Hi, everyone, I am finding a way to trigger the a event when a group is being ungroup in CDR X7 with C#? But I don't find such an existing event, do I miss something or could create such event mannually?

Hi
Unfortunately I do not write in C#, in VBA only.
I implemented a similar task as follows:
In the =ThisDocument= module, I used the =SelectionChange= event handler

Public gCount&
Private Sub Document_SelectionChange()
Dim gSR As ShapeRange

Set gSR = ActivePage.Shapes.FindShapes(Type:=cdrGroupShape)

If gCount > gSR.Count Then MsgBox "The groups count has been reduced"
gCount = gSR.Count
End Sub

so, when the user ungroups the shapes, a reminder is displayed.

I hope it will be similar in C#

Taras