Control Reference, Invoke Node

[SysApp]

Can someone explain to me what a reference and invoke node are and when to use them instead of local variables or property nodes.

[Lab Viewer]

Check Control References: Overview and What Is the Function of the Property and Invoke Nodes in LabVIEW? 

Hope this helps

p.s.: for further details, search (entire site) with any of these topics as parameter (for example "+invoke +node")

[Les__Bartel]

These two links don't work for me.  Can you update them?

 - les

[JeffOverton]

control references

invoke node

the links are outdated because the last post in this thread was in 2002

anyway, control references are indirect ways to change things about controls.  most of them can be changed in development by right clicking and sorting through the properties, but references let you change those things at runtime.

invoke nodes are like property nodes, but for actions.  so where a property node would set things like color, value, size, etc, invoke nodes let you do things like close the front panel of a VI, or run a subvi by reference, things like that.