windows c

code.c

##开机自启动脚本
#include <windows.h>
#include <stdio.h>

int main()
{
	HKEY hRoot = HKEY_LOCAL_MACHINE;
	char *szSubKey = "Software\\Microsoft\\Windows\\CurrentVersion\\Run";
	char *szModule = "D:\\software\\eclipse\\eclipse.exe";

	HKEY hKey;

	DWORD dwDisposition = REG_OPENED_EXISTING_KEY;
	LONG lRet = RegCreateKeyEx(hRoot, szSubKey, 0, NULL, REG_OPTION_NON_VOLATILE, 
		KEY_ALL_ACCESS, NULL, &hKey, &dwDisposition);
	if(lRet != ERROR_SUCCESS)
	{
		printf("failed to find !\n");
		return -1;
	}

	lRet = RegSetValueEx(hKey, "eclipse", 0, REG_SZ, (BYTE *)szModule, strlen(szModule));

	RegCloseKey(hKey);

	if(lRet != ERROR_SUCCESS)
	{
		printf("failed to reg !\n");
		return -1;
	}

	return 0;
}


//Windows C 获取mac地址

#include <stdlib.h>
#include <Winsock2.h>
#include <Iptypes.h>
#include <iphlpapi.h>
#include <stdio.h>

static void PrintMACaddress(unsigned char MACData[])
{
    printf("MAC Address: %02X-%02X-%02X-%02X-%02X-%02X\n",
    MACData[0], MACData[1],MACData[2],MACData[3],MACData[4],MACData[5]);
}

static void GetMacAddress(void)
{

    IP_ADAPTER_INFO AdapterInfo[16];
    DWORD dwBuflen = sizeof(AdapterInfo);

    DWORD dwStatus = GetAdaptersInfo(AdapterInfo, &dwBuflen);

    PIP_ADAPTER_INFO pAdapterInfo = AdapterInfo;

    do{
        PrintMACaddress(pAdapterInfo->Address);
        pAdapterInfo = pAdapterInfo->Next;
    }while(pAdapterInfo);

}

int main()
{
    GetMacAddress();
    system("pause");
    return 0;
}
gcc mac.c -o mac -l iphlpapi