procedure TForm1.wmNCLButtonDown(var Msg: TWMNCLButtonDown); begin
if Msg.HitTest = HTHELP then
begin Msg.Result := 0; // swallow mouse down on biHelp border icon end
else
inherited; end;
procedure TForm1.wmNCLButtonUp(var Msg: TWMNCLButtonUp); begin
if Msg.HitTest = HTHELP then
begin Msg.Result := 0;
ShowMessage('Hi!'); // Show your help here end
else
inherited; end;