VC 用发音函数Beep()播放简谱音乐

Win32 API中有个非常有意思的发音函数Beep()，可以用它在扬声器上播放简单的音调，如果按简谱来设置播放的内容，就可以播放一些简单的音乐了。

 

函数原型：

BOOL WINAPI Beep(

  __in          DWORD dwFreq,

  __in          DWORD dwDuration

);

函数说明：

第一个参数表示频率，用Hz为单位，可以在0x25到0x7FFF之间。

第二个参数表示持续的时间，以毫秒为单位。

 

与这个函数类似的是：

BOOL WINAPI MessageBeep(

  __in          UINT uType

);

这个函数使用要广泛的多。相当多的程序在MessageBox()之前都会调用MessageBeep()来发出一些提示音（实际上是播放系统音乐文件）。

可供选择的参数有：

MB_ICONASTERISK 0x00000040L	SystemAsterisk
MB_ICONEXCLAMATION 0x00000030L	SystemExclamation
MB_ICONHAND 0x00000010L	SystemHand 警告音
MB_ICONQUESTION 0x00000020L	SystemQuestion
MB_OK 0x00000000L	SystemDefault

 

 

 

再附上本人收藏的几个用Beep()播放音乐的程序，虽然音质无法与音频文件媲美，但做个小小的娱乐还是可以的：

// 播放  生日快乐

#include <windows.h>

void main(void)  

{  

    unsigned FREQUENCY[] = {392,392,440,392,523,494,  

              392,392,440,392,587,523,  

              392,392,784,659,523,494,440,  

              689,689,523,587,523};  

 

    unsigned DELAY[] = {375,125,500,500,500,1000,  

              375,125,500,500,500,1000,  

              375,125,500,500,500,500,1000,  

              375,125,500,500,500,1000};  

    int i;  

    for (i = 0; i < 25; i++)  

    {  

              Beep(FREQUENCY[i], DELAY[i]);  

    }  

} 

 

 

// 播放  小酒窝

#include<iostream.h>

#include<windows.h>

 

enum fy{

       d1 = 262,

       d1_ = 277,

       d2 = 294,

       d2_ = 311,

       d3 = 330,

       d4 = 349,

       d5 = 392,

       d5_= 415,

       d6 = 440,

       d6_= 466,

       d7 = 494,

       z1 = 523,

       z1_ = 554,

       z2 = 578,

       z2_ = 622,

       z3 = 659,

       z4 = 698,

       z4_ = 740,

       z5 = 784,

       z5_ = 831,

       z6 = 880,

       z6_ = 932,

       z7 = 988,

       g1 = 1046,

       g1_ = 1109,

       g2 = 1175,

       g2_ = 1245,

       g3 = 1318,

       g4 = 1397,

       g4_ = 1480,

       g5 = 1568,

       g5_ = 1661,

       g6 = 1760,

       g6_ = 1865,

       g7 = 1976,

       yaya = 0

};

 

struct yf

{

       enum fy s;

       int t;

};

 

int main()

{

       int n = 0;

 

       struct yf a[1000]={{z3,125},{z3,50},{z4,100},{z3,50},{z2,50}, //5

       {z2,125},{z2,50},{z5,100},{z2,50},{z1,50}, //10

       {z1,125},{z1,50},{z6,100},{z5,100},    //14

       {z3,125},{z4,25},{z3,25},{z2,100},{z2,100}, //19

       {z3,125},{z3,50},{z4,100},{z5,50},{z3,50}, //24

       {z5,125},{z5,50},{g2,100},{z7,50},{g1,50}, //29

       {g1,200},{g1,50},{z7,50},{z6,50},{z7,50}, //34

       {g1,125},{z7,50},{g1,200},      //37

       {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{z3,50},{z5,50}, //44

       {z5,250},{z6,50},{z7,50},      //47

       {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{g2,100},{g3,100}, //54

       {g3,300},{z6,50},{z7,50},   //57

       {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{g3,100}, //63

       {z7,50},{z6,50},{z7,50},{z6,50},{z7,50},{z5,50},{z5,50},{g1,50}, //71

       {g1,200},{g3,75},{g4,25},{g4,50},{g3,50}, //76

       {g2,200},{yaya,50},{z5,50},{g1,50},{g2,50}, //81

       {g3,50},{g1,50},{g1,50},{z5,50},{z5,100},{z5,50},{g3,50}, //88

       {g2,50},{g3,50},{g2,50},{g1,50},{z5,50},{z5,50},{z6,50},{z7,50}, //96

       {g1,50},{z6,50},{z6,50},{z3,50},{z3,100},{yaya,50},{z7,50}, //103

       {g1,50},{z7,50},{g1,50},{g2,50},{z6,50},{z5,50},{z5,100}, //110

       {z6,100},{z5,50},{z6,50},{z7,100},{g3,50},{g4,50}, //116

       {g3,50},{g4,50},{g3,50},{g2,50},{g2,50},{g1,100},{z5,50}, //123

       {z5,50},{z4,50},{z4,50},{g1,50},{g1,50},{g3,50},{g3,50},{g1,50}, //131

       {g2,200},{yaya,50},{z5,50},{g1,50},{g2,50}, //136

       {g3,50},{g1,50},{g1,50},{z5,50},{z5,100},{z5,50},{g3,50}, //143

       {g2,50},{g3,50},{g2,50},{g1,50},{z5,50},{z5,50},{z6,50},{z7,50}, //151

       {g1,50},{z6,50},{z6,50},{z3,50},{z3,100},{z3,50},{z7,50}, //158

       {g1,50},{z7,50},{g1,50},{g2,50},{z6,50},{z5,50},{z5,100}, //165

       {z6,50},{z7,50},{g1,50},{g2,100},{g3,50},{g4,50}, //171

       {g3,50},{g4,50},{g2,50},{g1,50},{g2,50},{g1,50},{g1,100}, //178

       {g2,50},{g1,50},{g2,50},{z6,50},{g1,100},{g2,50},{g1,50}, //185

       {g1,400},   //186

       {g2,50},{g1,50},{g2,50},{z6,50},{z7,100},{z7,50},{g1,50}, //193

       {g1,400},   //194

       };

 

       struct yf *atop;

       atop = a;

       n = 194;

 

       while(n--)

       {

              Beep(atop->s,atop->t*5);

              atop++;

       }

       return 0;

}

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