'宣言 Public Function TextLocationFromScreenPoint( _ ByVal pointInTextAreaCoordinates As Point _ ) As Infragistics.Documents.Parsing.TextLocation
public Infragistics.Documents.Parsing.TextLocation TextLocationFromScreenPoint( Point pointInTextAreaCoordinates )
注: 可視ラインがない場合、0、0 位置を表す Infragistics.Documents.Parsing.TextLocation が返ります。