• Value of the volume for the specified source after modification,
• -1 if an error occurred. In this case, the ErrorOccurred variable is set to True. To find out the error details, use ErrorInfo.

New value for the volume:

• Value included between 0 (mute) and 100 (maximum volume).
• Constant used to change the current volume:
  

  volumeMinus	Decrements the value of the volume by one level.
  volumePlus	Increments the value of volume by one level.

Sound source to use:

volumeAlarm	Volume of the alarme.
volumeCall	Volume of calls.
volumeDefault	Volume of default source. This source depends on the phone configuration.
volumeMusic	Volume used when playing an audio or video file.
volumeNotification	Volume of the sound emitted during a new notification.
volumeRing	Volume of phone ring.
volumeSystem	Volume of system sounds.

Available options:

volumeToast	Triggers the display of a toast indicating the new value of the volume for the specified sound source.
volumeVibratorOff	Disables the vibrator of the device when receiving a notification or a call. This option is taken into account only if the specified sound source corresponds to the volumeRing constant or to the volumeNotification constant.
volumeVibratorOn	Enables the vibrator of the device when receiving a notification or a call. This option is taken into account only if the specified sound source corresponds to the volumeRing constant or to the volumeNotification constant.
volumeVibratorIfSilent	Enables the vibrator of the device when receiving a notification or a call if the corresponding sound source is silent. This option is taken into account only if the specified sound source corresponds to the volumeRing constant or to the volumeNotification constant.