private int ScrollThumbPosition(int fnBar)
{
var si = new NativeMethods.SCROLLINFO
{
fMask = NativeMethods.SIF_TRACKPOS
};
NativeMethods.GetScrollInfo(new HandleRef(this, Handle), fnBar, si);
return(si.nTrackPos);
}
public void UpdateScrollInfo()
{
if (!_parentControl.IsHandleCreated || !Visible)
{
return;
}
var si = new NativeMethods.SCROLLINFO
{
cbSize = Marshal.SizeOf(typeof(NativeMethods.SCROLLINFO)),
fMask = NativeMethods.SIF_ALL,
nMin = 0,
nMax = Maximum,
nPage = LargeChange,
nPos = Value,
nTrackPos = 0
};
NativeMethods.SetScrollInfo(new HandleRef(_parentControl, _parentControl.Handle), _orientation, si, true);
}