Method
ALSARawmidiStreamPairget_substream_status
Declaration [src]
gboolean
alsarawmidi_stream_pair_get_substream_status (
ALSARawmidiStreamPair* self,
ALSARawmidiStreamDirection direction,
ALSARawmidiSubstreamStatus* const* substream_status,
GError** error
)
Description [src]
Retrieve status of substream for given direction, which is attached to the pair of streams.
The call of function executes ioctl(2) system call with SNDRV_RAWMIDI_IOCTL_STATUS command
for ALSA rawmidi character device.
Parameters
direction |
ALSARawmidiStreamDirection |
The direction of substream attached to the stream pair. |
|
substream_status |
ALSARawmidiSubstreamStatus |
The status of substream. |
|
| The argument will be modified by the function. | |
| The instance takes ownership of the data, and is responsible for freeing it. | |
error |
GError ** |
The return location for a GError*, or NULL. |