B4J Question Help how to use dll in a b4j project

[CodeBlacK]

Hello community, from b4x, I am practicing a bit with b4j, and I have been developing a small learning program, I would like to be able to uncertain some functions but with c ++ language it had occurred to me to use dll, but I don't know how to call them from b4j, someone can help me.

I know the Java language, but I am not very familiar with it, I think there is a way to use active code in C ++ with JNI.

I am willing to learn more java in order to link the library, but if there is an easier way it would be much better.


I am not an advanced programmer I am just an apredis and I would be interested to know how I can do this!

 

[MarcoRome]

Look https://www.b4x.com/android/forum/threads/joypad-only-windows-os-at-present.44796/

( JoyPadWrapper.zip )

Added the wrapper so others can see how to access system .dll's

 

[CodeBlacK]

Look https://www.b4x.com/android/forum/threads/joypad-only-windows-os-at-present.44796/

( JoyPadWrapper.zip )

ok ! understand, but I just want to create my own dll with c ++ using mingw, and then call the methods or functions in b4j, is there a way to do this?

Previously I have already done this in the language itself and python, is there a library that allows me to work with dll?

 

[Erel]

Working with C++ dlls is difficult and will require writing a Java library with JNI code.

but I just want to create my own dll with c ++ using mingw

What are you trying to do?

 

[CodeBlacK]

Working with C++ dlls is difficult and will require writing a Java library with JNI code.


What are you trying to do?

Previously I have written some dll in c and then I integrate it to python or to the same c.
I would like to learn to integrate dll into b4j to have the performance and speed of c / c ++, I have previously heard of JNI, but it is somewhat complicated and requires knowing Java.

All this is just for my learning, I know java but I am not very familiar with it.

 

[Erel]

1. You don't need to know Java to program with B4J.
2. B4J performance is excellent. No need to do anything special.