Method
interpeerWyrdHandlesetup_property_signal
since: 0.1.0
Declaration
const gchar*
interpeer_wyrd_handle_setup_property_signal (
WyrdHandle* self,
GObject* target,
const gchar* property_path,
GError** error
)
Description
Sets up a signal for the target class to receive that will be emitted when
the wyrd property at property_path changes. The signal will have a detail,
which is the property_path, meaning you can set up multiple signals for
multiple properties.
The emitted signal will have the following arguments:
- The WyrdHandle of the document.
- The name of the updated wyrd property.
- The new value of that wyrd property, as a GValue type.
Note that it is safe to set this or other properties from within the signal callback. If you set the same property, the signal will not be emitted again, preventing infinite loops.
When the WyrdHandle instance is destroyed, all signals connected via this
function are destroyed.
Note that the target instance is not connected to this signal. This is
because bindings to other languages than C make this difficult to achieve.
This is why the function returns the full signal name, so that you can
connect the target afterwards.
Stability: Stable
Available since: 0.1.0
Parameters
target-
Type:
GObjectThe target object for the signal.
The data is owned by the caller of the method. property_path-
Type:
const gchar*The path of the wyrd property to observe.
The data is owned by the caller of the method. The value is a NUL terminated UTF-8 string. 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 aNULLGError*.The argument will be left initialized to NULLby 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.