MDI Notepad Use Windows Forms App (.NET Framework) and has one Form use bunifu framework. Funtion: File: + New + Open + Save + Save As Edit: + Undo + Redo + Copy + Cut + Paste Format: + WordWrap + Font + Color View: + Zoom (In, Out) + Status Bar + Arrange Icons + Cascade + Title Horizontal + Title Vertical Help: + View Help + Send FeedBack + About Notepad Use MDI to build mutiple form richtextbox, and use strip bar, menu bar,...