/// <summary>
/// Sends an operator key to the mainframe.
/// </summary>
/// <param name="op"></param>
/// <returns></returns>
public bool SendKeyOp(KeyboardOp op)
{
var success = false;
lock (tn)
{
// These can go to a locked screen
if (op == KeyboardOp.Reset)
{
success = true;
}
else
{
if ((tn.Keyboard.keyboardLock & KeyboardConstants.OiaMinus) != 0 ||
tn.Keyboard.keyboardLock != 0)
{
success = false;
}
else
{
// These need unlocked screen
switch (op)
{
case KeyboardOp.AID:
{
var v = (byte)typeof(AID).GetField(op.ToString()).GetValue(null);
tn.Keyboard.HandleAttentionIdentifierKey(v);
success = true;
break;
}
case KeyboardOp.Home:
{
if (tn.IsAnsi)
{
Console.WriteLine("IN_ANSI Home key not supported");
//ansi_send_home();
return(false);
}
if (!tn.Controller.Formatted)
{
tn.Controller.SetCursorAddress(0);
return(true);
}
tn.Controller.SetCursorAddress(
tn.Controller.GetNextUnprotectedField(tn.Controller.RowCount *
tn.Controller.ColumnCount - 1));
success = true;
break;
}
case KeyboardOp.ATTN:
{
tn.Interrupt();
success = true;
break;
}
default:
{
throw new ApplicationException("Sorry, key '" + op + "'not known");
}
}
}
}
}
return(success);
}