(C++) HotKey of MFC

有兩種方法實現HotKey

首先 UIDialog : public CDialog

第一種方法

UIDialog.h

LONG OnHotKey(WPARAM wParam, LPARAM lParam);

UIDialog.cpp

BEGIN_MESSAGE_MAP(UIDialog, ...)
    //{{AFX_MSG_MAP(CMainFormView)
    ON_MESSAGE(WM_HOTKEY,  OnHotKey)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

添加     RegisterHotKey(GetSafeHwnd(),m_nHotKeyID_CS,MOD_CONTROL,'V'); 到方法 InitDialog() 中

LONG CMainFormView::OnHotKey(WPARAM wParam, LPARAM IParam)
{

    UINT uVirtKey = (UINT) HIWORD(IParam);
    if(uVirtKey == 'V'){
        ...
    }
    return 0;
}

第二種方法

監聽View 中Key Event

添加 virtual BOOL PreTranslateMessage 到  UIDialog 中

UIDialog.h

// Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CMainFormView)

    public:

    virtual BOOL PreTranslateMessage(MSG* pMsg);

    protected:
    virtual void DoDataExchange(CDataExchange* pDX);
    //}}AFX_VIRTUAL

UIDialog.cpp

BOOL UIDialog::PreTranslateMessage(MSG* pMsg)

{

   if(pMsg->message == WM_KEYDOWN){}

}