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TextBlock.GetPositionFromPoint Method

Returns a TextPointer to the position closest to a specified Point.

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

'Declaration
Public Function GetPositionFromPoint ( _
	point As Point, _
	snapToText As Boolean _
) As TextPointer

Parameters

point
Type: System.Windows.Point

A Point in the coordinate space of the TextBlock for which to return a TextPointer.

snapToText
Type: System.Boolean

true to return a TextPointer to the insertion point closest to point, whether or not point is inside a character's bounding box; false to return Nothing if point is not inside a character's bounding box.

Return Value

Type: System.Windows.Documents.TextPointer
A TextPointer to the specified point, or Nothing if snapToText is false and the specified point does not fall within a character bounding box in the TextBlock content area.

ExceptionCondition
InvalidOperationException

Current, valid layout information for the control is unavailable.

This method always returns a valid TextPointer when snapToText is true.

.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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