VC编写浏览器中不弹出警告的ActiveX控件

我们在编写ActiveX控件时，如果用在浏览器中，经常都会弹出现在运行的脚本不安全的提示， 如果给客户使用，将会带来极大不便。按照MSDN的介绍通常有两种一种是实现IObjectSafe接口，一种是通过修改注册表的方法。一般如果用ATL开发ActiveX控件，就用实现ObjectSafe接口的方法。如果用MFC开发，我觉得还是用修改注册表的方法比较方便。下面我们将第二种方法：

要包括两个文件

#include "comcat.h"#include "Objsafe.h"

// 本控件的CLSID,注册表用

const GUID CDECL CLSID_SafeItem ={ 0x7AE7497B, 0xCAD8, 0x4E66, { 0xA5,0x8B,0xDD,0xE9,0xBC,0xAF,0x6B,0x61 } };

// 创建组件种类

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    // Make sure the provided description is not too long.    // Only copy the first 127 characters if it is.    int len = wcslen(catDescription);    if (len>127)        len = 127;    wcsncpy(catinfo.szDescription, catDescription, len);    // Make sure the description is null terminated.    catinfo.szDescription[len] = ''/0'';    hr = pcr->RegisterCategories(1, &catinfo);        pcr->Release();    return hr;}

// 注册组件种类

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;}

// 卸载组件种类

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 - Adds entries to the system registry

STDAPI DllRegisterServer(void){HRESULT hr;AFX_MANAGE_STATE(_afxModuleAddrThis);if (!AfxOleRegisterTypeLib(AfxGetInstanceHandle(), _tlid))return ResultFromScode(SELFREG_E_TYPELIB);if (!COleObjectFactoryEx::UpdateRegistryAll(TRUE))return ResultFromScode(SELFREG_E_CLASS);    // 标记控件初始化安全.    // 创建初始化安全组件种类    hr = CreateComponentCategory(CATID_SafeForInitializing, L"Controls safely initializable from persistent data!");    if (FAILED(hr))        return hr;    // 注册初始化安全    hr = RegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForInitializing);    if (FAILED(hr))        return hr;    // 标记控件脚本安全    // 创建脚本安全组件种类     hr = CreateComponentCategory(CATID_SafeForScripting, L"Controls safely scriptable!");    if (FAILED(hr))        return hr;    // 注册脚本安全组件种类    hr = RegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForScripting);    if (FAILED(hr))        return hr;return NOERROR;}

// DllUnregisterServer - Removes entries from the system registry

STDAPI DllUnregisterServer(void){HRESULT hr;AFX_MANAGE_STATE(_afxModuleAddrThis);if (!AfxOleUnregisterTypeLib(_tlid, _wVerMajor, _wVerMinor))return ResultFromScode(SELFREG_E_TYPELIB);if (!COleObjectFactoryEx::UpdateRegistryAll(FALSE))return ResultFromScode(SELFREG_E_CLASS);    // 删除控件初始化安全入口.    hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForInitializing);    if (FAILED(hr))        return hr;    // 删除控件脚本安全入口    hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForScripting);    if (FAILED(hr))        return hr;//////////////////////////return NOERROR;}