互斥，游戏多开源码，针对目前90%的游戏

HANDLE GetProcessKernelObject(DWORD ProcessId) 
{ 
  
HMODULE hNtDll = NULL; 
ZWQUERYSYSTEMINFORMATION pfnZwQuerySystemInformation = NULL; 
NTQUERYOBJECT pfnNtQueryObject = NULL; 
PSYSTEM_HANDLE_INFORMATION pSysHandleInfo = NULL; 
POBJECT_ALL_INFORMATION pAllInfo =NULL; 
POBJECT_NAME_INFORMATION pNameInfo = NULL; 
  
  
ULONG nNumberHandle =0; 
NTSTATUS ntStatus = 0; 
ULONG ulSize,ulCount; 
char cBuffer[0x80000],cInfoBuffer[0x10000]; 
  
hNtDll = GetModuleHandle(TEXT("ntdll.dll")); 
pfnZwQuerySystemInformation = (ZWQUERYSYSTEMINFORMATION)GetProcAddress(hNtDll,"ZwQuerySystemInformation"); 
pfnNtQueryObject = (NTQUERYOBJECT)GetProcAddress(hNtDll,"NtQueryObject"); 
  
ntStatus = pfnZwQuerySystemInformation(SystemHandleInformation,cBuffer,0x80000,&ulSize); 
  
if(NT_SUCCESS(ntStatus)) 
{ 
DWORD n = ulSize/sizeof(SYSTEM_HANDLE_INFORMATION); 
nNumberHandle = *(PULONG)cBuffer; 
pSysHandleInfo = (PSYSTEM_HANDLE_INFORMATION)(cBuffer +4); 
ulCount = 0; 
  
for(ULONG i=0;i!=nNumberHandle;++i) 
{ 
  
if(pSysHandleInfo.ProcessId != ProcessId) 
continue; 
  
  
ntStatus = pfnNtQueryObject((HANDLE)pSysHandleInfo.Handle,ObjectAllInformation,cInfoBuffer,0x10000,&ulSize); 
ntStatus = pfnNtQueryObject((HANDLE)pSysHandleInfo.Handle,ObjectNameInformation,cInfoBuffer,0x10000,&ulSize); 
if(NT_SUCCESS(ntStatus)) 
{ 
pAllInfo = (POBJECT_ALL_INFORMATION)cInfoBuffer; 
pNameInfo = (POBJECT_NAME_INFORMATION)cInfoBuffer; 
if(_tcsstr(pNameInfo->NameBuffer,TEXT("QQGame_Mutex")) !=NULL) 
{ 
return (HWND)pSysHandleInfo.Handle; 
} 
} 
} 
} 
return NULL; 
} 
  
  
hMuTex = GetProcessKernelObject(GetCurrentProcessId()); 
CloseHandle(hMuTex);