# openal_source_set

(PECL openal >= 0.1.0)

openal_source_set — Set source property

### 说明

openal_source_set ( resource `$source` , int `$property` , mixed `$setting` ) : bool

### 参数

`source`

  An Open AL(Source) resource (previously created by openal_source_create()).

`property`

  Property to set, one of: `AL_BUFFER` (OpenAL(Source)), `AL_LOOPING` (bool), `AL_SOURCE_RELATIVE` (int), `AL_SOURCE_STATE` (int), `AL_PITCH` (float), `AL_GAIN` (float), `AL_MIN_GAIN` (float), `AL_MAX_GAIN` (float), `AL_MAX_DISTANCE` (float), `AL_ROLLOFF_FACTOR` (float), `AL_CONE_OUTER_GAIN` (float), `AL_CONE_INNER_ANGLE` (float), `AL_CONE_OUTER_ANGLE` (float), `AL_REFERENCE_DISTANCE` (float), `AL_POSITION` (array(float,float,float)), `AL_VELOCITY` (array(float,float,float)), `AL_DIRECTION` (array(float,float,float)).

`setting`

  Value to assign to specified `property`. Refer to the description of `property` for a description of the value(s) expected.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 参见

- openal_source_create() - Generate a source resource
- openal_source_get() - Retrieve an OpenAL source property
- openal_source_play() - Start playing the source