Control Object Properties
HeaderLock Disable Header
   
Description This property controls the ability of the user to click on or drag the header of a list view. If set to zero (0) then the column header is NOT locked. If set to one (1) then the column header is locked and mouse clicks or dragging of the column header is not accepted.

The 'HeaderLock property is a +PxPlus Exclusive (build 9200)

   
Default 0
   
Used by LISTVIEW