Undo and redo tool for Server/Desktop

1PDFDoc doc(filename);
2
3// Retrieve the undo manager.
4UndoManager undo_manager = doc.GetUndoManager();
5
6// Take a snapshot to which we can undo after making changes.
7ResultSnapshot snap0 = undo_manager.TakeSnapshot();
8
9// perform some document processing using read write operations 
10// found under 'Editing Page Content' or 'Page Manipulation'
11
12// Take a snapshot after making changes, so that we can redo later (after undoing first).
13ResultSnapshot snap1 = undo_manager.TakeSnapshot();
14
15if (undo_manager.CanUndo())
16{
17	ResultSnapshot undo_snap = undo_manager.Undo();
18	
19	if (undo_manager.CanRedo())
20	{
21		ResultSnapshot redo_snap = undo_manager.Redo();
22	}
23}

1doc := NewPDFDoc(filename)
2
3// Retrieve the undo manager.
4undoManager := doc.GetUndoManager()
5
6// Take a snapshot to which we can undo after making changes.
7snap0 := undoManager.TakeSnapshot()
8
9// perform some document processing using read write operations 
10// found under 'Editing Page Content' or 'Page Manipulation'
11
12// Take a snapshot after making changes, so that we can redo later (after undoing first).
13snap1 = undoManager.TakeSnapshot()
14
15if undoManager.CanUndo() {
16	undoSnap := undoManager.Undo()
17	if undoManager.CanRedo() {
18		redoSnap := undoManager.Redo()
19	}
20}

1PDFDoc doc = new PDFDoc(filename);
2
3// Retrieve the undo manager.
4UndoManager undo_manager = doc.getUndoManager();
5
6// Take a snapshot to which we can undo after making changes.
7ResultSnapshot snap0 = undo_manager.takeSnapshot();
8
9// perform some document processing using read write operations 
10// found under 'Editing Page Content' or 'Page Manipulation'
11
12// Take a snapshot after making changes, so that we can redo later (after undoing first).
13ResultSnapshot snap1 = undo_manager.takeSnapshot();
14
15if (undo_manager.canUndo())
16{
17	ResultSnapshot undo_snap = undo_manager.undo();
18	
19	if (undo_manager.canRedo())
20	{
21		ResultSnapshot redo_snap = undo_manager.redo();
22	}
23}

1PTPDFDoc *doc = [[PTPDFDoc alloc] initWithFilepath: @filename];
2
3// Retrieve the undo manager.
4PTSDFUndoManager* undo_manager = [doc GetUndoManager];
5
6// Take a snapshot to which we can undo after making changes.
7PTSDFResultSnapshot* snap0 = [undo_manager TakeSnapshot];
8
9// perform some document processing using read write operations 
10// found under 'Editing Page Content' or 'Page Manipulation'
11
12// Take a snapshot after making changes, so that we can redo later (after undoing first).
13PTSDFResultSnapshot* snap1 = [undo_manager TakeSnapshot];
14
15if ([undo_manager CanUndo])
16{
17	PTSDFResultSnapshot* undo_snap = [undo_manager Undo];
18	
19	if ([undo_manager CanRedo])
20	{
21		PTSDFResultSnapshot* redo_snap = [undo_manager Redo];
22	}
23}

1doc = PDFDoc(input_path + filename)
2# Retrieve the undo manager.
3undo_manager = doc.GetUndoManager()
4# Take a snapshot to which we can undo after making changes.
5snap0 = undo_manager.TakeSnapshot()
6# perform some document processing using read write operations 
7# found under 'Editing Page Content' or 'Page Manipulation'
8# Take a snapshot after making changes, so that we can redo later (after undoing first).
9snap1 = undo_manager.TakeSnapshot()
10if undo_manager.CanUndo():
11	undo_snap = undo_manager.Undo()
12	
13	if undo_manager.CanRedo():
14		redo_snap = undo_manager.Redo()

1doc = PDFDoc.new(input_path + filename)
2# Retrieve the undo manager.
3undo_manager = doc.GetUndoManager()
4# Take a snapshot to which we can undo after making changes.
5snap0 = undo_manager.TakeSnapshot()
6# perform some document processing using read write operations 
7# found under 'Editing Page Content' or 'Page Manipulation'
8# Take a snapshot after making changes, so that we can redo later (after undoing first).
9snap1 = undo_manager.TakeSnapshot()
10if undo_manager.CanUndo()
11	undo_snap = undo_manager.Undo()
12	
13	if undo_manager.CanRedo():
14		redo_snap = undo_manager.Redo()

1Using doc As PDFDoc = New PDFDoc(input_path & filename)
2	' Retrieve the undo manager.
3	Dim undo_manager As UndoManager = doc.GetUndoManager()
4	' Take a snapshot to which we can undo after making changes.
5	Dim snap0 As ResultSnapshot = undo_manager.TakeSnapshot()
6	' perform some document processing using read write operations 
7	' found under 'Editing Page Content' or 'Page Manipulation'
8	' Take a snapshot after making changes, so that we can redo later (after undoing first).
9	Dim snap1 As ResultSnapshot = undo_manager.TakeSnapshot()
10	If undo_manager.CanUndo() Then
11		Dim undo_snap As ResultSnapshot = undo_manager.Undo()
12		
13		If undo_manager.CanRedo() Then
14			Dim redo_snap As ResultSnapshot = undo_manager.Redo()
15		End If
16	End If