http://zarko-gajic.iz.hr/displaying-...ipsis-issues/:
Zitat:
Introduced way back in Delphi 2009 the TTaskDialog (defined in Dialogs.pas) implements task dialogs.
[...]
Using MessageDlg can result in 2 different displays of the actual message dialog. What will get displayed (and more importantly how) to the user is dependent on several factors including the following: Windows version your application is running on, if the application was built including runtime themes and if Windows uses themes.
If your application is running on Windows XP, MessageDlg internally creates and displays a standard Delphi form (though set to look and work as a dialog). If your application is running on at least Windows Vista (therefore Windows Vista, 7, 8, 10, etc) and runtime themes are enabled and used by Windows, MessageDlg will internally create the shiny task dialog!
MfG Dalai