func init
	// checks installation Adobe Photoshop and adds references
	include("AdobePhotoshop")

	// initialize instance
	sys.add_object(this.codename, 'ps.BitmapConversionOptions')

	// initialize properties
	if(this.props("Method").value == 'psHalftoneScreen')
		blk_init.println(this.codename, '.Angle = ',  sys.get_typed_field('0D', 'Angle', 7), ';')
		blk_init.println(this.codename, '.Frequency = ',  sys.get_typed_field('1D', 'Frequency', 7), ';')
		blk_init.println(this.codename, '.Shape = ', sys.get_typed_field('ps.PsBitmapHalfToneType.psHalftoneEllipse', 'Shape', 14, 'ps.PsBitmapHalfToneType'), ';')
	end
	sys.set_typed_field(14, 'Method', '', 'ps.PsBitmapConversionType')
	if(this.props("Method").value == 'psCustomPattern')
		sys.set_typed_field(2, 'PatternName')
	end
	sys.set_typed_field(7, 'Resolution')

	// make methods for properties
	sys._prop_init('Angle', 0, 1, 7)
	sys._prop_init('Frequency', 0, 1, 7)
	sys._prop_init('Method', 0, 1, 0)
	sys._prop_init('PatternName', 0, 1, 2)
	sys._prop_init('Resolution', 0, 1, 7)
	sys._prop_init('Shape', 0, 1, 0)
end

func ConversionOptions
	return(this.codename)
end