V/S Bug to zero event

[Achim]

I use C# and simConnect to be notified about autopilot events.
Everything works fine, for instance if i manipulate the V/S knob
in the simulator (and V/S bug changes its position), my program
received the KEY_AP_VS_VAR_INC/DEC events correctly.

But when the plane reaches the desired altitude and the simulator
automatically sets the V/S bug to zero, i didn't get any event.

Additional to KEY_AP_VS_VAR_INC and KEY_AP_VS_VAR_DEC i tried to register KEY_AP_VS_VAR_SET_ENGLISH, KEY_AP_VS_VAR_SET_METRIC, KEY_VSI_BUG_SELECT, but that doesn't help.

So my question is, which event is fired when the simulator automatically
sets the V/S bug to zero.

(Please apologize my bad English)

Achim

[DocMoriarty]

You would most likely have to poll for the value of "AUTOPILOT VERTICAL HOLD VAR" (feet per minute) to get the current setting, according to the documentation.

[Achim]

Yes, polling works.
But i use the INC/DEC events to be notified, that something changed.
For instance if i receive KEY_HEADING_BUG_INC/DEC event, i poll the value for
heading "AUTOPILOT HEADING LOCK DIR". In the same way, if i receive a
KEY_AP_VS_VAR_INC/DEC event, i poll "AUTOPILOT VERTICAL HOLD VAR"
to get the V/S value.
I thought, this would be the right way, but when not all value changes are
signaled by an event, i must poll the value.

Thanks a lot

Achim

[DocMoriarty]

I agree that it would be nice if tagged data logic would have been available in managed SimConnect. Would make some things way more efficient than polling for that stuff.