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;
}