Native.SCROLLINFO GetScrollInfo(Native.SB sb)
{
Native.SCROLLINFO si = new Native.SCROLLINFO();
si.cbSize = Marshal.SizeOf(typeof(Native.SCROLLINFO));
si.fMask = Native.SIF.ALL;
Native.GetScrollInfo(new HandleRef(this, base.Handle), sb, ref si);
return(si);
}
void InternalUpdateScrollBars(bool vRedraw, bool hRedraw, bool redrawNow)
{
if (this.IsHandleCreated && Visible)
{
HandleRef handle = new HandleRef(this, this.Handle);
Native.SCROLLINFO v = new Native.SCROLLINFO();
v.cbSize = Marshal.SizeOf(typeof(Native.SCROLLINFO));
v.fMask = Native.SIF.ALL;
v.nMin = 0;
v.nMax = scrollBarsInfo.scrollSize.Height;
v.nPage = ClientRectangle.Height;
v.nPos = scrollBarsInfo.scrollPos.Y;
v.nTrackPos = 0;
Native.SetScrollInfo(handle, Native.SB.VERT, ref v, redrawNow && vRedraw);
Native.SCROLLINFO h = new Native.SCROLLINFO();
h.cbSize = Marshal.SizeOf(typeof(Native.SCROLLINFO));
h.fMask = Native.SIF.ALL;
h.nMin = 0;
h.nMax = scrollBarsInfo.scrollSize.Width;
h.nPage = ClientRectangle.Width;
h.nPos = scrollBarsInfo.scrollPos.X;
h.nTrackPos = 0;
Native.SetScrollInfo(handle, Native.SB.HORZ, ref h, redrawNow && hRedraw);
if (!redrawNow)
{
scrollBarsInfo.vRedraw |= vRedraw;
scrollBarsInfo.hRedraw |= hRedraw;
if (!scrollBarsInfo.repaintPosted)
{
Native.PostMessage(handle, ScrollBarsInfo.WM_REPAINTSCROLLBARS, IntPtr.Zero, IntPtr.Zero);
scrollBarsInfo.repaintPosted = true;
}
}
}
}
