Passing C++ class to DLL for callbacks from D (Steam)

[rikki cattermole]

On 10/06/2018 11:28 PM, cc wrote:
> Woops, that GetIntPtr came from the .cs header in the same folder as the 
> C++ headers distributed with the SDK, that'll teach me to ctrl+f "class 
> ISteamClient" in all open files and copy/paste before reading.

Stay with the c/c++ headers for c/c++ code. We don't generally don't go 
testing the long way ;)