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TextPointer.GetLineStartPosition Method (Int32, Int32%)

Returns a TextPointer to the beginning of a line that is specified relative to the current TextPointer, and reports how many lines were skipped.

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

public TextPointer GetLineStartPosition(
	int count,
	out int actualCount


Type: System.Int32
The number of start-of-line markers to skip when determining the line for which to return the starting position. Negative values specify preceding lines, 0 specifies the current line, and positive values specify following lines.
Type: System.Int32%
When this method returns, contains the actual number of start-of-line markers that were skipped when determining the line for which to return the starting position. This value may be less than count if the beginning or end of content is encountered before the specified number of lines are skipped. This parameter is passed uninitialized.

Return Value

Type: System.Windows.Documents.TextPointer
A TextPointer pointing to the beginning of the specified line (with the LogicalDirection set to Forward), or to the beginning of the line closest to the specified line if the specified line is out of range.

If the TextPointer points to an ambiguous position, for example, between two lines, the line in the direction specified by the LogicalDirection property is selected as the relative starting line.

.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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