TextPattern.TextSelectionChangedEvent Field

Reference

Definition

Namespace:: System.Windows.Automation

Assembly:: UIAutomationClient.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Identifies the event raised when the text selection is modified.

public: static initonly System::Windows::Automation::AutomationEvent ^ TextSelectionChangedEvent;

public static readonly System.Windows.Automation.AutomationEvent TextSelectionChangedEvent;

 staticval mutable TextSelectionChangedEvent : System.Windows.Automation.AutomationEvent

Public Shared ReadOnly TextSelectionChangedEvent As AutomationEvent

Field Value

AutomationEvent

Examples

// Initialize a selection changed listener.
// The target selection is reflected in the client.
Automation.AddAutomationEventHandler(
    TextPattern.TextSelectionChangedEvent,
    targetDocument,
    TreeScope.Element,
    OnTextSelectionChange);

' Initialize a selection changed listener.
' The target selection is reflected in the client.
Dim onSelectionChanged As AutomationEventHandler = _
New AutomationEventHandler(AddressOf OnTextSelectionChange)
Automation.AddAutomationEventHandler( _
TextPattern.TextSelectionChangedEvent, targetDocument, _
TreeScope.Element, onSelectionChanged)

Remarks

Some text controls handle the text insertion point (cursor) as a zero-width text selection and might raise TextSelectionChangedEvent when the cursor is moved.

Note

To follow cursor movements, UI Automation clients are advised to keep track of insertion point changes by listening for corresponding UI Automation element events rather than depending on TextSelectionChangedEvent.

This identifier is used by UI Automation client applications UI Automation providers should use the equivalent field in TextPatternIdentifiers.

Applies to

Dela via