Allow the "Menu" key to be mapped to any button

[Former user]

Original [issue 120](https://code.google.com/p/genplus-gx/issues/detail?id=120) created by clemson.josh on 2010-10-28T00:41:47.000Z:

What is the expected output? What do you see instead? Before we updated to the GUI version, when setting your buttons you could set the menu key to whatever button you wanted. On some 3rd party controllers and adapters the Z button is on the face of the controller, so it can be beneficial to set the Z button as one of the 6 Genesis face buttons. In the GUI version the Z key is always set to the menu, and if you try to set it as an input button, it will just skip your key choice.

I have modified the source code so that the R button is set to the menu button (which works best for my particular set up), but I suggest bringing the ability to set the Menu key to whatever you'd like, for those people who can't change the source.

What version of the emulator are you using (official, SVN revision,...)? Latest SVN (r504)

[Former user]

Comment # 1 originally posted by clemson.josh on 2010-10-28T02:31:43.000Z:

Even better, make it a button combination to call up the menu, like L R Start or L R Z. That way the people who use a Genesis to Wii adapter (like you advertise on the Project Home page) can access the menu without needing to plug in a GC Controller.

[Former user]

Comment # 2 originally posted by ekeeke31 on 2010-10-28T06:23:46.000Z:

I don't want to make combination call, it's not practical to use, I want access to main menu to be fast and not complicate (L+R+START, really ???)

Sorry, I won't change the way it is, if the controller you are using does not have enough buttons for genesis emulation + menu key, there is nothing I can do anyway and I feel that Z button is the best option so far, considering that 99% of user have a normal game cube controller.

[Former user]

Comment # 3 originally posted by clemson.josh on 2010-10-28T09:53:37.000Z:

That's fine eke, luckily it's not that hard to modify in the source for those of us who are so inclined.

However, Tantric uses a button combination to enter the menu on all his emulators and it seems quite well liked. At the very least it seems like having it be customizable would be the best option. Is there a reason why you think it should be set in stone? It used to be moddable.

[Former user]

Comment # 4 originally posted by ekeeke31 on 2010-10-28T10:09:04.000Z:

Because it complicates things to me and because it's fine for me and most other users ;)

[Former user]

Comment # 5 originally posted by ekeeke31 on 2010-10-28T10:18:57.000Z:

Btw, the reason I don't like buttons combination is that there are some games out there that actually use that kind of combinations (for example, to activate a special cheat code or to trigegr a special move in a fighting game, etc).

Using an unmapped controller button seemed more logical to me.