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编写在浏览器中不弹出警告的ActiveX控件2010-11-29王正平我们在编写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,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 HKCRComponent 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] = "" "";
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;
}