This option sets up a one-to-one correspondence between the ESL unit and the number of dialog units on the screen, so that the number of units in the ESL coordinate system is the same as the number of dialog units on the screen. For this screen size definition, both ESL objects and dialog objects will be defined in dialog units; thus, a Dialog Box and an ESL object defined as the same size in your ESL application will display as the same size. Once again, the number of units in the ESL coordinate system will vary between resolutions, and there will be more units in the ESL coordinate system on a higher resolution monitor than on a lower resolution monitor.