我們在編寫ActiveX控件時,如果用在浏覽器中,經常都會彈出現在運行的腳 本不安全的提示, 如果給客戶使用,將會帶來極大不便。按照MSDN的介紹通常 有兩種一種是實現IObjectSafe接口,一種是通過修改注冊表的方法。一般如果 用ATL開發ActiveX控件,就用實現ObjectSafe接口的方法。如果用MFC開發,我 覺得還是用修改注冊表的方法比較方便。下面我們將第二種方法:
要包 括兩個文件
#include "comcat.h"
#include "Objsafe.h"
// 本控件的CLSID,注冊表用
const GUID CDECL CLSID_SafeItem =
{ 0x7AE7497B, 0xCAD8, 0x4E66, { 0xA5,0x8B,0xDD,0xE9,0xBC,0xAF,0x6B,0x61 } };
// 創建組件種類
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;
}
// 注冊組件種類
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;
}
// 卸載組件種類
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);
// 標記控件初始化安全.
// 創建初始化安全組件種類
hr = CreateComponentCategory (CATID_SafeForInitializing, L"Controls safely initializable from persistent data!");
if (FAILED(hr))
return hr;
// 注冊初始化安全
hr = RegisterCLSIDInCategory (CLSID_SafeItem, CATID_SafeForInitializing);
if (FAILED(hr))
return hr;
// 標記控件腳本安全
// 創建 腳本安全組件種類
hr = CreateComponentCategory (CATID_SafeForScripting, L"Controls safely scriptable!");
if (FAILED(hr))
return hr;
// 注冊腳本安全 組件種類
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);
// 刪除控件初始化安全入 口.
hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForInitializing);
if (FAILED(hr))
return hr;
// 刪除控件腳本安全入口
hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForScripting);
if (FAILED(hr))
return hr;
//////////////////////////
return NOERROR;
}
(全文完)
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