An unknown bug.

[Those-Flowers]

I intercepted a part of your code about dllfunction call. I build it with vs2013, and it's OK to use it most of the time. But sometimes VB6 program calls dllfunctioncall and passes in lpProcAddressA parameter is NULL. What's the problem?
The problem is when VB6 calls functions in OEMStartup.dll. Youcan find it in the SySwow64 folder.

[cocus]

Do you have an example VB6 project where you call some of those functions?
Or is it VB6 that calls those by itself?
It might be an issue because the arguments and structures received by DllFunctionCall were obtained by looking at the disassembly of the caller exe file, and maybe the tests I put there didn't cover the entire functionality. Would be nice to add it based on your input.
Thanks

[cocus]

Hi @Those-Flowers , can you provide any more feedback on this? I'm curious about it. Thanks.