如何获取硬件信息，象windows的设备管理器一样

[zhugay]

特别是获取光驱的型号等，硬件信息到底保存在哪里，如何得到

[dyw]

http://www.codeproject.com/vbscript/VvvHardwareInfo.asp

[yxz_lp]

用WMI，以下是个例子：

#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>

# pragma comment(lib, "wbemuuid.lib")

int _tmain(int argc, char **argv)
{
	HRESULT hres;

	// Step 1: --------------------------------------------------
	// Initialize COM. ------------------------------------------

	hres =  CoInitializeEx(0, COINIT_MULTITHREADED); 
	if (FAILED(hres))
	{
		cout << "Failed to initialize COM library. Error code = 0x" 
			<< hex << hres << endl;
		return 1;                  // Program has failed.
	}

	// Step 2: --------------------------------------------------
	// Set general COM security levels --------------------------
	// Note: If you are using Windows 2000, you need to specify -
	// the default authentication credentials for a user by using
	// a SOLE_AUTHENTICATION_LIST structure in the pAuthList ----
	// parameter of CoInitializeSecurity ------------------------

	hres =  CoInitializeSecurity(
		NULL, 
		-1,                          // COM authentication
		NULL,                        // Authentication services
		NULL,                        // Reserved
		RPC_C_AUTHN_LEVEL_DEFAULT,   // Default authentication 
		RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation  
		NULL,                        // Authentication info
		EOAC_NONE,                   // Additional capabilities 
		NULL                         // Reserved
		);


	if (FAILED(hres))
	{
		cout << "Failed to initialize security. Error code = 0x" 
			<< hex << hres << endl;
		CoUninitialize();
		return 1;                    // Program has failed.
	}

	// Step 3: ---------------------------------------------------
	// Obtain the initial locator to WMI -------------------------

	IWbemLocator *pLoc = NULL;

	hres = CoCreateInstance(
		CLSID_WbemLocator,             
		0, 
		CLSCTX_INPROC_SERVER, 
		IID_IWbemLocator, (LPVOID *) &pLoc);

	if (FAILED(hres))
	{
		cout << "Failed to create IWbemLocator object."
			<< " Err code = 0x"
			<< hex << hres << endl;
		CoUninitialize();
		return 1;                 // Program has failed.
	}

	// Step 4: -----------------------------------------------------
	// Connect to WMI through the IWbemLocator::ConnectServer method

	IWbemServices *pSvc = NULL;

	// Connect to the root\cimv2 namespace with
	// the current user and obtain pointer pSvc
	// to make IWbemServices calls.
	hres = pLoc->ConnectServer(
		_bstr_t(L"ROOT\\CIMV2"), // Object path of WMI namespace
		NULL,                    // User name. NULL = current user
		NULL,                    // User password. NULL = current
		0,                       // Locale. NULL indicates current
		NULL,                    // Security flags.
		0,                       // Authority (e.g. Kerberos)
		0,                       // Context object 
		&pSvc                    // pointer to IWbemServices proxy
		);

	if (FAILED(hres))
	{
		cout << "Could not connect. Error code = 0x" 
			<< hex << hres << endl;
		pLoc->Release();     
		CoUninitialize();
		return 1;                // Program has failed.
	}

	cout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;


	// Step 5: --------------------------------------------------
	// Set security levels on the proxy -------------------------

	hres = CoSetProxyBlanket(
		pSvc,                        // Indicates the proxy to set
		RPC_C_AUTHN_WINNT,           // RPC_C_AUTHN_xxx
		RPC_C_AUTHZ_NONE,            // RPC_C_AUTHZ_xxx
		NULL,                        // Server principal name 
		RPC_C_AUTHN_LEVEL_CALL,      // RPC_C_AUTHN_LEVEL_xxx 
		RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx
		NULL,                        // client identity
		EOAC_NONE                    // proxy capabilities 
		);

	if (FAILED(hres))
	{
		cout << "Could not set proxy blanket. Error code = 0x" 
			<< hex << hres << endl;
		pSvc->Release();
		pLoc->Release();     
		CoUninitialize();
		return 1;               // Program has failed.
	}

	// Step 6: --------------------------------------------------
	// Use the IWbemServices pointer to make requests of WMI ----

	// For example, get the name of the operating system
	IEnumWbemClassObject* pEnumerator = NULL;
	hres = pSvc->ExecQuery(
		bstr_t("WQL"), 
		bstr_t("SELECT * FROM Win32_Processor"),//获取cpu信息，可以换成其他的信息
		WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
		NULL,
		&pEnumerator);

	if (FAILED(hres))
	{
		cout << "Query for operating system name failed."
			<< " Error code = 0x" 
			<< hex << hres << endl;
		pSvc->Release();
		pLoc->Release();
		CoUninitialize();
		return 1;               // Program has failed.
	}

	// Step 7: -------------------------------------------------
	// Get the data from the query in step 6 -------------------

	IWbemClassObject *pclsObj;
	ULONG uReturn = 0;

	while (pEnumerator)
	{
		HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, 
			&pclsObj, &uReturn);

		if(0 == uReturn)
		{
			break;
		}

		VARIANT vtProp;

		// Get the value of the Name property
		hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);//获取CPU名字
		wcout << " CPU Name : " << vtProp.bstrVal << endl;
		VariantClear(&vtProp);
	}

	// Cleanup
	// ========

	pSvc->Release();
	pLoc->Release();
	pEnumerator->Release();
	pclsObj->Release();
	CoUninitialize();

	return 0;   // Program successfully completed.

}

[coffeaddice]

可以读注册表

下面是一个 读注册表里 DSN名字的例子 你找到硬件在注册表的位子 直接读注册表好了
((CListBox*)GetDlgItem(IDC_DSN_LIST))->ResetContent();
HKEY hKey;
RegOpenKeyEx(HKEY_CURRENT_USER,"Software\\ODBC\\ODBC.INI\\ODBC Data Sources",0,KEY_READ,&hKey);

DWORD dwKeyCount;
DWORD dwMaxKeyNameLength;

RegQueryInfoKey(hKey,NULL,NULL,NULL,NULL,NULL,NULL,&dwKeyCount,&dwMaxKeyNameLength,NULL,NULL,NULL);

char* szKeyName = new char[dwMaxKeyNameLength+1];
DWORD dwKeyName;
for (long index=0;index<(long)dwKeyCount;index++)
{
RegEnumValue(hKey,index,szKeyName,&dwKeyName,NULL,NULL,NULL,NULL);
CString DSNName;
DSNName.Format("%s",szKeyName);
((CListBox*)GetDlgItem(IDC_DSN_LIST))->AddString(DSNName);
}
delete szKeyName;
RegCloseKey(hKey);