在ATL中能像MFC中一样用PostMessage来响应消息函数吗?
先不说怎样添加消息映射,我在ATL中程序运行到这个函数就出错
问题是怎样在ATL中发出一个消息,然后怎样添加消息映射
先不说怎样添加消息映射,我在ATL中程序运行到这个函数就出错
问题是怎样在ATL中发出一个消息,然后怎样添加消息映射
解决方案 »
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来进行消息循环,ATL中有CWindow类
用PostMessage即可
在接口的实现类中的头文件中有如下的定义
class ATL_NO_VTABLE CMICCard
{
public:
BEGIN_MSG_MAP(CMICCard)
CHAIN_MSG_MAP(CComControl<CMICCard>)
DEFAULT_REFLECTION_HANDLER()
// MESSAGE_HANDLER(WM_POSTMESSAGE,OnPostMessage)
END_MSG_MAP()
}
是否说明不用创建窗口也能进行消息响应?
public CComObjectRootEx<CComSingleThreadModel>,
public IDispatchImpl<IZa, &IID_IZa, &LIBID_TESTV2Lib>,
public CComControl<CZa>,
public IPersistStreamInitImpl<CZa>,
public IOleControlImpl<CZa>,
public IOleObjectImpl<CZa>,
public IOleInPlaceActiveObjectImpl<CZa>,
public IViewObjectExImpl<CZa>,
public IOleInPlaceObjectWindowlessImpl<CZa>,
public IPersistStorageImpl<CZa>,
public ISpecifyPropertyPagesImpl<CZa>,
public IQuickActivateImpl<CZa>,
public IDataObjectImpl<CZa>,
public IProvideClassInfo2Impl<&CLSID_Za, NULL, &LIBID_TESTV2Lib>,
public CComCoClass<CZa, &CLSID_Za>
{
public:
CZa()
{
}DECLARE_REGISTRY_RESOURCEID(IDR_ZA)DECLARE_PROTECT_FINAL_CONSTRUCT()BEGIN_COM_MAP(CZa)
COM_INTERFACE_ENTRY(IZa)
COM_INTERFACE_ENTRY(IDispatch)
COM_INTERFACE_ENTRY(IViewObjectEx)
COM_INTERFACE_ENTRY(IViewObject2)
COM_INTERFACE_ENTRY(IViewObject)
COM_INTERFACE_ENTRY(IOleInPlaceObjectWindowless)
COM_INTERFACE_ENTRY(IOleInPlaceObject)
COM_INTERFACE_ENTRY2(IOleWindow, IOleInPlaceObjectWindowless)
COM_INTERFACE_ENTRY(IOleInPlaceActiveObject)
COM_INTERFACE_ENTRY(IOleControl)
COM_INTERFACE_ENTRY(IOleObject)
COM_INTERFACE_ENTRY(IPersistStreamInit)
COM_INTERFACE_ENTRY2(IPersist, IPersistStreamInit)
COM_INTERFACE_ENTRY(ISpecifyPropertyPages)
COM_INTERFACE_ENTRY(IQuickActivate)
COM_INTERFACE_ENTRY(IPersistStorage)
COM_INTERFACE_ENTRY(IDataObject)
COM_INTERFACE_ENTRY(IProvideClassInfo)
COM_INTERFACE_ENTRY(IProvideClassInfo2)
END_COM_MAP()BEGIN_PROP_MAP(CZa)
PROP_DATA_ENTRY("_cx", m_sizeExtent.cx, VT_UI4)
PROP_DATA_ENTRY("_cy", m_sizeExtent.cy, VT_UI4)
// Example entries
// PROP_ENTRY("Property Description", dispid, clsid)
// PROP_PAGE(CLSID_StockColorPage)
END_PROP_MAP()#define WM_SELFTMSG WM_USER+100
BEGIN_MSG_MAP(CZa)
CHAIN_MSG_MAP(CComControl<CZa>)
DEFAULT_REFLECTION_HANDLER()
MESSAGE_HANDLER(WM_LBUTTONDBLCLK, OnLButtonDblClk)
MESSAGE_HANDLER(WM_LBUTTONDOWN, OnLButtonDown)
MESSAGE_HANDLER(WM_SELFTMSG, OnSelfDown)
END_MSG_MAP()
// Handler prototypes:
// LRESULT MessageHandler(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled);
// LRESULT CommandHandler(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled);
// LRESULT NotifyHandler(int idCtrl, LPNMHDR pnmh, BOOL& bHandled);// IViewObjectEx
DECLARE_VIEW_STATUS(VIEWSTATUS_SOLIDBKGND | VIEWSTATUS_OPAQUE)// IZa
public: HRESULT OnDraw(ATL_DRAWINFO& di)
{
RECT& rc = *(RECT*)di.prcBounds;
Rectangle(di.hdcDraw, rc.left, rc.top, rc.right, rc.bottom); SetTextAlign(di.hdcDraw, TA_CENTER|TA_BASELINE);
LPCTSTR pszText = _T("ATL 3.0 : Za");
TextOut(di.hdcDraw,
(rc.left + rc.right) / 2,
(rc.top + rc.bottom) / 2,
pszText,
lstrlen(pszText)); return S_OK;
}
LRESULT OnLButtonDblClk(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// TODO : Add Code for message handler. Call DefWindowProc if necessary.
return 0;
}
LRESULT OnLButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// TODO : Add Code for message handler. Call DefWindowProc if necessary.
return 0;
}
LRESULT OnSelfDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
// TODO : Add Code for message handler. Call DefWindowProc if necessary.
return 0;
}
};
{
public:
CString ConvertErrorCode(int ErrorCode);
CESessions *m_parent;
CSessionsWin()
{
} BEGIN_MSG_MAP(CSessionsWin)
// MESSAGE_HANDLER(WM_EtermEVENT, OnEtermEvent)
MESSAGE_HANDLER(WM_OPTION,OnOption)
MESSAGE_HANDLER(WM_DATA,OnData)
MESSAGE_HANDLER(WM_CONNECTSTATUS,OnStatus)
MESSAGE_HANDLER(WM_ERROR,OnERROR)
MESSAGE_HANDLER(WM_ERRORMSG,OnERRORMSG)
MESSAGE_HANDLER(WM_NEWS,OnNEWS)
END_MSG_MAP()
LRESULT OnOption(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnData(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnStatus(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnERROR(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnERRORMSG(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnNEWS(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
};CSessionsWin m_Msg;hwnd=m_Msg.Create(NULL,rect,NULL,0,0,0,NULL);
{
public:
CString ConvertErrorCode(int ErrorCode);
CESessions *m_parent;
CSessionsWin()
{
} BEGIN_MSG_MAP(CSessionsWin)
// MESSAGE_HANDLER(WM_EtermEVENT, OnEtermEvent)
MESSAGE_HANDLER(WM_OPTION,OnOption)
MESSAGE_HANDLER(WM_DATA,OnData)
MESSAGE_HANDLER(WM_CONNECTSTATUS,OnStatus)
MESSAGE_HANDLER(WM_ERROR,OnERROR)
MESSAGE_HANDLER(WM_ERRORMSG,OnERRORMSG)
MESSAGE_HANDLER(WM_NEWS,OnNEWS)
END_MSG_MAP()
LRESULT OnOption(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnData(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnStatus(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnERROR(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnERRORMSG(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
LRESULT OnNEWS(UINT nMsg, WPARAM wParam,
LPARAM lParam, BOOL& bHandled);
};CSessionsWin m_Msg;hwnd=m_Msg.Create(NULL,rect,NULL,0,0,0,NULL);