What's the meaning of HKCU/Controlpanel/volume?
Now i want to change volume during a call, and try to use the way of changing registry during a call.
Now i am confused by several items in registry.
there is several items in /HKCU/controlpanel/volume, include: screen, key, ringer, volume, mute
I had set the "ringer" and "volume" to different value, but it is not influence the volume during a call.
I am consufed by its meaning.
Who know that?
and who know how to mute the GSM call during a active call?