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InkPicture.InkEnabled Property

Gets or sets a value that specifies whether the InkPicture control collects pen input.

Namespace:  Microsoft.Ink
Assembly:  Microsoft.Ink (in Microsoft.Ink.dll)

public bool InkEnabled { get; set; }

Property Value

Type: System.Boolean
true if the InkPicture control collects pen input. Default.
false if the InkPicture control does not report pen input. No pen-related events fire.

In addition to ink, pen input may include in-air packets, cursor in range events, and so on.

The InkPicture control collects ink in Microsoft® Windows® XP Tablet PC Edition or any edition of Windows 2000, Windows Server 2003, or Windows XP on which the Windows XP Tablet PC Edition SDK is installed. However, handwriting recognition occurs only if you use Windows XP Tablet PC Edition. In any edition of Windows 2000, Windows Server 2003, or of Windows XP other than Windows XP Tablet PC Edition, the InkEnabled property is always false if the Windows XP Tablet PC Edition SDK is not installed.

If the window input rectangle of an enabled InkCollector or InkOverlay (set in the constructor or with the SetWindowInputRectangle method) overlaps the window input rectangle of an InkPicture, a COMException exception is thrown.


Overlap can occur without an error as long as only one of the input rectangles is enabled at anytime.

While a control is not enabled, you receive no events.

When you set the Enabled property of a container control to false, all of its contained controls are disabled as well.

You cannot set the InkEnabled property to false while the control is collecting ink (CollectingInk property is true.).

The InkEnabled property must be set to false before setting or calling specific properties and methods of the control. If you try to change the specified properties or call the specified methods, an error occurs.

The following properties and methods cannot be set or called unless the InkEnabled property is first set to false:

You should set the InkEnabled property for an InkPicture control to false before you shut down an application.

The following example defines an event handler for a ButtonClick event. When the event is fired, the handler toggles the value of the InkEnabled property, and updates the text of the Button to reflect what action the next click will perform.

// Event handler for the button's Click event. 
private void buttonToggle_Click(object sender, System.EventArgs e)
    // toggle the InkEnabled property and update button text
    mInkPicture.InkEnabled = !mInkPicture.InkEnabled;
    ((Button)sender).Text = (mInkPicture.InkEnabled) ? "Disable Ink" : "Enable Ink";

Windows 7, Windows Vista, Windows Server 2008 R2, Windows Server 2008

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.0