MBCS工程使用GetOpenFileNameW方法防止文件乱码

OPENFILENAMEW ofn;
::memset( &ofn, 0, sizeof( ofn ) );

WCHAR filePath[MAX_PATH] = {0};
ofn.lStructSize     = sizeof( ofn );
ofn.lpstrFile       = filePath;
ofn.lpstrFilter     = L"All files (*.*)\0*.*\0";
ofn.nMaxFile        = MAX_PATH;
ofn.nFilterIndex    = 0;
ofn.lpstrFileTitle  = NULL;
ofn.nMaxFileTitle   = 0;
ofn.lpstrDefExt     = L"";
ofn.Flags           = OFN_EXPLORER | OFN_ENABLESIZING | OFN_HIDEREADONLY;

GetOpenFileNameW( &ofn );