How to Get the Undo/Redo Description?

16 Dec 20241 minute to read

The HistoryManager class has an option to get undo or redo description. You can use the GetUndoDescriptions or RedoDescriptions method to get the desired depth of descriptions available in the history of undo or redo list, respectively. The following code example illustrates this.

string[] strDescriptions;

int nDescWanted = 1;

//Gets an undo description from the undo list.

int nDescReturned = diagram1.Model.HistoryManager.GetUndoDescriptions(nDescWanted, out strDescriptions);

//Gets a redo description from the redo list.

nDescReturned = diagram1.Model.HistoryManager.GetRedoDescriptions(nDescWanted, out strDescriptions);
Dim strDescriptions() As String

Dim nDescWanted As Integer = 1

'Gets an undo description from the undo list.

Dim nDescReturned As Integer = diagram1.Model.HistoryManager.GetUndoDescriptions(nDescWanted, strDescriptions)

'Gets a redo description from the redo list.

nDescReturned = diagram1.Model.HistoryManager.GetRedoDescriptions(nDescWanted, strDescriptions)