Worker threads in vb apartment activex dlls
Posted on 2000-02-21
I want to create a worker thread that processes incoming messages to update a cache. However, I know that cross thread calls to activeX objects need to be marshalled between apartments - say if globals are used in the dll. However, I'm not creating another apartment, do I still need to marshal calls to objects on the apartment thread.
Basically I have a global collection object that is accessed by the apartment, and I want to create a worker thread that updates this collection as messages come in. If I use synchronisation objects on each update of the collection, I guess this will cause the apartment thread to hang while I block access to the collection - will vb be able to cope with this?