VC程序中定制对话框中的回车键(5)

//////////// frame window
class CMainFrame : public CFrameWnd {
protected:
　virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
public:
　CMainFrame();
　~CMainFrame();
};

//////////////////// Typical dialog
class CMyDlg : public CDlgWithAccelerators {
public:
　CMyDlg(CWnd* pParent = NULL); // standard constructor
protected:
　HICON m_hIcon;
　void NextInTabOrder();
　// MFC overrides
　virtual BOOL OnInitDialog();
　afx_msg void OnMyEnter();
　afx_msg LRESULT OnGetDefID(WPARAM wp, LPARAM lp);
　DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP(CMyApp, CWinApp)
END_MESSAGE_MAP()

CMyApp::CMyApp()
{
　// nothing to do
}

CMyApp::~CMyApp()
{
　// nothing to do
}

//////////////////// InitInstance: create dialog as child
BOOL CMyApp::InitInstance()
{
　// create frame window and load it
　CMainFrame* pFrame = new CMainFrame;
　m_pMainWnd = pFrame;
　pFrame->LoadFrame(IDR_MAINFRAME, WS_OVERLAPPED, NULL, NULL);
　CMyDlg dlg(pFrame); // create dialog and run it
　int nResponse = dlg.DoModal();
　if (nResponse == IDOK)
　{}
　else if (nResponse == IDCANCEL)
　{}
　return FALSE; // quit
}

CMainFrame::CMainFrame()
{
　// nothing to do
}

CMainFrame::~CMainFrame()
{
　// nothing to do
}

///////////// Pre-create window: set WS_EX_TOOLWINDOW style to hide dialog from task bar
BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
　if (CFrameWnd::PreCreateWindow(cs)) {
　　cs.dwExStyle |= WS_EX_TOOLWINDOW;
　　return TRUE;
　}
　return FALSE;
}