OPENFILENAME ofn;
WCHAR* szFile = new WCHAR[512];
WCHAR* szFileTitle = new WCHAR[512];
memset(&ofn, 0, sizeof(ofn));
memset(szFile, 0, sizeof(WCHAR)*512);
memset(szFileTitle, 0, sizeof(WCHAR)*512);

ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = yMain->m_hWnd;
ofn.hInstance = yMain->m_hInst;
ofn.lpstrFilter = L"All File/0*.*/0";
ofn.nFilterIndex = 1;
ofn.lpstrFile = szFile;
ofn.nMaxFile = sizeof(WCHAR)*512;
ofn.lpstrFileTitle = szFileTitle;
ofn.nMaxFileTitle = sizeof(WCHAR)*512;
ofn.Flags = OFN_FILEMUSTEXIST | OFN_EXPLORER;

// 按下確定按鈕
BOOL ok = GetOpenFileName(&ofn);
if( ok ){
MessageBox(hWnd, L"23", L"44", MB_OK);
}

delete []szFile;
delete []szFileTitle;

WCHAR* szFile = new WCHAR[512];
WCHAR* szFileTitle = new WCHAR[512];