PPD driver: custom options

1.

I want to create an edit box with ppd file.

I found the sample code:

*OpenUI WatermarkText/Watermark Text: PickOne

*OrderDependency: 10 AnySetup *WatermarkText

*DefaultWatermarkText: None

*WatermarkText None: ""

*WatermarkText Draft: "<</cupsString1(Draft)>>setpagedevice"

*CloseUI: *WatermarkText

*% Custom PostScript watermark option

*CustomWatermarkText True: "<</cupsString1 3 -1 roll>>setpagedevice"

*ParamCustomWatermarkText Text: 1 string 0 32

But it is a combo box with edit function.

Can I create a pure edit box?


2.

If not, Can I set the default value to empty?


3.

If I set the *ParamCustomWatermarkText Text: 1 string 0 32 to *ParamCustomWatermarkText Text: 1 password 0 32

It will be a pure edit box which can be enter password only.


I can set the UIConstraints between combobox.

But I can't set the UIConstraints between edit box.

The requirement is: if user enter password in edit box1, then he can't enter password in edit box2.

How to implement the requirement?


Thanks very much!