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Hello experts 
 
I have a problem when synchronizing the same instances of a process. My application will call from other jobs simultaneously , it instantiate the multiple instances of the application. 
 
&nbsp;I want to create a event in the application and signal it &nbsp;after completion of one instance I will un-signal it, &nbsp;other instances should instances should wait until first completes. 
 
created sample code. but it is in infinite loop. 
 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HANDLE &nbsp;hEvent1 = CreateEvent ( NULL , true , false , L&quot;MyEvent&quot; ); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;hEvent = OpenEvent ( EVENT_ALL_ACCESS , false, L&quot;MyEvent&quot; ); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if(GetLastError () == ERROR_ALREADY_EXISTS) 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{ 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while (WaitForSingleObject(hEvent,INFINITE)==WAIT_OBJECT_0) 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{ 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sleep(0); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SetEvent (hEvent); 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;} 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;else 
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;SetEvent (hEvent ); 
 
 
 
 
//in the ending of application. 
ResetEvent (hEvent); 
 
 
Please advise 
Thanks in advance
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Hello experts

I have a problem when synchronizing the same instances of a process. My application will call from other jobs simultaneously , it instantiate the multiple instances of the application.

 I want to create a event in the application and signal it  after completion of one instance I will un-signal it,  other instances should instances should wait until first completes.

created sample code. but it is in infinite loop.

		HANDLE  hEvent1 = CreateEvent ( NULL , true , false , L"MyEvent" );
		hEvent = OpenEvent ( EVENT_ALL_ACCESS , false, L"MyEvent" );
		if(GetLastError () == ERROR_ALREADY_EXISTS)
		{
			while (WaitForSingleObject(hEvent,INFINITE)==WAIT_OBJECT_0)
			{
				Sleep(0);
			}
			SetEvent (hEvent);
		}
		else
			SetEvent (hEvent );




//in the ending of application.
ResetEvent (hEvent);


Please advise
Thanks in advance

Synchronization between instances of same processes using CreateEvent

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