Release 10.1A: OpenEdge Development:
Progress 4GL Reference

MAX-BUTTON attribute

Determines whether the window has a maximize button in its caption bar.

Data type: LOGICAL

Access: Readable/Writable

Applies to: WINDOW widget

In character interfaces, this attribute has no effect.

In Windows, a window can have maximize and minimize buttons depending on the settings of the MAX-BUTTON and MIN-BUTTON attributes. Both buttons are created on the window. If you set the MAX-BUTTON to TRUE and the MIN-BUTTON to FALSE, only the maximize button is enabled; the minimize button is disabled.

The MAX-BUTTON attribute must be set before the window is realized. The default value is TRUE.