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# frozen_string_literal: true
require "fiddle"
module TTY
class Reader
module WinAPI
include Fiddle
CRT_HANDLE = Fiddle::Handle.new("msvcrt") rescue Fiddle::Handle.new("crtdll")
# Get a character from the console without echo.
#
# @return [String]
# return the character read
#
# @api public
def getch
@@getch ||= Fiddle::Function.new(CRT_HANDLE["_getch"], [], TYPE_INT)
@@getch.call
end
module_function :getch
# Gets a character from the console with echo.
#
# @return [String]
# return the character read
#
# @api public
def getche
@@getche ||= Fiddle::Function.new(CRT_HANDLE["_getche"], [], TYPE_INT)
@@getche.call
end
module_function :getche
# Check the console for recent keystroke. If the function
# returns a nonzero value, a keystroke is waiting in the buffer.
#
# @return [Integer]
# return a nonzero value if a key has been pressed. Otherwirse,
# it returns 0.
#
# @api public
def kbhit
@@kbhit ||= Fiddle::Function.new(CRT_HANDLE["_kbhit"], [], TYPE_INT)
@@kbhit.call
end
module_function :kbhit
end # WinAPI
end # Reader
end # TTY
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