signal callback delegate or function to connect
void callback(gda.tree_node.TreeNode node, gda.tree_node.TreeNode treeNode)
node the #GdaTreeNode which has changed (optional)
treeNode the instance the signal is connected to (optional)
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to NodeChanged signal.
Gets emitted when a node has changed