// IsUserAdminTest.cpp : Defines the entry point for the console application.//#include <Windows.h>#include <tchar.h>#include <iostream>BOOL IsUserAdmin();int _tmain(int argc, _TCHAR* argv[]){	printf_s("%d\n",IsUserAdmin());	return 0;}BOOL IsUserAdmin(){	BOOL b = FALSE;	SID_IDENTIFIER_AUTHORITY NtAuthority = SECURITY_NT_AUTHORITY;	PSID AdministratorsGroup = NULL; 	b = AllocateAndInitializeSid(		&NtAuthority,		2,		SECURITY_BUILTIN_DOMAIN_RID,		DOMAIN_ALIAS_RID_ADMINS,		0, 0, 0, 0, 0, 0,		&AdministratorsGroup); 	if(b) 	{		HANDLE hThreadUserToken = NULL;		if (!::OpenThreadToken(::GetCurrentThread(), 			TOKEN_READ,//must have TOKEN_QUERY			false,			&hThreadUserToken))		{			if (!CheckTokenMembership( hThreadUserToken, AdministratorsGroup, &b)) 			{				b = FALSE;			}			if (AdministratorsGroup)			{				FreeSid(AdministratorsGroup); 			}		}		if (hThreadUserToken)		{			CloseHandle(hThreadUserToken);		}	}	return(b);}