internal void Native_EnableScrollBar(bool enable, int orientation)
{
var oriV = orientation == NativeMethods.SB_VERT;
var oriH = orientation == NativeMethods.SB_HORZ;
if (enable)
{
if (oriV && vscroll == null)
{
vscroll = new VScrollBar();
vscroll.Anchor = AnchorStyles.Top | AnchorStyles.Right | AnchorStyles.Bottom;
vscroll.uwfSystem = true;
vscroll.ValueChanged += Scroll_ValueChanged;
Controls.Add(vscroll);
uwfOnVScrollAdded(EventArgs.Empty);
}
if (oriH && hscroll == null)
{
hscroll = new HScrollBar();
hscroll.Anchor = AnchorStyles.Left | AnchorStyles.Bottom | AnchorStyles.Right;
hscroll.uwfSystem = true;
hscroll.ValueChanged += Scroll_ValueChanged;
Controls.Add(hscroll);
uwfOnHScrollAdded(EventArgs.Empty);
}
}
else
{
if (oriV && vscroll != null)
{
vscroll.Value = 0; // Reset view.
vscroll.ValueChanged -= Scroll_ValueChanged;
vscroll.Dispose();
vscroll = null;
}
if (oriH && hscroll != null)
{
hscroll.Value = 0; // Reset view.
hscroll.ValueChanged -= Scroll_ValueChanged;
hscroll.Dispose();
hscroll = null;
}
}
}
