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TextBlock.GetRectanglesCore Method

Returns a read-only collection of bounding rectangles for a specified ContentElement.

Namespace:  System.Windows.Controls
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected virtual ReadOnlyCollection<Rect> GetRectanglesCore(
	ContentElement child
)

Parameters

child
Type: System.Windows.ContentElement

A ContentElement for which to generate and return a collection of bounding rectangles.

Return Value

Type: System.Collections.ObjectModel.ReadOnlyCollection<Rect>
A read-only collection of bounding rectangles for the specified ContentElement.

ExceptionCondition
ArgumentNullException

child is null.

Each bounding rectangle in the collection corresponds to a line of content in the ContentElement.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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