func init
	// adds using namespace
	sys.add_use('System.Drawing.Imaging')

	// initialize instance
	sys.add_var(this.name, 'PropertyItem')

	// makes implementation methods for properties
	sys._prop_init('.Id', 1, 0, 1)
	sys._prop_init('.Len', 1, 0, 1)
	sys._prop_init('.Type', 1, 0, 0)
	sys._prop_init('.Value', 1, 0, 0)

	// makes implementation of methods as properties
	sys._mtd_as_prop_init('PropertyItem')
end

func doPropertyItem(data)
	blk.println(this.codename, ' = ', d("Item"), ';')
end

func doId(data)
	blk.println(this.codename, '.Id = ', d("id"), ';')
end

func doLen(data)
	blk.println(this.codename, '.Len = ', d("len"), ';')
end

func doType(data)
	blk.println(this.codename, '.Type = ', d("type"), ';')
end

func doValue(data)
	blk.println(this.codename, '.Value = ', d("value"), ';')
end