How to programmatically access XControl Methods

I have developed a XControl that includes several internal methods. I would like to programmatically invoke these methods from outside the XCtl but I can't find a way to programmatically obtain an appropriate XCtl reference (i.e. one that allows access to these methods). Among other things, I have tried using the OpenG VI "Open VI Object Reference" which gives the correct reference but no access to the internal methods (probably cos it doesn't recognize XCtls as an allowable vi object class).
Any help or suggestions would be greatly appreciated.
Andrew

Hi DrewBob,
I can't reproduce the issue you're seeing. I can indeed access properties and methods for an Xcontrol from its reference inside a subVI.
In any case, you can definitely get around this by following these steps. This is overkill, and these steps weren't necessary for me, but should ensure that you can do what you want:
1. Create a reference to your Xcontrol. Right click the reference and select Create >> Control. Right click the new control and select Advanced >> Customize.
2. In the Control Editor window, select Type-Def from the control type drop down menu. Save this type-def control reference.
3. For the reference input in your subVI, use a generic control reference. You can find one of these in the controls palette under Modern Controls >> Refnum >> Control Refnum.
4. Now wire that reference in your subVI into a To More Specific Class subVI. Place a copy of your control reference type def on the block diagram of the subVI and wire its output into the Target Class input. The resulting reference should resemble the picture below and will contain all necessary custom properties and methods. Furthermore, you could use a case structure and use this one VI to alter multiple different kinds of Xcontrols using one control reference input.
If this doesn't work for you, could you post a small VI (or zipped project) that demonstrates the problems you are having?
Message Edited by Jarrod S. on 03-27-200611:50 AM
Jarrod S.
National Instruments
Attachments:
ToMoreSpecificClass.JPG ‏12 KB

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