Accessing the DataSocket only using nids.dll

[PEESPE]

Hello Candidus,

thank you very much. This really is it.
Honestly speaking, I do not (yet) see the difference to my previous attempts and why I always gotback a variant VT_I4 instead of an VT_ARRAY|VT_R8 (or VT_R4), but since I have a working version I can analyze this , modify it and learn.

Thanks again

 Peter

[PEESPE]

To all who might be interested:

If I use CoInitialize(NULL) it fails, if I use CoInitializeEx( NULL, COINIT_MULTITHREADED ) it works.

Again thanks to Chris and candidus for their help.

 Peter

[candidus]

That seems to be the key.

CoInitialize(NULL) is the same as CoInitializeEx(NULL, COINIT_APARTMENTTHREADED) .

Our DataSocket client can't live in a single-threaded apartment.

That's especially important if you want to use MFC: MFC only supports single-threaded apartments

so you must do your DataSocket stuff from another thread.

[PEESPE]

The nasty thing was, that it worked for individual data, but it failed for arrays.