how use a DLL function?

Development Programming & Scripting C++
1

hello people!!!, i need know, how is the correct way to use a DLL inside UE4 and the using inside a bluprintcallable function.
any idea are welcome, thanks for the help!!!

2

It’s C++, you can do anything that you can do in C++, including use of any liberies normally from there header files instead of using dll call hacks like in UnrealScript

What DLL you want to use?

3

hello my DLL is something special to comunicate hardware via serial port, but actually i made a little example with simple maths funtions,
inside unreal i try this after regular constructor:
float Ahardware::getCilinderArea(float radius, float height)
{

      HINSTANCE hardwareDLL = LoadLibrary(_T("C:\\Users\\yoshito3d\\Documents\\Visual Studio 2013\\Projects\\hardware\\Debug\	est.dll"));

FARPROC getFunction = GetProcAddress(HMODULE(hardwareDLL), "getCilinderArea");

typedef float(__stdcall * pICFUNC)(float, float);

float output = getCilinderArea(radius, height);

FreeLibrary(hardwareDLL);

return output;

}

4

This may also be of use.