#197 support for GetKeyboardState

[Laurent Demailly]

I would love support (even just basic without any helper, just an array or list result for) GetKeyboardState

https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-getkeyboardstate

(would avoid having to do GetAsyncKeyState dozens of times)
Thanks!

[Ashok P. Nadkarni]

You can now use the cffi package for this. See https://cffi.magicsplat.com. Sample is below:

% package require cffi
1.0a7
% cffi::dyncall::Library create user32 user32.dll
::user32
% user32 function
wrong # args: should be "user32 function NAME RETURNTYPE PARAMDEFS"
% user32 function GetKeyboardState int {state {uchar[256] out}}
% GetKeyboardState
Syntax: GetKeyboardState state
% GetKeyboardState state
1
% set state
0 0 0 0 0 0 0 0 0 0 0 0 0 129 0 0 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 1 1 1 0 0 1 1 1 1 0 0 0 0 0 0 0 0 1 0 1 1 1 1 1 1 0 1 0 1 1 1 1 1 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 0 1 0 0 0 0

Henceforth, I only plan on adding commands to twapi that cannot be done with the CFFI package which is a generic extension to call functions from DLLs. Any feedback appreciated (in the CFFI repository)

/Ashok