获取各磁盘根目录

代码如下：

DWORD dirlen = GetLogicalDriveStrings(0, NULL);HANDLE hp    = GetProcessHeap();LPTSTR pdir  = (LPTSTR)HeapAlloc(hp, HEAP_ZERO_MEMORY, 2*dirlen);GetLogicalDriveStrings(dirlen, pdir);LPTSTR ptmp = pdir;while ( *pdir != 0 ){//m_cnDisk.AddString(pdir);pdir = wcsrchr(pdir, 0) + 1;}HeapFree(hp, HEAP_NO_SERIALIZE, ptmp);