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;
}

http://www.cnblogs.com/morewindows/archive/2011/08/15/2139544.html