how to display a parameter in pyVCP

how can I read a parameter set via G code.  Example reading the probe position to display on the screen.

I set it to #1000 during the tool length calibration routine, but can't seem to read it for display

Thanks
John Lindsay

1. in G-Code:
2. in xml file: 
3. in the HAL file:

I'm trying to do exactly that except

net diff-t pyvcp.diff-t comp.0.in1 motion.analog-out-03

I hope that the introduction of the compare input doesn't mess it up.
I'll try to separate them

Thanks a bunch

now I feel really foolish I finally noticed none of my formatting changes were showing up in addition to the described problem. I discovered I was calling the wrong directory for the file back in the INI file. changing it to the correct one solved the problem.

Thanks for the suggestions.

SOLVED!