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Fire Undo and Redo Pre- and Post-notifications in Part Document (VBA)

This example shows how to fire undo and redo pre- and post-notifications in a part document.



' --------------------------------------------------------------------------

' Preconditions: Open:

' <SOLIDWORKS_install_dir>\samples\tutorial\api\cstick.sldprt.


' A circle is created, undone, redone, and undone again.

' A pre and post-notification is fired and a message box is displayed

' before and after, respectively, each Undo and Redo. Click OK to close

' each message box.


' Postconditions: None

' --------------------------------------------------------------------------

Option Explicit


Dim swApp As SldWorks.SldWorks

Dim swModel As SldWorks.ModelDoc2

Dim swPart As SldWorks.PartDoc

Dim swModelDocExt As SldWorks.ModelDocExtension

Dim swSketchManager As SldWorks.SketchManager

Dim swSketchSegment As SldWorks.SketchSegment

Dim boolstatus As Boolean

Dim swPartEvents As Class1


Sub main()


Set swApp = Application.SldWorks

Set swModel = swApp.ActiveDoc


' Event notification

Set swPart = swModel

Set swPartEvents = New Class1

Set swPartEvents.swPart = swApp.ActiveDoc


' Create a circle on the

' top face of the candlestick

Set swModelDocExt = swModel.Extension

boolstatus = swModelDocExt.SelectByID2("", "FACE", 0.00140404215739, 0.2199999999999, 0.001897848026772, False, 0, Nothing, 0)

Set swSketchManager = swModel.SketchManager

Set swSketchSegment = swSketchManager.CreateCircle(0#, 0#, 0#, 0.01296, -0.006347, 0#)


' Undo creation of circle

' and fire an undo pre - and post-

' notification

swModel.EditUndo2 1


' Redo creation of circle

' and fire a redo pre- and post-

' notification

swModel.EditRedo2 1


' Undo creation of circle again

' to leave model document unchanged

' and fire another Undo pre- and post-

' notification

swModel.EditUndo2 1


swModel.ClearSelection2 True

swModel.ForceRebuild3 True


End Sub


Class Module

Option Explicit


Public WithEvents swPart As SldWorks.PartDoc


Private Function swPart_UndoPostNotify() As Long

    MsgBox "An Undo post-notification event has been fired."

End Function


Private Function swPart_UndoPreNotify() As Long

    MsgBox "An Undo pre-notification event has been fired."

End Function


Private Function swPart_RedoPostNotify() As Long

    MsgBox "A Redo post-notification event has been fired."

End Function


Private Function swPart_RedoPreNotify() As Long

    MsgBox "A Redo pre-notification event has been fired."

End Function

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