关于playsound函数

Question

我在VS2017里调用Playsound函数，但是该函数找不到wav的位置发出了缺省声音，求大佬帮我解决下~代码如下：

#include <iostream>
#include <stdlib.h>
#include <Windows.h>
#include <conio.h>
#include <mmsystem.h>
#pragma comment(lib,"WINMM.LIB")
using namespace std;
int main()
{
 int a = _getch();
 if (a == 'a')
 {
  PlaySound((LPCWSTR)"E:\\K.wav",NULL, SND_FILENAME|SND_ASYNC);
 }
 system("pause");
 return 0;
}

Answer 1

Hi BEAT_Heart,

感谢在MSDN论坛发帖。

根据MSDN官方文档，PlaySound（）采用LPCTSTR（const TCHAR *）作为输入。在WinDef.h中，TCHAR映射到wchar_t或char取决于是否定义了UNICODE。

#ifdef UNICODE
 typedef LPCWSTR LPCTSTR; 
#else
 typedef LPCSTR LPCTSTR;
#endif

所以建议你尝试以下几种方式。

PlaySoundW(TEXT("E:\\K.wav"), NULL, SND_FILENAME|SND_ASYNC);
PlaySoundW(L"E:\\K.wav", NULL, SND_FILENAME|SND_ASYNC);

在我的Win10， vs2017上测试可以正常播放。

希望对你有所帮助。

Best Regards,

Sera Yu

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