GParamFlags certain aspects of custom gobject parameters to be configured
Value | Symbolic name | Description |
| 1 | Gobject::PARAM_READABLE | the parameter is readable |
| 2 | Gobject::PARAM_WRITABLE | the parameter is writable |
| 4 | Gobject::PARAM_CONSTRUCT | the parameter will be set upon object construction |
| 8 | Gobject::PARAM_CONSTRUCT_ONLY | the parameter will only be set upon object construction |
| 16 | Gobject::PARAM_LAX_VALIDATION | upon parameter conversion strict validation is not required |
| 3 | Gobject::PARAM_READWRITE | Simple alias for Gobject::PARAM_READABLE | Gobject::PARAM_WRITABLE |