protected override void OnVisibleChanged(EventArgs e)
{
z80.ResetEventHandler -= Z80_ResetEventHandler;
z80.BeforeExecuteEventHandler -= Z80_BeforeExecuteEventHandler;
z80.AfterExecuteEventHandler -= Z80_AfterExecuteEventHandler;
if (Visible)
{
ShowListing();
Globals.EnsureVisible(Handle);
BringToFront();
Focus();
z80.ResetEventHandler += Z80_ResetEventHandler;
z80.BeforeExecuteEventHandler += Z80_BeforeExecuteEventHandler;
z80.AfterExecuteEventHandler += Z80_AfterExecuteEventHandler;
z80.DoPause();
PClabel.Text = "";
UpdateDisplay(z80);
}
base.OnVisibleChanged(e);
}
