I couldn't find such a function (could be I'm not looking in the right place), but I thought this was useful.
; #FUNCTION# ====================================================================================================================
; Name...........: _GUICtrlListView_GetContents
; Description ...: A function to captures the contents of a SysListView32 control into an Array
; Syntax.........: _GUICtrlListView_GetContents($hWnd)
; Parameters ....: $hWnd - A h