The window widget is similar to Windows’ MDI child windows.

• Title support text and/or icon
• Support modal window
• Status bar support
• Minimize and maximize a window
• Open and close a window
• Resize a window

The window widget can be used to show dialogs or to realize a MDI (Multiple Document Interface) Application.

The widgets implements all known metaphor from a window:

• minimize
• maximize
• open
• close
• and so on

The package qx.ui.window contain two other classes that can be used to create a MDI Application:

• The Desktop can act as container for windows. It can be used to define a clipping region for internal windows.
• The Manager handle the z-order and modality blocking of windows managed the connected desktop.

Here are some links that demonstrate the usage of the widget:

• Demonstrate different window types
• Windows with using a Desktop
• A window containing a table demo
• A calculator demo

Here is a link to the API of the Widget:
qx.ui.window.Window