Unreal Engine 4.15 Preview

[SRombauts]

@Syed;656658

In 4.15.p2, I can no longer use win32 functions in C++ project such as:-

'GetLocalTime': identifier not found
'SYSTEMTIME': undeclared identifier
InterlockedIncrement': is not a member of '`global namespace'
'InterlockedIncrement': identifier not found

Yes, you are missing the Windows stuff that was included by Engine headers in all your own code (without you even knowing it).

So you can go this way…

@ryan20fun;656673

Try adding this to your header:

// Exclude rarely-used stuff from Windows headers
#define WIN32_LEAN_AND_MEAN
#define NOMINMAX

// Windows Header Files:
#include <windows.h>

But if you want to make portable code (to go Mobile, Console, or OS X/Linux) you should never do this !

=> Instead, use the “GenericPlaform” API of UnrealEngine, for instance the FPlatformAtomics::InterlockedExchange().

When I am faced with such low level question, I look into the Engine code itself (and particularly the Plugins, since they are somewhat external as a Game code)

Hope this helps!