Creating Property Nodes and Invoke Nodes

You can create a Property Node and an Invoke Node for the same front panel object and you can create multiple Property Nodes and Invoke Nodes for the same object.

Complete the following steps to create a Property Node or Invoke Node.

  1. Right-click a front panel object or its block diagram terminal and select Create»Property Node or Create»Invoke Node from the shortcut menu to create a Property Node or Invoke Node implicitly linked to the object. If the object has an owned label, the Property Node has the same label. You can change the label after creating the node.

    You also can select a Property Node or Invoke Node located on the Functions»Application Control palette and place it on the block diagram, but you must wire a refnum for the front panel object to the reference terminal. Windows To create an ActiveX Property Node or Invoke Node, wire an ActiveX container or automation refnum to the reference terminal.
  2. Right-click the white area of the node that appears on the block diagram and select a property or method from the Properties or Methods shortcut menus. You also can use the Operating tool to click the white area of the node and select a property or method from the shortcut menu.

    If you select a method, the associated parameters appear in the node.
  3. To add terminals to the Property Node, right-click the white area of the node and select Add Element from the shortcut menu or use the Positioning tool to resize the node.
Note  If you place a Property Node in a While Loop or For Loop and that Property Node returns a reference to an object, you must close that reference for each iteration of the loop. If possible, move the Property Node outside the loop and close the reference after all iterations of the loop execute.