CheckBox.CheckBoxAccessibleObject Class

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Source:

CheckBox.CheckBoxAccessibleObject.cs

Provides information about the CheckBox control to accessibility client applications.

This API supports the product infrastructure and is not intended to be used directly from your code.

public: ref class CheckBox::CheckBoxAccessibleObject : System::Windows::Forms::ButtonBase::ButtonBaseAccessibleObject

public class CheckBox.CheckBoxAccessibleObject : System.Windows.Forms.ButtonBase.ButtonBaseAccessibleObject

type CheckBox.CheckBoxAccessibleObject = class
    inherit ButtonBase.ButtonBaseAccessibleObject

Public Class CheckBox.CheckBoxAccessibleObject
Inherits ButtonBase.ButtonBaseAccessibleObject

Inheritance

Object

MarshalByRefObject

StandardOleMarshalObject

AccessibleObject

Control.ControlAccessibleObject

ButtonBase.ButtonBaseAccessibleObject

CheckBox.CheckBoxAccessibleObject

Remarks

Windows Forms has accessibility support built in and provides information about your application that allows it to work with accessibility client applications. Examples of accessibility client applications are screen enlarger and reviewer utilities, voice input utilities, on-screen keyboards, alternative input devices, and keyboard enhancement utilities. The CheckBox.CheckBoxAccessibleObject class inherits from the ButtonBase.ButtonBaseAccessibleObject class to provide information about the CheckBox control to accessibility client applications.

There are instances when you will want to provide custom information, such as a control's name or description, to accessibility client applications. There are two ways of providing this information. To provide limited accessibility information for existing controls, set the control's AccessibleName, AccessibleDescription, AccessibleDefaultActionDescription, and AccessibleRole property values, which will be reported to accessibility client applications.

If you require more accessibility information to be included with your control, you can write your own class that is derived from the AccessibleObject or Control.ControlAccessibleObject classes. For example, if you are writing your own control that is not derived from the common controls, or you require such operations as hit testing within your control, you should create a Control.ControlAccessibleObject for your control by calling the CreateAccessibilityInstance method.

Constructors

CheckBox.CheckBoxAccessibleObject(Control)

This API supports the product infrastructure and is not intended to be used directly from your code. Initializes a new instance of the CheckBox.CheckBoxAccessibleObject class.

Properties

Bounds	Gets the location and size of the accessible object. (Inherited from AccessibleObject)
DefaultAction	This API supports the product infrastructure and is not intended to be used directly from your code. Gets a string that describes the default action of the CheckBox control.
Description	Gets the description of the Control.ControlAccessibleObject. (Inherited from Control.ControlAccessibleObject)
Handle	Gets or sets the handle of the accessible object. (Inherited from Control.ControlAccessibleObject)
Help	Gets the description of what the object does or how the object is used. (Inherited from Control.ControlAccessibleObject)
KeyboardShortcut	(Inherited from ButtonBase.ButtonBaseAccessibleObject)
Name	(Inherited from ButtonBase.ButtonBaseAccessibleObject)
Owner	Gets the owner of the accessible object. (Inherited from Control.ControlAccessibleObject)
Parent	Gets the parent of an accessible object. (Inherited from Control.ControlAccessibleObject)
Role	This API supports the product infrastructure and is not intended to be used directly from your code. Gets the role of this accessible object.
State	This API supports the product infrastructure and is not intended to be used directly from your code. Gets the state of the CheckBox control.
Value	Gets or sets the value of an accessible object. (Inherited from AccessibleObject)

Methods

CreateObjRef(Type)	Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject)
DoDefaultAction()	This API supports the product infrastructure and is not intended to be used directly from your code. Performs the default action associated with this accessible object.
Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetChild(Int32)	Retrieves the accessible child corresponding to the specified index. (Inherited from AccessibleObject)
GetChildCount()	Retrieves the number of children belonging to an accessible object. (Inherited from AccessibleObject)
GetFocused()	Retrieves the object that has the keyboard focus. (Inherited from AccessibleObject)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetHelpTopic(String)	Gets an identifier for a Help topic and the path to the Help file associated with this accessible object. (Inherited from Control.ControlAccessibleObject)
GetLifetimeService()	Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject)
GetSelected()	Retrieves the currently selected child. (Inherited from AccessibleObject)
GetType()	Gets the Type of the current instance. (Inherited from Object)
HitTest(Int32, Int32)	Retrieves the child object at the specified screen coordinates. (Inherited from AccessibleObject)
InitializeLifetimeService()	Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
MemberwiseClone(Boolean)	Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject)
Navigate(AccessibleNavigation)	Navigates to another accessible object. (Inherited from AccessibleObject)
NotifyClients(AccessibleEvents, Int32, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control, giving the identification of the AccessibleObject. (Inherited from Control.ControlAccessibleObject)
NotifyClients(AccessibleEvents, Int32)	Notifies the accessibility client applications of the specified AccessibleEvents for the specified child control. (Inherited from Control.ControlAccessibleObject)
NotifyClients(AccessibleEvents)	Notifies accessibility client applications of the specified AccessibleEvents. (Inherited from Control.ControlAccessibleObject)
RaiseAutomationNotification(AutomationNotificationKind, AutomationNotificationProcessing, String)	Raises the UI automation notification event. (Inherited from AccessibleObject)
RaiseLiveRegionChanged()	Raises the LiveRegionChanged UI automation event. (Inherited from Control.ControlAccessibleObject)
Select(AccessibleSelection)	Modifies the selection or moves the keyboard focus of the accessible object. (Inherited from AccessibleObject)
ToString()	Returns a string that represents the current object. (Inherited from Control.ControlAccessibleObject)
UseStdAccessibleObjects(IntPtr, Int32)	Associates an object with an instance of an AccessibleObject based on the handle and the object id of the object. (Inherited from AccessibleObject)
UseStdAccessibleObjects(IntPtr)	Associates an object with an instance of an AccessibleObject based on the handle of the object. (Inherited from AccessibleObject)

