最近需要做下用戶信息統計，發現WMI真是個好東西，同時覺得COM這東西，還真不能少>_<！！
下面是源碼：
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/********************************************************************
created: 2014/02/18
author: baesky
purpose: Gater user infomation
*********************************************************************/
#include <comdef.h>
#include <Wbemidl.h>
# pragma comment(lib, "wbemuuid.lib")
struct UserInfo
{
/** your spec*/
};
/** video card and OS */
bool GetUserInfo(UserInfo& Info)
{
HRESULT hres;
hres = CoInitialize( NULL );
if (FAILED(hres))
{
return false;
}
hres = CoInitializeSecurity(
NULL,
-1,
NULL,
NULL,
RPC_C_AUTHN_LEVEL_DEFAULT,
RPC_C_IMP_LEVEL_IMPERSONATE,
NULL,
EOAC_NONE,
NULL
);
if (FAILED(hres))
{
CoUninitialize();
return false;
}
IWbemLocator *pLoc = NULL;
hres = CoCreateInstance(
CLSID_WbemLocator,
0,
CLSCTX_INPROC_SERVER,
IID_IWbemLocator, (LPVOID *) &pLoc);
if (FAILED(hres))
{
CoUninitialize();
return false;
}
IWbemServices *pSvc = NULL;
hres = pLoc->ConnectServer(
_bstr_t(L"ROOT\\CIMV2"),
NULL,
NULL,
0,
NULL,
0,
0,
&pSvc
);
if (FAILED(hres))
{
pLoc->Release();
CoUninitialize();
return false;
}
hres = CoSetProxyBlanket(
pSvc,
RPC_C_AUTHN_WINNT,
RPC_C_AUTHZ_NONE,
NULL,
RPC_C_AUTHN_LEVEL_CALL,
RPC_C_IMP_LEVEL_IMPERSONATE,
NULL,
EOAC_NONE
);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return false;
}
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_OperatingSystem"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return false;
}
IWbemClassObject *pclsObj;
ULONG uReturn = 0;
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if(0 == uReturn)
{
break;
}
VARIANT vtProp;
hr = pclsObj->Get(L"Caption", 0, &vtProp, 0, 0); //os
//vtProp.bstrVal is what you need.
//VariantClear(&vtProp);
//hr = pclsObj->Get(L"CSDVersion", 0, &vtProp, 0, 0); // example "sp3"
//VariantClear(&vtProp);
//hr = pclsObj->Get(L"OSArchitecture", 0, &vtProp, 0, 0); // example x64
//VariantClear(&vtProp);
pclsObj->Release();
}
pEnumerator->Release();
pEnumerator=NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_VideoController"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return false;
}
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if(0 == uReturn)
{
break;
}
VARIANT vtProp;
hr = pclsObj->Get(L"Caption", 0, &vtProp, 0, 0); //video desc
/**
.,,,,,,,,,,,,,,,,,,,,,,your logic
*/
VariantClear(&vtProp);
pclsObj->Release();
}
pEnumerator->Release();
pEnumerator=NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_Processor"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);
if (FAILED(hres))
{
pSvc->Release();
pLoc->Release();
CoUninitialize();
return false;
}
while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);
if(0 == uReturn)
{
break;
}
VARIANT vtProp;
hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0); //video desc
/**
.,,,,,,,,,,,,,,,,,,,,,,your logic
*/
VariantClear(&vtProp);
pclsObj->Release();
}
pSvc->Release();
pLoc->Release();
pEnumerator->Release();
CoUninitialize();
return true;
}
