I have ovridden the OnPaint() function of a CSliderCtrl control and I was wondering if there is a way to make the Thumb bigger. The bitmap I want to BitBlt to the Thumb is bigger than the Thumb, as a result when the thumb is moved the parts of the bitmap that overlap the thumb control don't move with the rest of the thumb....

I know there is a GetThumbRect() function, but I did this

CRect thumb;
GetThumbRect(&thumb);
thumb.right += 4;




but this did not increase the size of the thumb control?

any help would be appreciated!! thanks