Windows Update Agent pure win32 APIs

Windows Update Agent pure win32 APIs

本文关键字:win32 APIs pure Agent Update Windows      更新时间:2023-10-16

我正在开发一个示例代码,以获取有关Windows更新监视的信息。我碰到Windows Update Agent API。链接:http://msdn.microsoft.com/en-us/library/windows/desktop/aa387099(v = vs.85).aspx

,但我找不到Win32的任何API。我只找到C#/。网络接口。是否有相应的Win32 API?

特别是我想找出Windows Update/Patch的"发布日期"。期待任何建议和指导。

  • srivathsa

WUA API包含一组COM接口,可以从C 应用中使用,因此请尝试这些IUpdateSearcherIUpdateSessionIUpdate

检查此示例C 应用程序,该应用程序检索更新和发布日期。

#include "stdafx.h"
#include <wuapi.h>
#include <iostream>
#include <ATLComTime.h>
#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;
    DATE retdate;
    results->get_Updates(&updateList);
    updateList->get_Count(&updateSize);
    if (updateSize == 0)
    {
        wcout << L"No updates found"<<endl;
    }
    for (LONG i = 0; i < updateSize; i++)
    {
        updateList->get_Item(i,&updateItem);
        updateItem->get_Title(&updateName);
        updateItem->get_LastDeploymentChangeTime(&retdate);
        COleDateTime odt;
        odt.m_dt=retdate;
        wcout<<i+1<<" - "<<updateName<<"  Release Date "<< (LPCTSTR)odt.Format(_T("%A, %B %d, %Y"))<<endl;
    }
    ::CoUninitialize();
    wcin.get();
    return 0;
}