Set attributes or change attributes on this.
Subsequent calls to this function calling the same attributes will override the earlier values.
Note that GSound will set the APPLICATION_NAME and APPLICATION_ID for you if using Application, so you do not normally need to set these yourself.
| this |
A Context |
| ... |
null terminated list of attribute name-value pairs |
| error |
Return location for error |
|
true if attributes were updated successfully |