[ Version ( since = "2.86" ) ]
public void set_os (int os)
Sets the [property@Gio.
ZlibCompressor:os] property.
Note: it is an error to call this function while a compression is in progress; it may only be called immediately after creation of this, or after resetting it with [method@Gio.Converter.reset].
| this |
a compressor |
| os |
the OS code to use, or `-1` to unset |