HI all member, I have question and help you can help me... I write an application (with DirectSound) for recording sound from PC(play back) or from microphone. Beforce today, i must open Recording Control of Volume whenever i record sound from playback or microphone. But now, i want to add option allow user can choose record from playback/microphone on the interface of my application. Can anyone help me, show to me an sample(source code) how to do that? Thanks for your help.