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TextBlock.GetPositionFromPoint Method

.NET Framework 4.5

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

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

Syntax

C++

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.

Exceptions

Exception	Condition
InvalidOperationException	Current, valid layout information for the control is unavailable.

Remarks

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

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8 Consumer Preview, Windows Server 8 Beta, Windows 7, Windows Server 2008 SP2, 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.

Reference

TextBlock Class

System.Windows.Controls Namespace

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