如何获取硬件信息，象windows的设备管理器一样

Question

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

Answer 1

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

Answer 2

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.}

Answer 3

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);