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ToolStripMenuItem.CreateAccessibilityInstance Method

  • Reference

Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll
Source:
ToolStripMenuItem.cs
Source:
ToolStripMenuItem.cs
Source:
ToolStripMenuItem.cs

Creates a new accessibility object for the ToolStripMenuItem.

protected:
 override System::Windows::Forms::AccessibleObject ^ CreateAccessibilityInstance();
protected override System.Windows.Forms.AccessibleObject CreateAccessibilityInstance ();
override this.CreateAccessibilityInstance : unit -> System.Windows.Forms.AccessibleObject
Protected Overrides Function CreateAccessibilityInstance () As AccessibleObject

Returns

AccessibleObject

A new AccessibleObject for the ToolStripMenuItem.

Examples

The following code example demonstrates overriding the CreateAccessibilityInstance method to create an accessibility-aware chart control, using the AccessibleObject and Control.ControlAccessibleObject classes to expose accessible information. The control plots two curves along with a legend. The ChartControlAccessibleObject class, which derives from ControlAccessibleObject, is used in the CreateAccessibilityInstance method to provide custom accessible information for the chart control. Because the chart legend is not an actual Control-based control, but instead is drawn by the chart control, it does not any built-in accessible information. Because of this, the ChartControlAccessibleObject class overrides the GetChild method to return the CurveLegendAccessibleObject that represents accessible information for each part of the legend. When an accessible-aware application uses this control, the control can provide the necessary accessible information.

This code example is part of a complete code example that can be found at the AccessibleObject class overview.

protected:
   // Overridden to return the custom AccessibleObject
   // for the entire chart.
   virtual AccessibleObject^ CreateAccessibilityInstance() override
   {
      return gcnew ChartControlAccessibleObject( this );
   }

// Overridden to return the custom AccessibleObject 
// for the entire chart.
protected override AccessibleObject CreateAccessibilityInstance() 
{            
    return new ChartControlAccessibleObject(this);
}

' Overridden to return the custom AccessibleObject 
' for the entire chart.
Protected Overrides Function CreateAccessibilityInstance() As AccessibleObject
    Return New ChartControlAccessibleObject(Me)
End Function

Applies to

See also