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