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Hi,
I am working on a FlexGui for a waterjet and I want to have some custom buttons that call hal and emc functions. 
I see I can import a python module and do the "from functools import partial" to get the parent, but does the parent also pass access to hal and emc?

I am trying to make a custom stop button that will turn off some hal output pins with hal.set_p() and then call emc.abort() in python so it will turn off the jet and sand when pressed. I also need to make one that will pause by setting the hal pins off and setting the motion.adaptivefeed to 0.

Any help would be appreciated

Made the change net tool-change-request iocontrol.0.tool-change.
 

I have made some progress:

I have had to set the axis velocities to constant values (500000, where the encoder has 524288 counts per revolution), since I don't see any HAL pins from the motion planner that carry that information. I will see about writing a custom HAL component that can interpolate velocity from waypoints.

I assembled a MB2HAL config file, and loaded it as a userspace component through halrun. With that, I could control each motor, with no perceptible lag between command entry and motion.

I can control the motors through Axis, but in G1 feed mode at the MDI, I get one step every second or so. For instance, I will command one axis to G1 Z1.0 F5.0 and it will move ~60° every second or so until the move is done. In G0 rapid mode at the MDI, there is a significant delay, again roughly one second between the time I press Enter and the time the motor begins to move. While the move is in progress, distance to go changes smoothly, but actual position (and the motor shaft) move in steps.