Lazarus known issues (things that will never be fixed)
From Free Pascal wiki
Win32/Win64 issues
GTK 1 issues
- TTabSheet.TabVisible property. TabSheet under gtk1 can either be fully hiden (with Tab) or fully visible (with Tab). There is no posibility to show TabSheet without it tab. Look at gtk1 sources (gtknotebook.c) for details.
GTK 2 issues
Carbon issues
Go to Carbon_interface_issues.