Function
GtkTreeRowReferencenew_proxy
Declaration [src]
GtkTreeRowReference*
gtk_tree_row_reference_new_proxy (
GObject* proxy,
GtkTreeModel* model,
GtkTreePath* path
)
Description [src]
You do not need to use this function.
Creates a row reference based on path
.
This reference will keep pointing to the node pointed to
by path
, so long as it exists. If path
isn’t a valid
path in model
, then NULL
is returned. However, unlike
references created with gtk_tree_row_reference_new(), it
does not listen to the model for changes. The creator of
the row reference must do this explicitly using
gtk_tree_row_reference_inserted(), gtk_tree_row_reference_deleted(), gtk_tree_row_reference_reordered().
These functions must be called exactly once per proxy when the
corresponding signal on the model is emitted. This single call
updates all row references for that proxy. Since built-in GTK+
objects like GtkTreeView
already use this mechanism internally,
using them as the proxy object will produce unpredictable results.
Further more, passing the same object as model
and proxy
doesn’t work for reasons of internal implementation.
This type of row reference is primarily meant by structures that need to carefully monitor exactly when a row reference updates itself, and is not generally needed by most applications.
Parameters
proxy
-
Type:
GObject
A proxy
GObject
.The data is owned by the caller of the function. model
-
Type:
GtkTreeModel
A
GtkTreeModel
.The data is owned by the caller of the function. path
-
Type:
GtkTreePath
A valid
GtkTreePath
-struct to monitor.The data is owned by the caller of the function.
Return value
Type: GtkTreeRowReference
A newly allocated GtkTreeRowReference
, or NULL
.
The caller of the function takes ownership of the data, and is responsible for freeing it. |