- Qt 5.15
- Qt Designer Manual
- Qt Designer C++ Classes
- Qt 5.15.19 Reference Documentation

# Qt Designer C++ Classes

Provides classes to create your own custom widget plugins for Qt Designer and classes to access Qt Designer components. More...

## Classes

QAbstractExtensionFactory | Interface for extension factories in Qt Designer
QAbstractExtensionManager | Interface for extension managers in Qt Designer
QAbstractFormBuilder | Default implementation for classes that create user interfaces at run-time
QDesignerActionEditorInterface | Allows you to change the focus of Qt Designer's action editor
QDesignerContainerExtension | Allows you to add pages to a custom multi-page container in Qt Designer's workspace
QDesignerCustomWidgetCollectionInterface | Allows you to include several custom widgets in one single library
QDesignerCustomWidgetInterface | Enables Qt Designer to access and construct custom widgets
QDesignerDynamicPropertySheetExtension | Allows you to manipulate a widget's dynamic properties in Qt Designer's property editor
QDesignerFormEditorInterface | Allows you to access Qt Designer's various components
QDesignerFormWindowCursorInterface | Allows you to query and modify a form window's widget selection, and in addition modify the properties of all the form's widgets
QDesignerFormWindowInterface | Allows you to query and manipulate form windows appearing in Qt Designer's workspace
QDesignerFormWindowManagerInterface | Allows you to manipulate the collection of form windows in Qt Designer, and control Qt Designer's form editing actions
QDesignerMemberSheetExtension | Allows you to manipulate a widget's member functions which is displayed when configuring connections using Qt Designer's mode for editing signals and slots
QDesignerObjectInspectorInterface | Allows you to change the focus of Qt Designer's object inspector
QDesignerPropertyEditorInterface | Allows you to query and manipulate the current state of Qt Designer's property editor
QDesignerPropertySheetExtension | Allows you to manipulate a widget's properties which is displayed in Qt Designer's property editor
QDesignerTaskMenuExtension | Allows you to add custom menu entries to Qt Designer's task menu
QDesignerWidgetBoxInterface | Allows you to control the contents of Qt Designer's widget box
QExtensionFactory | Allows you to create a factory that is able to make instances of custom extensions in Qt Designer
QExtensionManager | Extension management facilities for Qt Designer
QFormBuilder | Used to dynamically construct user interfaces from UI files at run-time

## Detailed Description

In addition, the QFormBuilder class provides the possibility of constructing user interfaces from UI files at run-time.

To include the definitions of the module classes, use the following directive:

     #include <QtDesigner>

To link against the module, add this line to your `qmake` .pro file:

     CONFIG += designer