출처 : http://blog.naver.com/elastica/50031820994
안전하지 못하는 경고또는 에러 메시지 없이 익스플로러에서 ActiveX Control 을 로딩하기 위해서는
Visaul Studio 가 생성해 주는 기본 코드에 안전하게 초기화 하는 코드를 추가할 필요가 있습니다.
기본적인 내용은 MSDN 의 "Safe Initialization and Scripting for ActiveX Controls" 에 나와 있지만
인터넷에 올라와 있는 여러가지 글들을 종합하여 수정할 점을 정리(영문과 짬뽕되어 있음)해 봅니다.
Visual Studio2005 를 통해 ActiveX Control 을 하나 생성해 보았습니다.
이름은 TestControl 로 정했습니다.
위저드를 통해 생성된 코드를 보면 아래와 같습니다.
수정되기 전의 코드
// TestControl.cpp : Implementation of CTestControlApp and DLL registration.
#include "stdafx.h"
#include "TestControl.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CTestControlApp theApp;
const GUID CDECL BASED_CODE _tlid =
{ 0xE3F25CDE, 0xC9DB, 0x435A, { 0xA2, 0x69, 0xEF, 0xBF, 0xC6, 0xE4, 0x95, 0x79 } };
const WORD _wVerMajor = 1;
const WORD _wVerMinor = 0;
// CTestControlApp::InitInstance - DLL initialization
BOOL CTestControlApp::InitInstance()
{
BOOL bInit = COleControlModule::InitInstance();
if (bInit)
{
// TODO: Add your own module initialization code here.
}
return bInit;
}
// CTestControlApp::ExitInstance - DLL termination
int CTestControlApp::ExitInstance()
{
// TODO: Add your own module termination code here.
return COleControlModule::ExitInstance();
}
// DllRegisterServer - Adds entries to the system registry
STDAPI DllRegisterServer(void)
{
AFX_MANAGE_STATE(_afxModuleAddrThis);
if (!AfxOleRegisterTypeLib(AfxGetInstanceHandle(), _tlid))
return ResultFromScode(SELFREG_E_TYPELIB);
if (!COleObjectFactoryEx::UpdateRegistryAll(TRUE))
return ResultFromScode(SELFREG_E_CLASS);
return NOERROR;
}
// DllUnregisterServer - Removes entries from the system registry
STDAPI DllUnregisterServer(void)
{
AFX_MANAGE_STATE(_afxModuleAddrThis);
if (!AfxOleUnregisterTypeLib(_tlid, _wVerMajor, _wVerMinor))
return ResultFromScode(SELFREG_E_TYPELIB);
if (!COleObjectFactoryEx::UpdateRegistryAll(FALSE))
return ResultFromScode(SELFREG_E_CLASS);
return NOERROR;
}
아래는 수정된 코드입니다.
수정된 코드는 빨간색으로 표시를 했습니다.
// TestControl.cpp : Implementation of CTestControlApp and DLL registration.
#include "stdafx.h"
#include "TestControl.h"
#include "comcat.h"
#include "strsafe.h"
#include "objsafe.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
CTestControlApp theApp;
const GUID CDECL BASED_CODE _tlid =
{ 0xE3F25CDE, 0xC9DB, 0x435A, { 0xA2, 0x69, 0xEF, 0xBF, 0xC6, 0xE4, 0x95, 0x79 } };
const WORD _wVerMajor = 1;
const WORD _wVerMinor = 0;
// CTestControlApp ::InitInstance - DLL initialization
BOOL CTestControlApp ::InitInstance()
{
BOOL bInit = COleControlModule::InitInstance();
if (bInit)
{
// TODO: Add your own module initialization code here.
}
return bInit;
}
// CTestControlApp ::ExitInstance - DLL termination
int CTestControlApp ::ExitInstance()
{
// TODO: Add your own module termination code here.
return COleControlModule::ExitInstance();
}
//기본적으로 생성된 Ctrl(TestControlCtrl.cpp) 의 IMPLEMENT_OLECREATE_EX 을 참조하셔서 추가하시면 됩니다.
const CATID CLSID_SafeItem =
{ 0x8c937105, 0x69dd, 0x47c5,{ 0x96, 0xe1, 0x7, 0x3b, 0xd3, 0x72, 0x44, 0xb9}};
//CreateComponentCategory : ActiveX Contrl 을 안전하게 등록하는데 사용하는 함수입니다.
HRESULT CreateComponentCategory(CATID catid, WCHAR *catDescription)
{
ICatRegister *pcr = NULL ;
HRESULT hr = S_OK ;
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
if (FAILED(hr))
return hr;
// Make sure the HKCR\Component Categories\{..catid...}
// key is registered.
