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The QueryVisualClass is a WindowManager that displays a query input dialog and handles the dialog events. The QueryVisualClass is an abstract class that handles all of the basic Window functionality for the query dialog.

**QueryVisualClass Concepts**

The QueryVisualClass is the parent class for the Query dialogs. It is designed to encapsulate the standard query requirements for the window manager.

**QueryVisualClass:Relationship to Other Application Builder Classes**

The QueryVisualClass is derived from the WindowManager. The classes derived from the QueryVisualClass are optionally used by the QueryClass object.

The QueryFormVisual and the QueryListVisual classes are derived QueryVisualClasses.

**QueryVisualClass:ABC Template Implementation**

The ABC Templates do not instantiate the QueryClass object independently. The templates instantiate the derived QueryFormClass or QueryListClass instead.

**QueryVisualClass Source Files**

The QueryVisualClass source code is installed by default to the Clarion \LIBSRC folder. The specific QueryVisualClass files and their respective components are:

|  | ABQUERY.INC | QueryVisual declarations |
|  | ABQUERY.CLW | QueryVisual method definitions |