请问怎么样才能用WINCC蜂鸣器报警，不用音箱就能发声，并能跳出报警确认画面，我在网上下了一个程序，
程序如下：
在全局脚本里面新建一个循环的东东，可以设置 2s，代码如下



#include "apdefap.h"


int gscAction( void )

{

MSG_RTDATA_STRUCT mRT;

int i;

char* pszToken;

//Now is my code

#pragma code("Winmm.dll")

BOOL WINAPI sndPlaySoundA(char* szWave,DWORD dwFlag);

#pragma code()

DWORD SND_ASYNC=0x0001;

DWORD SND_LOOP=0x0008;


DWORD alarmsum,alarmunack;

LPCMN_ERROR errorunack,errorsum;

#pragma code("msrtcli.dll")

#pragma code()

LPDWORD lpdwServiceID;

MSG_SERVICE_NOTIFY_PROC lpfnNotifyProc;

LPMSG_FILTER_STRUCT lpMsgFilter;

DWORD dwNotifyMask;

LPVOID lpvUser;

LPCMN_ERROR lpError;

BOOL n1;


n1=MSRTGetMsgQuit(&alarmunack,errorunack);

SetTagDWord("number",alarmunack);


MSRTGetMsgActual(&alarmsum,errorsum);

SetTagDWord("sum",alarmsum);


if (alarmsum==0)

sndPlaySoundA(NULL,SND_ASYNC);


else

{

if (alarmunack>0)

sndPlaySoundA("C:\\Program Files\\Windows NT\\Pinball\\SOUND36.WAV",SND_ASYNCSND_LOOP);

else

sndPlaySoundA(NULL,SND_ASYNC);


//sndPlaySoundA("C:\\windows\\media\\office97\\laser.wav",SND_ASYNCSND_LOOP);



}


return 1;

}

但我试了一下不行，详细的该怎么弄呢
请叫高手帮我看看
我的QQ号是32894083