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在代码中实现IObjectSafety接口，以去除IE对代码未标识安全的提示

在“<工程名>Ctrl.h”中

引入头文件

#include <ObjSafe.h>

在“DECLARE_DYNCREATE(C<工程名>Ctrl)”语句下面添加

DECLARE_INTERFACE_MAP()
BEGIN_INTERFACE_PART(ObjSafe, IObjectSafety) 
STDMETHOD_(HRESULT, GetInterfaceSafetyOptions) ( 
     /* [in] */ REFIID riid, 
     /* [out] */ DWORD __RPC_FAR *pdwSupportedOptions, 
     /* [out] */ DWORD __RPC_FAR *pdwEnabledOptions 
); 
         
STDMETHOD_(HRESULT, SetInterfaceSafetyOptions) ( 
     /* [in] */ REFIID riid, 
     /* [in] */ DWORD dwOptionSetMask, 
     /* [in] */ DWORD dwEnabledOptions 
); 
END_INTERFACE_PART(ObjSafe);

在“<工程名>Ctrl.cpp”中的UpdateRegistry方法后加入

///////////////////////////////////////////////////////////////////////////// 
// Interface map for IObjectSafety
BEGIN_INTERFACE_MAP( C<工程名>Ctrl, COleControl ) 
INTERFACE_PART(C<工程名>Ctrl, IID_IObjectSafety, ObjSafe) 
END_INTERFACE_MAP()
///////////////////////////////////////////////////////////////////////////// 
// IObjectSafety member functions
// Delegate AddRef, Release, QueryInterface
ULONG FAR EXPORT C<工程名>Ctrl::XObjSafe::AddRef() 
{ 
    METHOD_PROLOGUE(C<工程名>Ctrl, ObjSafe) 
    return pThis->ExternalAddRef(); 
}
ULONG FAR EXPORT C<工程名>Ctrl::XObjSafe::Release() 
{ 
    METHOD_PROLOGUE(C<工程名>Ctrl, ObjSafe) 
    return pThis->ExternalRelease(); 
}
HRESULT FAR EXPORT C<工程名>Ctrl::XObjSafe::QueryInterface( 
    REFIID iid, void FAR* FAR* ppvObj) 
{ 
    METHOD_PROLOGUE(C<工程名>Ctrl, ObjSafe) 
    return (HRESULT)pThis->ExternalQueryInterface(&iid, ppvObj); 
}
const DWORD dwSupportedBits = 
INTERFACESAFE_FOR_UNTRUSTED_CALLER | 
INTERFACESAFE_FOR_UNTRUSTED_DATA; 
const DWORD dwNotSupportedBits = ~ dwSupportedBits; 


///////////////////////////////////////////////////////////////////////////// 
// CStopLiteCtrl::XObjSafe::GetInterfaceSafetyOptions 
// Allows container to query what interfaces are safe for what. We're 
// optimizing significantly by ignoring which interface the caller is 
// asking for. 
HRESULT STDMETHODCALLTYPE 
C<工程名>Ctrl::XObjSafe::GetInterfaceSafetyOptions( 
/* [in] */ REFIID riid, 
        /* [out] */ DWORD __RPC_FAR *pdwSupportedOptions, 
        /* [out] */ DWORD __RPC_FAR *pdwEnabledOptions) 
{ 
METHOD_PROLOGUE(C<工程名>Ctrl, ObjSafe)
HRESULT retval = ResultFromScode(S_OK);
// does interface exist? 
IUnknown FAR* punkInterface; 
retval = pThis->ExternalQueryInterface(&riid, 
     (void * *)&punkInterface); 
if (retval != E_NOINTERFACE) { // interface exists 
punkInterface->Release(); // release it--just checking! 
} 


// we support both kinds of safety and have always both set, 
// regardless of interface 
*pdwSupportedOptions = *pdwEnabledOptions = dwSupportedBits;
return retval; // E_NOINTERFACE if QI failed 
}
///////////////////////////////////////////////////////////////////////////// 
// CStopLiteCtrl::XObjSafe::SetInterfaceSafetyOptions 
// Since we're always safe, this is a no-brainer--but we do check to make 
// sure the interface requested exists and that the options we're asked to 
// set exist and are set on (we don't support unsafe mode). 
HRESULT STDMETHODCALLTYPE 
C<工程名>Ctrl::XObjSafe::SetInterfaceSafetyOptions( 
        /* [in] */ REFIID riid, 
        /* [in] */ DWORD dwOptionSetMask, 
        /* [in] */ DWORD dwEnabledOptions) 
{ 
    METHOD_PROLOGUE(C<工程名>Ctrl, ObjSafe) 


// does interface exist? 
IUnknown FAR* punkInterface; 
pThis->ExternalQueryInterface(&riid, (void * *)&punkInterface); 
if (punkInterface) { // interface exists 
punkInterface->Release(); // release it--just checking! 
} 
else { // interface doesn't exist 
return ResultFromScode(E_NOINTERFACE); 
}
// can't set bits we don't support 
if (dwOptionSetMask & dwNotSupportedBits) { 
return ResultFromScode(E_FAIL); 
} 


// can't set bits we do support to zero 
dwEnabledOptions &= dwSupportedBits; 
// (we already know there are no extra bits in mask ) 
if ((dwOptionSetMask & dwEnabledOptions) != 
   dwOptionSetMask) { 
return ResultFromScode(E_FAIL); 
}        


// don't need to change anything since we're always safe 
return ResultFromScode(S_OK); 
}

说明

• 本solution中建了一个ActiveX控件，与3个测试容器分别为C#、C++、HTML，见截图：
  
• 
• 
• vs2012中方法与属性在MyMFCActiveXControlLib/_DMyMFCActiveXControl右击添加，事件则在CMyMFCActiveXControlCtrl中添加
• vs2012中在属性页中添加新控件并为其关联属性时无“Optional property name”，必须在DoDataExchange中用DDP_Text手动关联控件变量

// CMyMFCActiveXControlPropPage::DoDataExchange - 在页和属性间移动数据

void CMyMFCActiveXControlPropPage::DoDataExchange(CDataExchange* pDX)
{
	DDP_Text(pDX, IDC_EDIT_INTERVAL, m_updateInterval,L"Interval");
	DDX_Text(pDX, IDC_EDIT_INTERVAL, m_updateInterval);
	DDP_PostProcessing(pDX);
}

• 在ActiveX控件的工程属性页设置使用IE进行调试后，直接按F5进行调试的话由于IE新建进程打开此HTML页而使得无法进入断点，应该为VS附加至目标iexplorer进程
  
• c#容器工程测试运行时抛“未处理COMException”，生成的目标平台设为“x86”即可
  
• 在本地上打开html页进行测试时，ActiveX会自动注册