Ultra Light Client Guide and Reference
The UlcUI command starts the user interface engine of ULC with
the JIT compiler enabled by default. To run with the JIT compiler
disabled, use the UlcUINoJit command.
UlcUI
[-m]
[-url URL | -server port_number]
[-locale ISOlanguage_ISOCountry]
[-look Look&Feel_class]
The UlcUI program checks if the UI Engine is running and starts it if
necessary. The engine can be started with different widget sets or with
ULC Monitor, as appropriate.
The UlcUI program expects the directory and file structure in which it is
embedded. Always start the program from its location in that tree
(UIEngine\bin directory).
Options
- -url URL
- Starts the UI Engine in production mode; that is, the UI Engine tries
to connect to an application server with the given URL. The URL should
conform to the following syntax:
ulc://hostName[:portNumber]/[appName]
- -m
- Starts ULC Monitor, a simple tool for monitoring communication between the
UI Engine and connected applications.

- -doublebuffering
- Toggles double buffering. By default, it is on.
- -locale
- Overrides the default locate of the UI Engine. The format is
Language_Country, where language and country are the two-character
ISO abbreviations, for example, -locale en_US for English language
and the U.S.
- -look Look&Feel_class
- Specifies the class name for the desired look and feel. Possible
values are:
- com.sun.java.swing.plaf.windows.WindowsLookAndFeel
(default)
- com.sun.java.swing.plaf.jlf.JLFLookAndFeel
- com.sun.java.swing.plaf.motif.MotifLookAndFeel
- com.sun.java.swing.plaf.metal.MetalLookAndFeel
- -server port_number
- Starts the UI Engine in test mode.
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