Inserts the specified text in the document at the specified document offset. If the document offset refers to a block node, it finds an appropriate text node inside the block node to add the text to. If a text node is not found, it will add one to ensure the text gets inserted at a location that would be considered 'intended' within the block node.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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