Is the Model Workspace dirty?

Is there a programatic way to determine if the model workspace is dirty, which is indicated by an asterisk next to "Model Workspace" in the model explorer?

Answer 1

[Vieniava]

Check this code out:

    Z=get_param(gcs,'ModelWorkspace');
    Z.isDirty

[Walter Roberson]

Does requesting that parameter make the workspace dirty? ;-)

[Paul]

Excellent! Is this documented anywhere? Are there any other undocumented methods of the ModelWorkspace class? If this isn't documented, should I really count on it?

[Vieniava]

Your start point could from here http://www.mathworks.com/help/toolbox/simulink/slref/f23-7515.html

Answer 2

[MG]

To determine if the model is dirty:

This means a model has changes that are unsaved.

x = get_param( gcs, 'ModelWorkspace' )
x.isDirty

or

bdIsDirty( gcs )

or

isDirtyOff = strcmp( get_param( gcs, 'Dirty' ), 'off' )

or

isDirtyOn = strcmp( get_param( gcs, 'Dirty' ), 'on' )

To set the dirty bit:

This will trick Simulink to think there are changes that are unsaved.

examples:

• if you want to save a changed view when there has been no material changes to the model; or
• you opened or closed some tabs and want to save that change in state when there has been no other material changes to the model.

x = get_param( gcs, 'ModelWorkspace' )
x.isDirty = 1;

or

set_param( gcs, 'Dirty', 'on' )

To save the model:

save_system( gcs )

To close the model:

close_system( gcs )

To save and close the model:

close_system( gcs, 1 )