Adjust an output channel's volume.
#include <bps/audiomixer.h>
BPS_API int audiomixer_adjust_output_level(audiomixer_output_t channel,
float level)
BlackBerry 10.0.0
The output channel to adjust the volume for.
The amount to adjust the channel's volume. Final level will not exceed the range of 0.0 to 100.0.
The audiomixer_adjust_output_level() function adjusts the volume of the specified output channel by the specified amount. This function can only be used for audio devices that have full volume control.
BPS_SUCCESS if the volume was adjusted successfully, BPS_FAILURE with errno set otherwise.