lib/rubyserial/windows.rb in rubyserial-0.0.1 vs lib/rubyserial/windows.rb in rubyserial-0.1.0

@@ -48,9 +48,24 @@
       raise RubySerial::Exception, RubySerial::Win32::ERROR_CODES[FFI.errno]
     end
     buff.get_bytes(0, count.read_string.unpack('H4').join().to_i(16))
   end
 
+  def getbyte
+    buff = FFI::MemoryPointer.new :char, 1
+    count = FFI::MemoryPointer.new :uint32, 1
+    err = RubySerial::Win32.ReadFile(@fd, buff, size, count, nil)
+    if err == 0
+      raise RubySerial::Exception, RubySerial::Win32::ERROR_CODES[FFI.errno]
+    end
+
+    if count.read_string.unpack('H4').join().to_i(16) == 0
+      nil
+    else
+      buff.read_string.unpack('C').first
+    end
+  end
+
   def write(data)
     buff = FFI::MemoryPointer.from_string(data.to_s)
     count = FFI::MemoryPointer.new :uint32, 1
     err = RubySerial::Win32.WriteFile(@fd, buff, buff.size, count, nil)
     if err == 0