TBM_SETRANGEMIN Overview Group

The TBM_SETRANGEMIN message sets the minimum logical position for the slider in a trackbar.

TBM_SETRANGEMIN 

wParam = (WPARAM) fRedraw; 

lParam = (LPARAM) lMinimum;

Parameters

fRedraw: Redraw flag. If this parameter is TRUE, the message redraws the trackbar after the range is set. If this parameter if FALSE, the message sets the range but does not redraw the trackbar.
lMinimum: Minimum position for the slider.

No return value.

If the current slider position is less than the new minimum, the TBM_SETRANGEMIN message sets the slider position to the new minimum value.