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Some functions of FSUIPCExampleCode_VB_V1.1.0 do not work for me


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I am very excited about the new concept of the demo file. I have already learned a lot from it. Thanks a lot for that.
But some things are not working for me (Win10/FSX/current FSUIPC Paidversion).

I can read all radio frequencies but not write back changed ones.
On the Fuel side I can not read the values, all fields remain empty. No matter which aircraft.
All other functions work. What could be the reason for this?
I just downloaded the latest version again but no change.



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Hi Peter,

I don't know what could be causing this. It's working here with FSX/Windows 10.

Sometimes third-party add-on aircraft don't use the standard FSX data for radios and fuel, but I see you've tried many aircraft. I assume that includes the default aircraft.

Could you please enable the IPC Read and IPC Write logging in the Logging tab of FSUIPC. Then try the Fuel and radios again, shut down the sim and paste the log here. The log will be called FSUIPC4.Log in the Modules folder under the main FSX folder. That might give me some clues.


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Thanks for the quick reply. FSX does not have any addons, default installation.
I will create the log and post it here.

I have tried different things. Start FSX as admin or not, in compatibility mode (Win7 and Vista), Fsuipc registered and not registered and an older version. All works in your example file, only Fuel read and write and set the radio frequency not.  However, the radio frequencies are read out correctly.

FSX is FSX Gold with Servicepack 2.


********* FSUIPC4, Version 4.976 (15th January 2021) by Pete Dowson *********
Windows 10 Home 64 Bit reported as Build 19043, Release ID: 2009 (OS 6.1)
fsx.exe version = 10.0.61472.0
Reading options from "C:\FSXGold\Modules\FSUIPC4.ini"
Running inside FSX on Windows 7
Module base=55E20000
User Name=""
User Addr=""
FSUIPC4 not user registered
WIDEFS7 not user registered, or expired
       16 System time = 03/12/2021 11:51:07
       16 FLT path = "C:\Users\Löwenrudel\Documents\Flight Simulator X Files\"
       16 ------ Module Version Check ------
       16        acontain.dll: 10.0.61472.0
       16             api.dll: 10.0.61472.0
       16        controls.dll: 10.0.61472.0
       16      fs-traffic.dll: 10.0.61472.0
       32             G3D.dll: 10.0.61472.0
       32        language.dll: 10.0.61472.0
       32            sim1.dll: 10.0.61472.0
       32        visualfx.dll: 10.0.61472.0
       32         weather.dll: 10.0.61472.0
       32          window.dll: 10.0.61472.0
       32 ----------------------------------
      563 Trying to connect to SimConnect 10.0.61259.0 ...
      610     ... Okay! Connected!
      672 FS path = "C:\FSXGold\"
     1532 LogOptions=00000000 0000000D
     1532 -------------------------------------------------------------------
     1532 ------ Setting the hooks and direct calls into the simulator ------
     1532 --- CONTROLS timer memory location obtained ok
     1532 --- SIM1 Frictions access gained
     1532 --- FS Controls Table located ok
     1532 --- Installed Mouse Macro hooks ok.
     1532 --- Wind smoothing fix is fully installed
     1532 --- G3D.DLL fix attempt installed ok
     1532 --- SimConnect intercept for texts and menus option is off
     1532 --- All links checked okay
     1532 -------------------------------------------------------------------
     1532 SimConnect_Open succeeded: waiting to check version okay
     1532 Opened separate AI Traffic client okay
     3172 Running in "Microsoft Flight Simulator X", Version: 10.0.61472.0 (SimConnect: 10.0.61259.0)
     3172 Initialising SimConnect data requests now
     3172 FSUIPC Menu entry added
     3219 C:\Users\Löwenrudel\Documents\Flight Simulator X Files\GearDuino.FLT
     3219 C:\FSXGold\SimObjects\Airplanes\A320-214\CLEANcfm56_5B4.AIR
     3813 User Aircraft ID 1 supplied, now being used
     3813 Aircraft loaded: running normally now ...
    54266 System time = 03/12/2021 11:52:01, Simulator time = 11:51:10 (10:51Z)
    60766 Starting everything now ...
    62094 Advanced Weather Interface Enabled
   151844 Sim stopped: average frame rate for last 92 secs = 24.5 fps
   151844    Max AI traffic was 17 aircraft (Deleted 0)
[Log closed by user request, and continued in new file]
   170016 System time = 03/12/2021 11:53:57, Simulator time = 11:52:43 (10:52Z)
   170016 *** FSUIPC log file being closed
Minimum frame rate was 20.4 fps, Maximum was 24.8 fps
Minimum available memory recorded was 3084Mb
Average frame rate for running time of 92 secs = 24.5 fps
G3D fix: Passes 7600, Null pointers 0, Bad pointers 0, Separate instances 0
Maximum AI traffic for session was 17 aircraft
Memory managed: 47 Allocs, 46 Freed
********* FSUIPC Log file closed ***********



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Hi Peter,

The log doesn't show any IPC Read or Writes. I think it's because you made a new log and posted the wrong one...

[Log closed by user request, and continued in new file]

Please can you try again. With the logging (IPC Read/Writes) enabled in FSUIPC:

  1. Start FSX
  2. Use the example program to read the Radios
  3. Try to change a radio
  4. Try to read the fuel
  5. Close FSX.

That should get the proper log.


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Hi Peter,

The log shows that it's not even attempting to read the fuel tanks or write the radios. 

I had a good look at the VB project and all of the event bindings were messed up. I don't know why it worked okay on my PC here. 

I've gone through and fixed them all, so please get version 1.2 from the website. Everything should work okay now.


Sorry for the inconvenience.


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