Method

PwgDeviceenum_params

since: 0.1

Declaration [src]

int
pwg_device_enum_params (
  PwgDevice* self,
  unsigned int id,
  unsigned int start,
  unsigned int num,
  GError** error
)

Description [src]

Requests read-only enumeration of device parameters for id. Results are appended to pwg_device_get_params() and emitted through the PwgDevice::param signal.

Stability: Unstable

Available since: 0.1

Parameters

id

Type: unsigned int

The SPA parameter id to enumerate.

start

Type: unsigned int

The starting enumeration index.

num

Type: unsigned int

Maximum number of params to request, or 0 for all.

error

Type: GError **

The return location for a recoverable error.

The argument can be NULL.

If the return location is not NULL, then you must initialize it to a NULL GError*.

The argument will be left initialized to NULL by the method if there are no errors.

In case of error, the argument will be set to a newly allocated GError; the caller will take ownership of the data, and be responsible for freeing it.

Return value

Type: int

The PipeWire request sequence number, or -1 on failure.