Class: Pport::WinPport

Inherits:
Object
  • Object
show all
Defined in:
lib/win_pport.rb

Overview

Class for interacting with a parallel port in microsoft windows using the inpout32 DLL.

Instance Method Summary collapse

Constructor Details

#initialize(address) ⇒ WinPport

Creates a reader and a write function from the inpout32 library.



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# File 'lib/win_pport.rb', line 28

def initialize(address)

    @address = address
    @reader = Win32API.new('inpout32', 'Inp32', ['i'], 'i')
    @writer = Win32API.new('inpout32', 'Out32', ['i', 'i'], 'v')
end

Instance Method Details

#read ⇒ Object

Reads the value of the port at address.



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# File 'lib/win_pport.rb', line 36

def read()
    return @reader.call(@address)
end

#write(val) ⇒ Object

Writes the value val to the port at address

val: The value to be written, on a standard parallel port it should be an integer from 0 to 255



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# File 'lib/win_pport.rb', line 44

def write(val)
    @writer.call(@address, val)
end