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：

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

[cpp] view plain copy print

1. // 播放  生日快乐  
2. #include   
3. void main(void)     
4. {     
5.     unsigned FREQUENCY[] = {392,392,440,392,523,494,     
6.         392,392,440,392,587,523,     
7.         392,392,784,659,523,494,440,     
8.         689,689,523,587,523};     
9.   
10.     unsigned DELAY[] = {375,125,500,500,500,1000,     
11.         375,125,500,500,500,1000,     
12.         375,125,500,500,500,500,1000,     
13.         375,125,500,500,500,1000};     
14.     int i;     
15.     for (i = 0; i < >
16.     {     
17.         Beep(FREQUENCY[i], DELAY[i]);     
18.     }     
19. }   

小酒窝

[cpp] view plain copy print

1. // 播放  小酒窝  
2. #include  
3. #include  
4.   
5. enum fy{  
6.     d1 = 262,  
7.     d1_ = 277,  
8.     d2 = 294,  
9.     d2_ = 311,  
10.     d3 = 330,  
11.     d4 = 349,  
12.     d5 = 392,  
13.     d5_= 415,  
14.     d6 = 440,  
15.     d6_= 466,  
16.     d7 = 494,  
17.     z1 = 523,  
18.     z1_ = 554,  
19.     z2 = 578,  
20.     z2_ = 622,  
21.     z3 = 659,  
22.     z4 = 698,  
23.     z4_ = 740,  
24.     z5 = 784,  
25.     z5_ = 831,  
26.     z6 = 880,  
27.     z6_ = 932,  
28.     z7 = 988,  
29.     g1 = 1046,  
30.     g1_ = 1109,  
31.     g2 = 1175,  
32.     g2_ = 1245,  
33.     g3 = 1318,  
34.     g4 = 1397,  
35.     g4_ = 1480,  
36.     g5 = 1568,  
37.     g5_ = 1661,  
38.     g6 = 1760,  
39.     g6_ = 1865,  
40.     g7 = 1976,  
41.     yaya = 0  
42. };  
43.   
44. struct yf  
45. {  
46.     enum fy s;  
47.     int t;  
48. };  
49.   
50. int main()  
51. {  
52.     int n = 0;  
53.   
54.     struct yf a[1000]={{z3,125},{z3,50},{z4,100},{z3,50},{z2,50}, //5  
55.     {z2,125},{z2,50},{z5,100},{z2,50},{z1,50}, //10  
56.     {z1,125},{z1,50},{z6,100},{z5,100},    //14  
57.     {z3,125},{z4,25},{z3,25},{z2,100},{z2,100}, //19  
58.     {z3,125},{z3,50},{z4,100},{z5,50},{z3,50}, //24  
59.     {z5,125},{z5,50},{g2,100},{z7,50},{g1,50}, //29  
60.     {g1,200},{g1,50},{z7,50},{z6,50},{z7,50}, //34  
61.     {g1,125},{z7,50},{g1,200},      //37  
62.     {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{z3,50},{z5,50}, //44  
63.     {z5,250},{z6,50},{z7,50},      //47  
64.     {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{g2,100},{g3,100}, //54  
65.     {g3,300},{z6,50},{z7,50},   //57  
66.     {g1,50},{z7,50},{g1,50},{z7,50},{g1,100},{g3,100}, //63  
67.     {z7,50},{z6,50},{z7,50},{z6,50},{z7,50},{z5,50},{z5,50},{g1,50}, //71  
68.     {g1,200},{g3,75},{g4,25},{g4,50},{g3,50}, //76  
69.     {g2,200},{yaya,50},{z5,50},{g1,50},{g2,50}, //81  
70.     {g3,50},{g1,50},{g1,50},{z5,50},{z5,100},{z5,50},{g3,50}, //88  
71.     {g2,50},{g3,50},{g2,50},{g1,50},{z5,50},{z5,50},{z6,50},{z7,50}, //96  
72.     {g1,50},{z6,50},{z6,50},{z3,50},{z3,100},{yaya,50},{z7,50}, //103  
73.     {g1,50},{z7,50},{g1,50},{g2,50},{z6,50},{z5,50},{z5,100}, //110  
74.     {z6,100},{z5,50},{z6,50},{z7,100},{g3,50},{g4,50}, //116  
75.     {g3,50},{g4,50},{g3,50},{g2,50},{g2,50},{g1,100},{z5,50}, //123  
76.     {z5,50},{z4,50},{z4,50},{g1,50},{g1,50},{g3,50},{g3,50},{g1,50}, //131  
77.     {g2,200},{yaya,50},{z5,50},{g1,50},{g2,50}, //136  
78.     {g3,50},{g1,50},{g1,50},{z5,50},{z5,100},{z5,50},{g3,50}, //143  
79.     {g2,50},{g3,50},{g2,50},{g1,50},{z5,50},{z5,50},{z6,50},{z7,50}, //151  
80.     {g1,50},{z6,50},{z6,50},{z3,50},{z3,100},{z3,50},{z7,50}, //158  
81.     {g1,50},{z7,50},{g1,50},{g2,50},{z6,50},{z5,50},{z5,100}, //165  
82.     {z6,50},{z7,50},{g1,50},{g2,100},{g3,50},{g4,50}, //171  
83.     {g3,50},{g4,50},{g2,50},{g1,50},{g2,50},{g1,50},{g1,100}, //178  
84.     {g2,50},{g1,50},{g2,50},{z6,50},{g1,100},{g2,50},{g1,50}, //185  
85.     {g1,400},   //186  
86.     {g2,50},{g1,50},{g2,50},{z6,50},{z7,100},{z7,50},{g1,50}, //193  
87.     {g1,400},   //194  
88.     };  
89.   
90.     struct yf *atop;  
91.     atop = a;  
92.     n = 194;  
93.   
94.     while(n–)  
95.     {  
96.         Beep(atop->s,atop->t*5);  
97.         atop++;  
98.     }  
99.     return 0;  
100. }