fix: scancodes for native ironrdp-client incorrect on MacOS

[zmrush]

Fixes #180

[zmrush]

@elmarco @sandeepbansal @CBenoit can u review this pr for bug fix?

[CBenoit]

Thank you for attempting to fix this!
Unfortunately, using virtual keycodes is not the right approach here.
In this case, the QWERTY layout is assumed, but everything breaks as soon as you use something else.
There are also other shortcomings related to special characters.

Actually, I was working on a fix on this branch: https://github.com/Devolutions/IronRDP/tree/scancode-mapping

In essence, what we need is a big match for mapping Apple scancodes to Windows scancodes.

I needed to look into the extended key flag: bc130ad#diff-8e4e009d60d38d2b1313aabac26f36ddad39d34aecfa700239ea7b88be9cb906R3

This should be relatively straightforward by looking at the input module from FreeRDP WinPR: https://github.com/FreeRDP/FreeRDP/tree/master/winpr/libwinpr/input

Would you be interested into pursuing this?

[thenextman]

Also to note that even for Windows, you wouldn't use a static map of VKCode to scancode. MapVirtualKey and MapVirtualKeyEx achieve this according to the current keyboard layout.

[zmrush]

@CBenoit i am sorry for reply u so late. I am very interesting for this. And I am working on solving this according to your advice, based on freerdp and I almost finished it. In addition, i am also doing work for file uploading/downloading, and i test a lot, and i think i almost finish it. I expect i will give the pr, next week maybe. thank u so much.