>>>Hi everybody,
>>>
>>>I have a C++ Service application that calls VFP dll. In this dll we try to call Windows API Messagebox (the call to this messagebox is in the custom class).
>>>
>>>The call to the Messagebox is in the do while loop. The messagebox never gets displayed.
>>>
>>>Do you know if it's possible to call messagebox from the multi-threaded DLL that is called by the service?
>>>
>>>Thanks in advance.
>>
>>http://msdn.microsoft.com/en-us/library/8bx07sy3%28VS.80%29.aspx
>
>Can you return a value back to the caller and display a messagebox there dependent on the return value instead?

I removed the messagebox. It was not that important. It is still not working, but I hope to make it to work tonight.