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c获取硬盘信息

发布时间: 2023-03-02 13:37:51

❶ C语言 获取磁盘可用空间

给,在VC6上已经编译运行确认:

/*
* 获取硬盘分区序列号
* [email protected] 2007.5.28
*/
#include <string.h>
#include <stdio.h>
#include <windows.h>
int main() {
_ULARGE_INTEGER lpFreeBytesAvailableToCaller, lpTotalNumberOfBytes, lpTotalNumberOfFreeBytes;
DWORD serialNumber, maxComponentLength, fsFlags;
TCHAR szFileSystem[12];
TCHAR szVolumeName[24];
TCHAR szRoot[4] = "c:\\";//这里写上你需要获取的磁盘的分区

if (!GetVolumeInformation(
szRoot,
szVolumeName,
sizeof(szVolumeName),
&serialNumber,
&maxComponentLength,
&fsFlags,
szFileSystem,
sizeof(szFileSystem))) {
printf("Failed to retrieve drive information\n");
}
GetDiskFreeSpaceEx(szRoot, &lpFreeBytesAvailableToCaller, &lpTotalNumberOfBytes, &lpTotalNumberOfFreeBytes);
//根据MSDN的说明,如果分区大于2G一定要用GetDiskFreeSpaceEx

printf("卷标: %s$ %s\n分区类型: %s\n卷序列号: %04X-%04X\n",
szRoot,
szVolumeName,
szFileSystem,
serialNumber >> 16,
serialNumber & 0xFFFF
);
printf("分区总空间大小: %d MB\n",lpTotalNumberOfBytes.QuadPart / (1024 *1024));
printf("分区剩余空间大小: %d MB\n",lpTotalNumberOfFreeBytes.QuadPart / (1024 *1024));
printf("调用者可用的空间大小: %d MB\n",lpFreeBytesAvailableToCaller.QuadPart / (1024 *1024));
return(0);
}

❷ C\C++如何获取硬盘的序列号和使用时间

可以试试使用WMI(在msdn上有详细的信息):
硬盘序列号: 用Win32_PhysicalMedia class.
CPU编号: 用Win32_Processor class.
BIOS编号: 用Win32_BIOS class.

下面例子取得硬盘的序列号,其他的用法也类似(msdn上的例子,把Win32_OperatingSystem改成了Win32_PhysicalMedia):

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

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

int main(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_PhysicalMedia"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);

if (FAILED(hres))
{
cout << "Query for physical media 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"SerialNumber", 0, &vtProp, 0, 0);

wcout << "Serial Number : " << vtProp.bstrVal << endl;
VariantClear(&vtProp);
}

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

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

return 0; // Program successfully completed.
}