PlayingWAVEResources的一次尝试.docVIP

第一部分 WinMain.cpp 每当我们打开”酷狗音乐”的时候,总是可以先听到”Hello,Kugou”这样一个声音,其实这个声音文件就在KUGOU的文件夹里面,就是如下图所示的login.wav文件: 我现在的想法是把这个文件当作资源压入到EXE文件里,运行的时候 FindResource、LoadResource、LockResource、sndPlaySound、UnlockResource、FreeResource 到网上查阅MSDN，有一篇《Playing WAVE Resources》,给出了示例代码,地址是: /en-us/library/windows/desktop/dd743679(v=vs.85).aspx 需要加入winmm.lib库,如下图所示: 我改写的如下,只是增加了一个HINSTACE型的参数hInst: BOOL PlayResource(LPSTR lpName,HINSTANCE hInst) { BOOL bRtn; LPSTR lpRes; HANDLE hResInfo, hRes; // Find the WAVE resource. hResInfo = FindResource(hInst, lpName, WAVE); if (hResInfo == NULL) return FALSE; // Load the WAVE resource. // 红色字体是我加的,因为编译器要求explicit cast hRes = LoadResource(hInst, (HRSRC)hResInfo); if (hRes == NULL) return FALSE; // Lock the WAVE resource and play it. lpRes = (LPSTR)LockResource(hRes); if (lpRes != NULL) { bRtn = sndPlaySound(lpRes, SND_MEMORY | SND_SYNC | SND_NODEFAULT); UnlockResource(hRes); } else bRtn = 0; // Free the WAVE resource and return success or failure. FreeResource(hRes); return bRtn; } SND_SYNC是同步地（synchronously）播放,MSDN: The sound is played synchronously and the function does not return until the sound ends. 声音同步播放,函数直到声音结束才返回. 如果想要循环播放的话,要加入SND_LOOP、SND_ASYNC这两个参数。 SND_ASYNC: The sound is played asynchronously and the function returns immediately after beginning the sound. To terminate an asynchronously played sound, call?sndPlaySound?with?lpszSound?set to?NULL. 声音异步播放，声音开始播放后函数立马返回，调用sndPlaySound,并把lpszSound参数设为NULL停止声音播放. SND_LOOP: The sound plays repeatedly until?sndPlaySound?is called again with the?lpszSound?parameter set to?NULL. You must also specify the?SND_ASYNC?flag to loop sounds. 声音重复播放直到sndPlaySound被再次调用,并且lpszSound参数为NULL.你必须指定SND_ASYNC标记. 函数会立即返回,所以我在测试的时候,是这样写WinMain函数的: int WINAPI WinMain(HINSTANCE hInst,HINSTANCE hPrevInstance, LPSTR lpCmdLine,int nShowCmd) { PlayResource(login,hInst)