/// <summary>
/// Handle key down event for selection, copy and scrollbars handling.
/// </summary>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (_htmlContainer != null)
{
_htmlContainer.HandleKeyDown(this, e);
}
if (e.KeyCode == Keys.Up)
{
VerticalScroll.Value = Math.Max(VerticalScroll.Value - 70, VerticalScroll.Minimum);
PerformLayout();
}
else if (e.KeyCode == Keys.Down)
{
VerticalScroll.Value = Math.Min(VerticalScroll.Value + 70, VerticalScroll.Maximum);
PerformLayout();
}
else if (e.KeyCode == Keys.PageDown)
{
VerticalScroll.Value = Math.Min(VerticalScroll.Value + 400, VerticalScroll.Maximum);
PerformLayout();
}
else if (e.KeyCode == Keys.PageUp)
{
VerticalScroll.Value = Math.Max(VerticalScroll.Value - 400, VerticalScroll.Minimum);
PerformLayout();
}
else if (e.KeyCode == Keys.End)
{
VerticalScroll.Value = VerticalScroll.Maximum;
PerformLayout();
}
else if (e.KeyCode == Keys.Home)
{
VerticalScroll.Value = VerticalScroll.Minimum;
PerformLayout();
}
}