Can't catch events using SetWinEventHook. Will get event after using accevent32.exe

Does anyone get the following problem? I write a dll to load into another process to get EVENT_OBJECT_VALUECHANGE event for a window in that process. The code looks like as below.

void CALLBACK WinEventProc(
            HWINEVENTHOOK hWinEventHook,
            DWORD event,
            HWND hwnd,
            LONG idObject,
            LONG idChild,
            DWORD dwEventThread,
            DWORD dwmsEventTime)
{
    if(event == EVENT_OBJECT_NAMECHANGE && hwnd)
    {
      .....
    }
}

SetWinEventHook(1u, 0x7FFFFFFFu,  
            ModuleFromAddress(PIURouter),
            WinEventProc,
            dwProcess,  //the window in that process
            dwThread, //the window in that thread
            WINEVENT_INCONTEXT|WINEVENT_SKIPOWNPROCESS);

I am sure that the DLL is loaded into that process and WinEventProc is called, just can not catch the event I want. I'm sure that event is happened in every half second.

But right after I use accevent32.exe and include the events only for that window. I can see the EVENT_OBJECT_NAMECHANGE. Close accevent32.exe and run my app again. Now EVENT_OBJECT_NAMECHANGE is caught by WinEventProc.

I decompile the event32.dll from accevent32.exe. Don't see any special functions called. Also the windows properties, styles and procedure are not changed after running accevent32.exe.

Any advice?