Windows – Vista/Win7 Delphi Audio device information

Running Delphi 7 under Vista is no problem if you can turn UAC off. With UAC on, you get an error message when starting D7, but it still works, just click ok and go on.

Programs compiled with D7 have no problem with Vista. But new features of Vista are supported by Delphi 2007/2009 only.

We use D7 on XP and on Vista, building and maintaining a commercial App which has gone from D2 to D4, D5 to D7. Besides problems with the BDE, which made us switch to DBX (Corelabs) there are no problems.

Larry Osterman (one of the Vista Audio developers) has a great blog with many posts about Vista Audio. Some potentially helpful helpful posts:

• http://blogs.msdn.com/larryosterman/archive/2005/06/13/428724.aspx
• http://blogs.msdn.com/larryosterman/archive/2005/06/14/428962.aspx
• http://blogs.msdn.com/larryosterman/archive/2005/09/21/472480.aspx
• http://blogs.msdn.com/larryosterman/archive/2005/09/23/473351.aspx
• http://blogs.msdn.com/larryosterman/archive/2007/03/06/how-do-i-change-the-master-volume-in-windows-vista.aspx
• http://blogs.msdn.com/larryosterman/archive/2007/10/31/what-happens-when-audio-rendering-fails.aspx

Also:

• Enumerating Audio Devices
• Audio Endpoints in Vista (PPT)

I thought I remembered him having some sample code for doing exactly what you describe, but I'm probably remembering wrong as I couldn't find it.