def freeze(parm):
    assert isinstance(parm, poser.ParmType)
    v = parm.Value()
    parm.SetUpdateCallback(lambda a, b: v)

And the obvious counterpart:

def unfreeze(parm):
    assert isinstance(parm, poser.ParmType)
    parm.ClearUpdateCallback()

Unlike Poser's built-in method (Lock Object), this also allows morph parameters to be protected against accidental modification.

When using this method, you must be very careful not to delete any object without first removing the locks. Otherwise there is a danger of crashing.

The best way is to use it within an AddOn, where you are notified when objects are deleted (or added).

Try this one:

def doFreeze():
    actor = poser.Scene().CurrentFigure().Actor("Hip")
    freeze(actor.ParameterByCode(poser.kParmCodeXTRAN))
    freeze(actor.ParameterByCode(poser.kParmCodeYTRAN))

Load a figure and run the script. Then grab the figures hip with the mouse and try to move it. It will move – but only in the (not blocked) Z-direction.

Don*t forget to unfreeze!

Nice.

Thanks!

Seeams that my warning in the first message isn't needed anymore. I deleted props and figures with an active callback and nothing bad happend.