CATEGORYINFO catinfo;
catinfo.catid = catid;
catinfo.lcid = 0x0409 ; // english
size_t len;
// Make sure the provided description is not too long.
// Only copy the first 127 characters if it is.
// The second parameter of StringCchLength is the maximum
// number of characters that may be read into catDescription.
// There must be room for a NULL-terminator. The third parameter
// contains the number of characters excluding the NULL-terminator.
hr = StringCchLength(catDescription, STRSAFE_MAX_CCH, &len);
if (SUCCEEDED(hr))
{
if (len>127)
{
len = 127;
}
}
else
{
// TODO: Write an error handler;
}
// The second parameter of StringCchCopy is 128 because you need
// room for a NULL-terminator.
hr = StringCchCopy(catinfo.szDescription, len + 1, catDescription);
// Make sure the description is null terminated.
catinfo.szDescription[len + 1] = '\0';
hr = pcr->RegisterCategories(1, &catinfo);
pcr->Release();
return hr;
}
//RegisterCLSIDInCategory : 설치되는 컴포넌트 카테고리 정보를 등록하는 함수입니다.
HRESULT RegisterCLSIDInCategory(REFCLSID clsid, CATID catid)
{
// Register your component categories information.
ICatRegister *pcr = NULL ;
HRESULT hr = S_OK ;
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
if (SUCCEEDED(hr))
{
// Register this category as being "implemented" by the class.
CATID rgcatid[1] ;
rgcatid[0] = catid;
hr = pcr->RegisterClassImplCategories(clsid, 1, rgcatid);
}
if (pcr != NULL)
pcr->Release();
return hr;
}
// UnRegisterCLSIDInCategory : 레지스트리로부터 엔트리를 제거하는 함수입니다.
HRESULT UnRegisterCLSIDInCategory(REFCLSID clsid, CATID catid)
{
ICatRegister *pcr = NULL ;
HRESULT hr = S_OK ;
hr = CoCreateInstance(CLSID_StdComponentCategoriesMgr,
NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr);
if (SUCCEEDED(hr))
{
// Unregister this category as being "implemented" by the class.
CATID rgcatid[1] ;
rgcatid[0] = catid;
hr = pcr->UnRegisterClassImplCategories(clsid, 1, rgcatid);
}
if (pcr != NULL)
pcr->Release();
return hr;
}
// DllRegisterServer - 엔트리를 시스템 레지스트리에 등록하는 기능이 추가되었습니다.
STDAPI DllRegisterServer(void)
{
HRESULT hr; // HResult used by Safety Functions
AFX_MANAGE_STATE(_afxModuleAddrThis);
if (!AfxOleRegisterTypeLib(AfxGetInstanceHandle(), _tlid))
return ResultFromScode(SELFREG_E_TYPELIB);
if (!COleObjectFactoryEx::UpdateRegistryAll(TRUE))
return ResultFromScode(SELFREG_E_CLASS);
hr = CreateComponentCategory(CATID_SafeForInitializing,
L"Controls safely initializable from persistent data!");
if (FAILED(hr))
return hr;
hr = RegisterCLSIDInCategory(CLSID_SafeItem,
CATID_SafeForInitializing);
if (FAILED(hr))
return hr;
// Mark the control as safe for scripting.
hr = CreateComponentCategory(CATID_SafeForScripting,
L"Controls safely scriptable!");
if (FAILED(hr))
return hr;
hr = RegisterCLSIDInCategory(CLSID_SafeItem,
CATID_SafeForScripting);
if (FAILED(hr))
return hr;
return NOERROR;
}
// 엔트리정보를 시스템 레지스트리로부터 삭제하는 기능이 추가되었습니다.
STDAPI DllUnregisterServer(void)
{
HRESULT hr; // HResult used by Safety Functions
AFX_MANAGE_STATE(_afxModuleAddrThis);
if (!AfxOleUnregisterTypeLib(_tlid, _wVerMajor, _wVerMinor))
return ResultFromScode(SELFREG_E_TYPELIB);
if (!COleObjectFactoryEx::UpdateRegistryAll(FALSE))
return ResultFromScode(SELFREG_E_CLASS);
hr=UnRegisterCLSIDInCategory(CLSID_SafeItem,
CATID_SafeForInitializing);
if (FAILED(hr))
return hr;
hr=UnRegisterCLSIDInCategory(CLSID_SafeItem,
CATID_SafeForScripting);
if (FAILED(hr))
return hr;
return NOERROR;
}
[출처] 일곱번째-안전한 ActiveX Control 만들기|작성자 모노
