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：

生日快乐歌曲

 // 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]);
     }
 }

小酒窝

 // 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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