Keeping the GUI and commands up-to-date

If a command edits an object, you should request that a query be registered on that object by specifying True for the registerQuery argument in the GUI command constructor. Registering a query will cause the keywords associated with the AFXGuiCommand to be updated with the kernel values when the mode is started and any time the kernel values change.

For example, 

 cmd = AFXGuiCommand(
     mode, 'PointSection', 'mdb.models[%s]', True)

In addition, modes recognize session.viewports[%s] as a special repository. The mode registers a query on the session automatically so that the command will be kept up-to-date if the user switches the current viewport. The following examples illustrate the special syntax: 

cmd = AFXGuiCommand(
    mode,'setValues','session.viewports[%s]', True)

cmd = AFXGuiCommand(
    mode,'bringToFront','session.viewports[%s]', True)