Explicit Interface Implementations

IAccessible.accChildCount	Gets the number of child interfaces that belong to this object. For a description of this member, see accChildCount. (Inherited from AccessibleObject)
IAccessible.accDoDefaultAction(Object)	Performs the specified object's default action. Not all objects have a default action. For a description of this member, see accDoDefaultAction(Object). (Inherited from AccessibleObject)
IAccessible.accFocus	Gets the object that has the keyboard focus. For a description of this member, see accFocus. (Inherited from AccessibleObject)
IAccessible.accHitTest(Int32, Int32)	Gets the child object at the specified screen coordinates. For a description of this member, see accHitTest(Int32, Int32). (Inherited from AccessibleObject)
IAccessible.accLocation(Int32, Int32, Int32, Int32, Object)	Gets the object's current screen location. For a description of this member, see accLocation(Int32, Int32, Int32, Int32, Object). (Inherited from AccessibleObject)
IAccessible.accNavigate(Int32, Object)	Navigates to an accessible object relative to the current object. For a description of this member, see accNavigate(Int32, Object). (Inherited from AccessibleObject)
IAccessible.accParent	Gets the parent accessible object of this object. For a description of this member, see accParent. (Inherited from AccessibleObject)
IAccessible.accSelect(Int32, Object)	Modifies the selection or moves the keyboard focus of the accessible object. For a description of this member, see accSelect(Int32, Object). (Inherited from AccessibleObject)
IAccessible.accSelection	Gets the selected child objects of an accessible object. For a description of this member, see accSelection. (Inherited from AccessibleObject)
IReflect.GetField(String, BindingFlags)	Gets the FieldInfo object corresponding to the specified field and binding flag. For a description of this member, see GetField(String, BindingFlags). (Inherited from AccessibleObject)
IReflect.GetFields(BindingFlags)	Gets an array of FieldInfo objects corresponding to all fields of the current class. For a description of this member, see GetFields(BindingFlags). (Inherited from AccessibleObject)
IReflect.GetMember(String, BindingFlags)	Gets an array of MemberInfo objects corresponding to all public members or to all members that match a specified name. For a description of this member, see GetMember(String, BindingFlags). (Inherited from AccessibleObject)
IReflect.GetMembers(BindingFlags)	Gets an array of MemberInfo objects corresponding either to all public members or to all members of the current class. For a description of this member, see GetMembers(BindingFlags). (Inherited from AccessibleObject)
IReflect.GetMethod(String, BindingFlags, Binder, Type[], ParameterModifier[])	Gets a MethodInfo object corresponding to a specified method, using a Type array to choose from among overloaded methods. For a description of this member, see GetMethod(String, BindingFlags, Binder, Type[], ParameterModifier[]). (Inherited from AccessibleObject)
IReflect.GetMethod(String, BindingFlags)	Gets a MethodInfo object corresponding to a specified method under specified search constraints. For a description of this member, see GetMethod(String, BindingFlags). (Inherited from AccessibleObject)
IReflect.GetMethods(BindingFlags)	Gets an array of MethodInfo objects with all public methods or all methods of the current class. For a description of this member, see GetMethods(BindingFlags). (Inherited from AccessibleObject)
IReflect.GetProperties(BindingFlags)	Gets an array of PropertyInfo objects corresponding to all public properties or to all properties of the current class. For a description of this member, see GetProperties(BindingFlags). (Inherited from AccessibleObject)
IReflect.GetProperty(String, BindingFlags, Binder, Type, Type[], ParameterModifier[])	Gets a PropertyInfo object corresponding to a specified property with specified search constraints. For a description of this member, see GetProperty(String, BindingFlags, Binder, Type, Type[], ParameterModifier[]). (Inherited from AccessibleObject)
IReflect.GetProperty(String, BindingFlags)	Gets a PropertyInfo object corresponding to a specified property under specified search constraints. For a description of this member, see GetProperty(String, BindingFlags). (Inherited from AccessibleObject)
IReflect.InvokeMember(String, BindingFlags, Binder, Object, Object[], ParameterModifier[], CultureInfo, String[])	Invokes a specified member. For a description of this member, see InvokeMember(String, BindingFlags, Binder, Object, Object[], ParameterModifier[], CultureInfo, String[]). (Inherited from AccessibleObject)
IReflect.UnderlyingSystemType	Gets the underlying type that represents the IReflect object. For a description of this member, see UnderlyingSystemType. (Inherited from AccessibleObject)