Possible Duplicate:
Mute/unmute, Change master volume in Windows 7 x64 with C#
I am new to WPF and trying to find a solution to mute/unmute all microphones and all speakers on the system using a single button click. This is a personal(at home) application and I am using windows 7 64-Bit OS. I am able to find the code for mute/unmute micro phone using core audio API. But I have to mute/unmute all I/O devices.
Muting master volume will do the job? If so can anybody suggest a way to do it in WPF?
Any help will be appreciated! Thanks