Delphi

Hi everyone. I was just wondering (because I want to make wc3 tools), if someone could teach me what Delphi is, does, programming language, and a link to a tutorial, or free download site. (or a site to buy it at) anyways, if you don't know these answers, thanks for reading, if you do know the answers, please respond!

Pipedream or Vexorian could tell you... but this is certainly in the wrong place. I shall move it.

http://www.delphibasics.co.uk/ is a good page for starting.

Delphi is a very bad thing to use overall. And I'm saying this because I've been using it for a long time.
Unlike another language (like C++) it has only one, quite buggy and incomplete at the time of writing, free 3rd party compiler. In addition the real thing is extremely expensive for an individual (Turbo/"Free" versions exist, but they are more like Demos) while you can get a free compiler for most other languages.
In other words, since you don't already know how to work with it, learn some other language (again: C++) instead. No, Delphi is not exclusive to WC3 tool development, nothing like that.

I just use delphi 10 lite, it is supposedly free, and the installer takes few MB and the bless is that no .net is involved.

Although the only reason I use delphi is that if I went for C++ I would need to use some huge library for the GUI so I can have a form designer, or use winapi calls manually to make the GUI which is something I cannot stand to do.

And for simple programs it just isn't worth it to use wxwidgets and increase the size of the program for 0.5 MB to 9 MB ...

I actually think pascal's syntax is one of the worst inventions from mankind.

Indeed, I also think Delphi is great for GUIs for C/C++ backends.

I stand corrected.
Indeed wxWidgets and Ultimate++ tend to produce much bigger executables than Delphi. In addition they are much harder to use overall, however neither is that bad if someone wants to make a larger cross-platform application.
Then again...we are talking about a tool for warcraft so Delphi should suffice.

And VCL uses winapi in such a clean way that I am yet to see a delphi app that doesn't work correctly in Wine...

Possibly borland's C++ builder or something like that has the same results, form designer + VCL, the thing is that I am yet to find a free version, perhaps turbo has the form designer but trying to download turbo is the worst thing that could happen to you.