public int SetSelection(int iAnchorLine, int iAnchorCol, int iEndLine, int iEndCol)
{
TextSpan original = new TextSpan();
original.iStartLine = iAnchorLine;
original.iStartIndex = iAnchorCol;
original.iEndLine = iEndLine;
original.iEndIndex = iEndCol;
TextSpan[] converted = new TextSpan[1];
ErrorHandler.ThrowOnFailure(bufferCoordinator.MapSecondaryToPrimarySpan(original, converted));
return(intellisenseHost.SetContextSelection(converted[0].iStartLine, converted[0].iStartIndex, converted[0].iEndLine, converted[0].iEndIndex));
}