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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)
public TextPointer GetPositionFromPoint(
	Point point,
	bool snapToText
)

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 null if point is not inside a character's bounding box.

Return Value

Type: System.Windows.Documents.TextPointer
A TextPointer to the specified point, or null 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: 4.5.1, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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