### MDI Forms & Windows

B4J does not support creating MDI (Multiple Document Interface) applications.
Instead of MDI applications, B4J supports creating applications with multiple forms or tabpanes.
The "old" MDI style apps has many disadvantages:
https://en.wikipedia.org/wiki/Multiple_document_interface#Disadvantages
The Microsoft Windows Presentation Foundation (WPF), which replaces Windows Forms, does not have built-in support for MDI as Microsoft discourages this feature.
https://code.msdn.microsoft.com/windowsapps/Multiple-Document-059b96a8
Alternatives
In B4J, make use of the TabPane View (see B4J Visual Designer).
The TabPane is similar to Android TabHost or Windows TabControl.

Changed: , Category: Application, File: T6C159M1174.htm, ID: 1174