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      How to: Determine the Document Element under the Mouse Pointer
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How to: Determine the Document Element under the Mouse Pointer

The following code example shows how to use the HitTestManager.HitTest method to get information about the element located under the mouse pointer. The method returns the RichEditHitTestResult instance, containing the information about a specific document element (RichEditHitTestResult.LayoutElement) located under the test point. It allows you to get the element's type (LayoutElement.Type) and the area it occupies in the document (LayoutElement.Bounds).

In this example, the ToolTipController is used to show the element information. Handle the ToolTipController.GetActiveObjectInfo event to make the ToolTip display the information about the hovered element, as shown below:

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A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=T399401.

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