Set the volume level.
#include <bps/mediacontroller.h>
BPS_API int mediacontroller_volume_set_level(float level)
BlackBerry 10.0.0
The level to set the volume to. You specify the level as a percentage value, such as 50 or 75.
The mediacontroller_volume_set_level() function sets the volume to the given level.
BPS_SUCCESS when the function completes successfully, BPS_FAILURE with errno value set otherwise.