emeykey/IWbemClassObject
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This commit is contained in:
emeykey 2023-12-14 01:46:11 +01:00
parent e8ccbd1009
commit 4baad8c5a2
2 changed files with 66 additions and 2 deletions
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8
IWbemClassObject/main.cpp
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@ -1,10 +1,14 @@
#include <iostream> #include <iostream>
#include <Windows.h> #include <Windows.h>
#include <Wbemidl.h> #include <Wbemidl.h>
#pragma comment(lib, "wbemuuid.lib")
#include "query.cpp"
using namespace std;
int main(int argc, char** argv) { int main(int argc, char** argv) {
std::cout << "test" << std::endl; cout << GetVideoCardDriverVersion() << endl;
return 0; return 0;
} }

60
IWbemClassObject/query.cpp Normal file
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std::string GetVideoCardDriverVersion() {
std::string retvalue = "";
HRESULT hr;
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if (FAILED(hr)) {
return retvalue;
}
IWbemLocator* pIWbemLocator = NULL;
hr = CoCreateInstance(__uuidof(WbemLocator), NULL, CLSCTX_INPROC_SERVER,
__uuidof(IWbemLocator), (LPVOID*)&pIWbemLocator);
if (FAILED(hr)) {
CoUninitialize();
return retvalue;
}
BSTR bstrServer = SysAllocString(L"\\\\.\\root\\cimv2");
IWbemServices* pIWbemServices;
hr = pIWbemLocator->ConnectServer(bstrServer, NULL, NULL, 0L, 0L, NULL, NULL, &pIWbemServices);
if (FAILED(hr)) {
pIWbemLocator->Release();
SysFreeString(bstrServer);
CoUninitialize();
return retvalue;
}
hr = CoSetProxyBlanket(pIWbemServices, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE,
NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_DEFAULT);
BSTR bstrWQL = SysAllocString(L"WQL");
BSTR bstrPath = SysAllocString(L"select * from Win32_VideoController");
IEnumWbemClassObject* pEnum;
hr = pIWbemServices->ExecQuery(bstrWQL, bstrPath, WBEM_FLAG_FORWARD_ONLY, NULL, &pEnum);
ULONG uReturned;
VARIANT var;
IWbemClassObject* pObj = NULL;
if (!FAILED(hr)) {
hr = pEnum->Next(WBEM_INFINITE, 1, &pObj, &uReturned);
}
if (!FAILED(hr) && uReturned) {
hr = pObj->Get(L"DriverVersion", 0, &var, NULL, NULL);
if (SUCCEEDED(hr)) {
char str[MAX_PATH];
WideCharToMultiByte(CP_ACP, 0, var.bstrVal, -1, str, sizeof(str), NULL, NULL);
retvalue = str;
}
}
pEnum->Release();
SysFreeString(bstrPath);
SysFreeString(bstrWQL);
pIWbemServices->Release();
pIWbemLocator->Release();
SysFreeString(bstrServer);
CoUninitialize();
return retvalue;
}