public CommandResult ClearScreen()
{
ConnectionTag tag = GEnv.Connections.FindTag(_connection);
TerminalDocument doc = tag.Document;
lock (doc) {
GLine l = doc.TopLine;
int top_id = l.ID;
int limit = l.ID + _connection.TerminalHeight;
while (l != null && l.ID < limit)
{
l.Clear();
l = l.NextLine;
}
doc.CurrentLineNumber = top_id;
doc.CaretColumn = 0;
doc.InvalidateAll();
if (tag.Pane != null)
{
GEnv.TextSelection.Clear();
tag.Pane.Invalidate();
}
}
return(CommandResult.Success);
}
