MFC ActiveX开发

http://www.cnblogs.com/gengaixue/archive/2010/08/13/1799112.html

http://ticktick.blog.51cto.com/823160/610784

ActiveX开发的一个完整的示例，还包括了怎样实现控件安全（使IE不弹出安全提示），以及控件打CAB包和数字签名：http://www.codeproject.com/KB/COM/CompleteActiveX.aspx

对于控件安全的实现代码，摘抄如下，原理就是修改控件注册函数（DllRegisterServer），使控件在注册表中注册为安全控件

首先引用三个头文件

#include "comcat.h"
#include "strsafe.h"
#include "objsafe.h"

然后定义要注册为安全的控件对象ID，这个GUID取控件的GUID，可以从xxxCtrl.cpp中的IMPLEMENT_OLECREATE_EX调用参数中找到。
const CATID CLSID_SafeItem =
{0x36299202, 0x9ef, 0x4abf,{ 0xad, 0xb9, 0x47, 0xc5, 0x99, 0xdb, 0xe7, 0x78}};

然后定义三个函数
// Used to register ActiveX control as safe
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;

        CATEGORYINFO catinfo;
        catinfo.catid = catid;
        catinfo.lcid = 0x0409;
        size_t len;
        hr = StringCchLength(catDescription, STRSAFE_MAX_CCH, &len);
        if (FAILED(hr))
                return hr;
        if (len>127)        len = 127;

        hr = StringCchCopy(catinfo.szDescription, len + 1, catDescription);
        catinfo.szDescription[len + 1] = '\0';

        hr = pcr->RegisterCategories(1, &catinfo);
        pcr->Release();

        return hr;
}

// Register your component categories information
HRESULT RegisterCLSIDInCategory(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))
        {
                CATID rgcatid[1] ;
                rgcatid[0] = catid;
                hr = pcr->RegisterClassImplCategories(clsid, 1, rgcatid);
        }

        if (pcr != NULL)
                pcr->Release();

        return hr;
}

// Remove entries from the registry
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))
        {
                CATID rgcatid[1] ;
                rgcatid[0] = catid;
                hr = pcr->UnRegisterClassImplCategories(clsid, 1, rgcatid);
        }

        if (pcr != NULL)
                pcr->Release();

        return hr;
}

最后修改控件注册和反注册函数实现，在注册表中把控件注册为安全的。

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);

        // Mark the control as safe for initializing.
        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;
}
STDAPI DllUnregisterServer(void)
{
        HRESULT hr;

        AFX_MANAGE_STATE(_afxModuleAddrThis);

        // Remove entries from the registry.
        hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForInitializing);
        if (FAILED(hr))
                return hr;

        hr=UnRegisterCLSIDInCategory(CLSID_SafeItem, CATID_SafeForScripting);
        if (FAILED(hr))
                return hr;

        if (!AfxOleUnregisterTypeLib(_tlid, _wVerMajor, _wVerMinor))
                return ResultFromScode(SELFREG_E_TYPELIB);

        if (!COleObjectFactoryEx::UpdateRegistryAll(FALSE))
                return ResultFromScode(SELFREG_E_CLASS);

        return NOERROR;
}