This property returns an integer value that indicates the position within the TextEditorToolBase's text where the selection begins. Used in combination with SelectionLength you can set the selection to any text that exists in the control.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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