How to Add a Checkbox to a List View Column Header

IntroductionThere doesn't appear to be much, if any, example code of how to place a checkbox in the column header of a list view control. This can be used to add "check/uncheck all" functionality if you're using LVS_EX_CHECKBOXES in your list view window style to display a check box next to each item. Unfortunately, the method used here only works with Windows Vista/Server 2008 and later.  It