CODEWITHSUNDEEP
c++eventsnotificationswmiqt5
Hossein
Hossein

Reputation: 25924

Why do i get failed to initialize COM library?

I am trying to test an msdn sample on WMI notification in c++ which is located here: Example: Receiving Event Notifications Through WMI in a Qt5.2 project.Everything compiles just fine and runs well, But when I try to run the sample code, I get stuck at the very beginning!
I get the error:

failed to initialize Com library

I\ve read somewhere that it seems Qt itself initializes the com objects, So there is no need to re initialize it.
In that case if i comment the initialization part i get CoInitializeSecurity failure error.!
What am i missing here?

Upvotes: 1

Views: 2930

Answers (1)

Hossein
Hossein

Reputation: 25924

From MSDN:

The multi-threaded apartment is intended for use by non-GUI threads. Threads in multi-threaded apartments should not perform UI actions. This is because UI threads require a message pump, and COM does not pump messages for threads in a multi-threaded apartment.

Instead of a GUI application in qt, i tried a console based one and it worked.

Upvotes: 1

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