# -*- ruby -*- require 'dl' class Win32API DLL = {} def initialize(dllname, func, import, export = "0") prototype = (export + import.to_s).tr("VPpNnLlIi", "0SSI").sub(/^(.)0*$/, '\1') handle = DLL[dllname] ||= DL::Handle.new(dllname) @sym = handle.sym(func, prototype) end def call(*args) import = @sym.proto.split("", 2)[1] args.each_with_index do |x, i| args[i] = nil if x == 0 and import[i] == ?S args[i], = [x].pack("I").unpack("i") if import[i] == ?I end ret, = @sym.call(*args) return ret || 0 end alias Call call end