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GUI for .NET Primer
Basic Types of Forms and Application Design
 

Basic Types of Forms and Application Design

ABL supports several types of .NET forms for building several types of applications. A built-in form class can be used to create standard, borderless, and floating windows. You can also use this class to create modal windows such as a dialog. A special form, the Multiple Document Interface (MDI) form, can contain other forms as child forms, including ABL windows that you created in OpenEdge version 11 or earlier versions.
* What is a form?
* Using the WAIT-FOR statement
* Form inheritance
* Form and window coexistence
* Embedding an ABL window in a .NET form