How to retrieve values of PMDG 737 condition variables through FSUIPC

[WRiker2701]

Hi i'm working on a C# plugin for Voice Attack which communicates internally with MSFS variables, but i'm a bit of a noob in this so i've been struggling a little bit.

So i integrated FSUIPCs dll into my project, and i managed to code the way to set controls in the aircraft through FSUIPCConnection.SendControlToFS and the PMDG_737_NGX_Control enum. That one was pretty simple. My issue now is to find the way to retrieve the value of a condition variable (the ones listed in the PMDG 737 SDK header file) by inputting the name of the variable. For example "APU_EGTNeedle" and to get the float value out of it.

What would be the easiest way to do this, is there another method like "SendControlToFS" but to read data?

 

Cheers!

[John Dowson]

You posted in the wrong forum - I have moved your post to the specific sub-forum for FSUIPC7 / MSFS.

21 hours ago, WRiker2701 said:

My issue now is to find the way to retrieve the value of a condition variable (the ones listed in the PMDG 737 SDK header file) by inputting the name of the variable. For example "APU_EGTNeedle" and to get the float value out of it.

The additional variables provided by the PMDG SDK are added to an FSUIPC offset area. For example, APU_EGTNeedle is on offset 0x64E8:

64E8

4

FLT32

APU_EGTNeedle

Please see the document Offset Mapping for PMDG 737-700.pdf in your FSUIPC7 Documents folder. You need to enable data broadcasts in the PMDG 737 ini file first (explained in the document).

John

[WRiker2701]

Offset then. Should i use the "Process()" method then? I guess "ClassInstance" would be the offset number, and how to get the variable value? i see this method returns void...

[John Dowson]

I don't know the API you are using - if its Paul Henty's FSUIPC client dll for .Net client, please use his support sub-forum:

https://forum.simflight.com/forum/167-fsuipc-client-dll-for-net/

John

[WRiker2701]

Moving my question there. Thanks.