Slider Alignment

[6142]

Hello,

I'm working with a slider control.Its orientation is horizontal.
I've positioned the slider control inside an MFC Dialog.
I need the slider to be position exactly in the middle of the control ,
I need the slider to be aligned to the center.
when I mean the "Slider" I mean the line which upon the small button moves.
I mean that the line will be in the middle of the control no matter what size is it.

But when i increase the height of the slider control the slider is always aligned to the
top.Does anyone knows how to change the slider to appear in the middle ?

Thanks , Ron