v4.2
Undoes the last undoable command in the command stack. This is the scripting equivalent of selecting Undo
from the main Edit menu or pressing Ctrl+Z in the user interface.
Warning: Don't call this command to undo changes to scene data from a custom command. Custom commands are
only allowed to use the Undo and Redo commands for user data. For more information, see
Undoing and Redoing Custom Commands.
Undo( [Repetitions] ); |
| Parameter | Type | Description |
|---|---|---|
| Repetitions | Integer |
Number of times to undo. May stop earlier if there are no more commands to undo. Default Value: 1 |
' ' This example demonstrates how to use the Undo option in scripting by ' using the DataRepository (internal object database) to see whether ' the object exists in the scene at each step (creating the object, ' deleting, and then undoing the DeleteObj call) ' NewScene , false dim nIdentifier set oDatabase = XSIUtils.DataRepository set oCone = CreatePrim( "Cone", "MeshSurface" ) nIdentifier = oDatabase.GetIdentifier( oCone ) LogMessage oDatabase.HasData( nIdentifier ) 'INFO : True DeleteObj( "Cone" ) LogMessage oDatabase.HasData( nIdentifier ) 'INFO : False Undo LogMessage oDatabase.HasData( nIdentifier ) 'INFO : True |