scripting:api:base-document:can-undo

CanUndo

Property of IBaseDocument

Checks if undo action possible

Read-Only Property of type VARIANT_BOOL

var bCan = BaseDocument.CanUndo;
bCan = BaseDocument.CanUndo
VARIANT_BOOL bCan;
HRESULT hr = BaseDocument.get_CanUndo(&bCan);