QApplication-无法在Qt中使用IWbemLocator

我想在

Qt

中使用windows API和COM库编写

WMI

应用程序

我使用

来访问windows

API

，我以前在Visual Studio中尝试过这个方法

但是当我包含

Wbemidl.h

来声明

IWbemLocator

变量时，编译器会给出以下

错误

：

这是我的

代码

的一部分：

HRESULT hResult = S_OK;                 // Result of initializing com library
BOOL    bIsComLibUninit = FALSE;        // A flag that determine if com library is loaded

// Initialize COM library
hResult = CoInitializeEx(0, COINIT_MULTITHREADED);
// If a previous call of CoInitializeEx occured in this thread
if(hResult == RPC_E_CHANGED_MODE)
{
    OleUninitialize();
    bIsComLibUninit = TRUE;
}
else if(hResult == S_OK)
{
    bIsComLibUninit = TRUE;
}

// If COM library uninitialized
if(bIsComLibUninit == TRUE)
{
    // Initialize COM library
    hResult = CoInitializeEx(0, COINIT_MULTITHREADED);
    if(hResult == S_OK)
    {
        // Initialize security
        hResult = CoInitializeSecurity(NULL, -1, NULL, NULL,
                                       RPC_C_AUTHN_LEVEL_DEFAULT,
                                       RPC_C_IMP_LEVEL_IMPERSONATE,
                                       NULL, EOAC_NONE, NULL);
        if(hResult == S_OK)
        {
            IWbemLocator *pLoc = NULL;
            CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER,
                             IID_IWbemLocator, (LPVOID *) &pLoc);
            // Do stuffs
        }
    }

    // Uninitialize COM library
    CoUninitialize();
}

---

错误消息告诉编译器找不到头文件

尝试在您的位置找到“Wbemidl.h”（例如，我的本地文件中的路径：

C:\ProgramFiles（x86）\Windows Kits\10\Include\10.0.17134.0\um

），然后将路径添加到编译器中。也不要忘记.lib引用

如果找不到此头文件，请尝试从下载sdk，选择一个适合您的头文件：

HRESULT hResult = S_OK;                 // Result of initializing com library
BOOL    bIsComLibUninit = FALSE;        // A flag that determine if com library is loaded

// Initialize COM library
hResult = CoInitializeEx(0, COINIT_MULTITHREADED);
// If a previous call of CoInitializeEx occured in this thread
if(hResult == RPC_E_CHANGED_MODE)
{
    OleUninitialize();
    bIsComLibUninit = TRUE;
}
else if(hResult == S_OK)
{
    bIsComLibUninit = TRUE;
}

// If COM library uninitialized
if(bIsComLibUninit == TRUE)
{
    // Initialize COM library
    hResult = CoInitializeEx(0, COINIT_MULTITHREADED);
    if(hResult == S_OK)
    {
        // Initialize security
        hResult = CoInitializeSecurity(NULL, -1, NULL, NULL,
                                       RPC_C_AUTHN_LEVEL_DEFAULT,
                                       RPC_C_IMP_LEVEL_IMPERSONATE,
                                       NULL, EOAC_NONE, NULL);
        if(hResult == S_OK)
        {
            IWbemLocator *pLoc = NULL;
            CoCreateInstance(CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER,
                             IID_IWbemLocator, (LPVOID *) &pLoc);
            // Do stuffs
        }
    }

    // Uninitialize COM library
    CoUninitialize();
}