List Box component in Delphi

Thanks mrLong

Hi Mr Long, I was wondering if you could please help me with my PAT? My program keeps giving me an Access violation: "00634063 in module frmLibrary_p.exe Read of address 000003D8" and I have tried to delete the application file in the debug folder to correct this error but everytime I run the program, it creates the application file again thus giving me this error again and again.
Good day Nico

Mr long could you post a video doing this term's IT PAT