Beispiel #1
0
 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);
 }
Beispiel #2
0
        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;
                    }
                }
            }
        }