KOL x64

[Thaddy]

That's not a GUI application, but that size is correct for a terminal/console application.

[fasdfasdfasdfasdfasdf]

I think i will try to reimplement it in C++.

[Thaddy]

I think i will try to reimplement it in C++.

Then the size would likely increase!!!! >Be warned! (We've actually done that around 2001-2002 for C++builder)
And the code will likely become less safe, too.
Further size gains are basically only possible with plain C and you will loose OOP.

For the concept of KOL, Object Pascal is an ideal language because the compiler has so many things built-in compared to C++.

[fasdfasdfasdfasdfasdf]

How much? And which C++ are we talking?

[Thaddy]

C++ builder. Around 30-50% depending on 32/64. Visual C++ was never tested, mainly because C++ builder has some features to co-operate with Delphi code.
Note it is very hard to go smaller, because e.g. the 32 bit version is over 50% already written in BASM. And KOL uses any and all available tricks to achieve its small sizes while still being OOP.
I would advice against it, unless you want to see that here the Pascal language is superior to C++: safer, smaller, more readable.

[fasdfasdfasdfasdfasdf]

One more thing can we use callbacks in KOL for events? Or do we have to use MakeMethod??

[Thaddy]

Makemethod is only necessary if an event implementor is declared outside of an object.
The event mechanism from KOL is otherwise based on the same mechanism as the VCL: procedure of object. (TOnEvent is basically the same as TNotifyEvent).
And yes, you can implement callbacks too: hey it is Pascal