which is defined in widgets.fh file in InDesign SDK.But slider handle can't be moved with the mouse or by using the arrow keys.InDesign UI also used sliders (Edit > Preferences > Interface > options ).Do u have any idea of implementing this slider?

I appreciate your help.

Thank in advance.