在MusicPlayer里折腾了很久的文件夹选择对话框代码，终于在SDK的帮助下完成了。贴下代码：
void SelectFolder(HWND hwnd)
{
LPMALLOC lpMalloc = NULL;
if(SUCCEEDED(SHGetMalloc(&lpMalloc)))
{
TCHAR szPath[MAX_PATH];
BROWSEINFO bi;
LPITEMIDLIST pidl = NULL;
ZeroMemory(szPath, sizeof(szPath));//注意结构体的置零
ZeroMemory(&bi, sizeof(bi));
bi.hwndOwner = hwnd;
bi.pidlRoot = NULL;
bi.pszDisplayName = szPath;
bi.lpszTitle = TEXT(“选择目录：”);
bi.ulFlags = BIF_RETURNONLYFSDIRS | BIF_BROWSEFORCOMPUTER;
bi.lpfn = NULL;
bi.lParam = 0;
bi.iImage = 0;
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);//初始化COM库
if((pidl = SHBrowseForFolder(&bi)) != NULL)//显示文件夹选择对话框并操作
{
SHGetPathFromIDList(pidl, szPath);//转换文件夹路径
FindAllFile(hwnd, szPath, “*.mp3”);//查找文件夹下mp3文件
FindAllFile(hwnd, szPath, “*.wma”);//wma
FindAllFile(hwnd, szPath, “*.wav”);//wav
//MessageBox(NULL, szPath, “”, MB_OK);
}
//CoTaskMemFree(pidl);
lpMalloc->Free(pidl);
lpMalloc->Release();
CoUninitialize();//关闭COM库
}
}
