The big bugs have been killed and it seems to work correctly.
I have added a new sort criteria : Number_Of_Colors
The program is slower but this was a missing thing for searching duplicated images.
Before displaying the images, the program sorts all the items.
I have removed the WM_ACTIVATE message, so to refresh an image manualy, use Ctrl F5.
The program is available at https://www.mediafire.com/file/z4c7i3b6xlyuq7q/Display.7z/file (https://www.mediafire.com/file/z4c7i3b6xlyuq7q/Display.7z/file)
An installation program is available too at https://www.mediafire.com/file/ei5jja6uhklrq1h/7Up_Display.exe/file (https://www.mediafire.com/file/ei5jja6uhklrq1h/7Up_Display.exe/file)
Great - got it will try new version today.
Thanks,
John z