enum {
UM_TASKBAR = WM_USER + 1024,
};

enum {
	UM_TASKBAR = WM_USER + 1024,
	NIN_BALLOONSHOW = (WM_USER + 2),
	NIN_BALLOONHIDE = (WM_USER + 3),
	NIN_BALLOONTIMEOUT = (WM_USER + 4),
	NIN_BALLOONUSERCLICK = (WM_USER + 5),	
};

void TrayIcon::BalloonLeftDown()
{
	WhenBalloonLeftDown();
}
void TrayIcon::BalloonShow()
{
	WhenBalloonShow();
}
void TrayIcon::BalloonHide()
{
	WhenBalloonHide();
}
void TrayIcon::BalloonTimeout()
{
	WhenBalloonTimeout;
}

case NIN_BALLOONSHOW:
	BalloonShow();
	return TRUE;
case NIN_BALLOONHIDE:
	BalloonHide();
	return TRUE;
case NIN_BALLOONTIMEOUT:
	BalloonTimeout();
	return TRUE;
case NIN_BALLOONUSERCLICK:
	BalloonLeftDown();
	return TRUE;

virtual void BalloonLeftDown();
virtual void BalloonShow();
virtual void BalloonHide();
virtual void BalloonTimeout();

Callback        WhenBalloonLeftDown;
Callback        WhenBalloonShow;
Callback        WhenBalloonHide;
Callback        WhenBalloonTimeout;