当我们尝试使用WUA API检索Windows Update信息时,以下是我遵循的过程。但我对IUpdate :: BundledUpdates属性感到困惑。
我在检索捆绑更新时遗漏了什么? (OR)我指定的标准是否包含捆绑更新作为IUpdateCollection的第一个结果集的一部分?
同样在MSDN中,WUA API中的每个接口都缺少示例,有人可以提供任何资源来清楚地解释WUA API中的每个接口的作用吗?
添加了C ++控制台应用程序的完整源代码:
#include <wuapi.h>
#include <iostream>
#include <wuerror.h>
using namespace std;
int main()
{
HRESULT hr;
hr = CoInitialize(NULL);
IUpdateSession* iUpdate;
IUpdateSearcher* searcher;
ISearchResult* results;
BSTR criteria = SysAllocString(L"IsInstalled=1 or IsHidden=1 or IsPresent=1");
hr = CoCreateInstance(CLSID_UpdateSession, NULL, CLSCTX_INPROC_SERVER,
IID_IUpdateSession, (LPVOID*)&iUpdate);
hr = iUpdate->CreateUpdateSearcher(&searcher);
wcout << L"Searching for updates ..."<<endl;
hr = searcher->Search(criteria, &results);
SysFreeString(criteria);
switch(hr)
{
case S_OK:
wcout<<L"List of applicable items on the machine:"<<endl;
break;
case WU_E_LEGACYSERVER:
wcout<<L"No server selection enabled"<<endl;
return 0;
case WU_E_INVALID_CRITERIA:
wcout<<L"Invalid search criteria"<<endl;
return 0;
}
IUpdateCollection * updateList;
IUpdate *updateItem;
LONG updateSize;
BSTR updateName;
results->get_Updates(&updateList);
updateList->get_Count(&updateSize);
if (updateSize == 0)
{
wcout << L"No updates found"<<endl;
}
for (LONG i = 0; i < updateSize; i++)
{
IStringCollection *KBCollection;
LONG KBCount;
updateList->get_Item(i, &updateItem);
updateItem->get_KBArticleIDs(&KBCollection);
KBCollection->get_Count(&KBCount);
for(int k=0;k<KBCount;k++)
{
BSTR KBValue;
KBCollection->get_Item(k,&KBValue);
wcout << L"KB" << KBValue << endl;
}
//Retrieve the bundled updates
IUpdateCollection *updtCollection;
updateItem->get_BundledUpdates(&updtCollection);
LONG updtBundledCount;
updtCollection->get_Count(&updtBundledCount);
for(LONG j=0;j<updtBundledCount;j++)
{
cout<<"Bundled KBs" <<endl;
IUpdate *bundledUpdateItem;
updtCollection->get_Item(j,&bundledUpdateItem);
bundledUpdateItem->get_KBArticleIDs(&KBID);
if(KBID != NULL)
{
LONG KBCount;
BSTR KBIDValue;
KBID->get_Count(&KBCount);
for(LONG j=0;j<KBCount;j++)
{
wcout << "KB" <<(KBIDValue) << endl;
temp.setKBID(KBIDValue);
}
}
}
}
wcout << L"Total KB Count : " << updateSize << endl;
CoUninitialize();
return 0;
}
答案 0 :(得分:2)
我只修复你的代码以检索捆绑更新。
#include "stdafx.h"
#include <wuapi.h>
#include <iostream>
#include <wuerror.h>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
HRESULT hr;
hr = CoInitialize(NULL);
IUpdateSession* iUpdate;
IUpdateSearcher* searcher;
ISearchResult* results;
BSTR criteria = SysAllocString(L"IsInstalled=1 or IsHidden=1 or IsPresent=1");
hr = CoCreateInstance(CLSID_UpdateSession, NULL, CLSCTX_INPROC_SERVER, IID_IUpdateSession, (LPVOID*)&iUpdate);
hr = iUpdate->CreateUpdateSearcher(&searcher);
wcout << L"Searching for updates ..."<<endl;
hr = searcher->Search(criteria, &results);
SysFreeString(criteria);
switch(hr)
{
case S_OK:
wcout<<L"List of applicable items on the machine:"<<endl;
break;
case WU_E_LEGACYSERVER:
wcout<<L"No server selection enabled"<<endl;
return 0;
case WU_E_INVALID_CRITERIA:
wcout<<L"Invalid search criteria"<<endl;
return 0;
}
IUpdateCollection *updateList;
IUpdate *updateItem;
LONG updateSize;
BSTR updateName;
results->get_Updates(&updateList);
updateList->get_Count(&updateSize);
if (updateSize == 0)
{
wcout << L"No updates found"<<endl;
}
for (LONG i = 0; i < updateSize; i++)
{
IStringCollection *KBCollection;
LONG KBCount;
updateList->get_Item(i,&updateItem);
updateItem->get_Title(&updateName);
wcout<<i+1<<" - "<<updateName<<endl;
IUpdateCollection *updtCollection;
LONG updtBundledCount;
//Retrieve the bundled updates
updateItem->get_BundledUpdates(&updtCollection);
hr = updtCollection->get_Count(&updtBundledCount);
if ((updtBundledCount>0) && (hr ==S_OK))
{
wcout << L"Bundled Updates " <<(updtBundledCount) << endl;
for(LONG j=0;j<updtBundledCount;j++)
{
IUpdate *bundledUpdateItem;
BSTR bundledName;
updtCollection->get_Item(j,&bundledUpdateItem);
bundledUpdateItem->get_Title(&bundledName);
wcout<<L" "<<j+1<<" - "<<bundledName<<endl;
}
}
}
::CoUninitialize();
wcin.get();
return 0;
}