IBufferGraph::MapUpToSnapshot Method (SnapshotSpan, SpanTrackingMode, ITextSnapshot^)

Visual Studio 2015

Maps a span in the current snapshot of a buffer that is a member of the buffer graph to a sequence of spans in a snapshot of a designated buffer.

Namespace: Microsoft.VisualStudio.Text.Projection
Assembly: Microsoft.VisualStudio.Text.Data (in Microsoft.VisualStudio.Text.Data.dll)

Syntax

NormalizedSnapshotSpanCollection^ MapUpToSnapshot(
	SnapshotSpan span,
	SpanTrackingMode trackingMode,
	ITextSnapshot^ targetSnapshot
)

span: Type: Microsoft.VisualStudio.Text::SnapshotSpan
A span in some buffer in the IBufferGraph.

trackingMode: Type: Microsoft.VisualStudio.Text::SpanTrackingMode
How span is tracked to the current snapshot if necessary.

targetSnapshot: Type: Microsoft.VisualStudio.Text::ITextSnapshot^
The snapshot to which to map.

A collection of zero or more snapshot spans in targetSnapshot to which the span maps using this graph.

Exception	Condition
ArgumentNullException	span.Snapshot is null.
ArgumentOutOfRangeException	trackingMode is not a valid SpanTrackingMode.