Version 1.6.5 or higher - ListLoadNext() swittches from Setting tab

Beside the "About" tab it now automatically switches
to the "Text" tab also from the (new) "Settings" tab
Version 1.6.5 or higher - another message crackers

Both WM_SIZE and WM_PAINT for Histogram windows are replaced by message cracker macros & functions
Version 1.6.5 or higher - message cracker for WM_NOTIFY

Now all windows messages are handled by message cracker macros & functions