1. Alexander Stolte

    B4J Question Undo/Redo by canvas.drawline with UndoManager

    Hello, How can i save the state of my Canvas drawing for the Undo and Redo Button with the UndoManager? i use this code for drawing: Process_Globals Private pnl_back As B4XView Private cvs_back As B4XCanvas End Sub Sub AppStart (Form1 As Form, Args() As String)...