csharp & lua & offset

[Goksel Sunar]

Hi

 

I create one lua file and assign to F6 key  in the "FSUIPC Options and  Settings"  windows and ,  if I hit F6 key in the simulation , this is working good now. 

 

Lua Code :

 

function Pitot_HEAT()
    
    testVar = ipc.readUD(0x66C0)
    if logic.And(testVar,1) == 1  then
            ipc.control(65858,1)
        else
            ipc.control(65858,0)
    end
end

event.offset(0x66C0, 'UD', 'Pitot_HEAT')

 

I am writing c# windows forms application and , I want to access this offset and change value .

 

I wrote this code but did not get results.

 

c# Code:

 

private Offset<int> Pitot_HEAT = new Offset<int>(0x66C0)

 

//ON

 Pitot_HEAT.Value=1;
 //OFF

Pitot_HEAT.Value=0;

 

 

 

thank you for your interest.

 

Goksel

 

 

 

[Paul Henty]

Hi Goksel,

 

After you change the value you must call FSUIPCConnection.Process() in order to send the new values to FSUIPC.

 

Also, if you are only writing to offset 0x66C0 in your C# code then it's best to declare it as Write Only:

private Offset<int> Pitot_HEAT = new Offset<int>(0x66C0, true);

If you want to read and write in the C# code then you must make at least one read (call FSUIPCConnection.Process()) before setting a new value.

 

Paul

[Goksel Sunar]

I have a timer in the form and " FSUIPCConnection.Process();"  in the procedure.

I did as you said, but did not change the results.

Maybe you have other suggestions?

 

best regards.

 

Goksel

[Paul Henty]

You can check if the C# part is working by using the logging tab of FSUIPC. Use the panel on the right ("Specific Value Checks") to log 0x66C0 to the FS window.

 

You will be able to see if that offset is actually getting changed by your C# code. If it is then the problem is elsewhere, maybe your Lua code. You can check the FSUIPC4.Log file for any Lua errors.

 

Paul

[Goksel Sunar]

Hi,

 

I was able to write a working example code. But ,I am not sure is this the right way .

I create a while loop in the Lua code  . Because ,I could not find a way to continuous control of the offset value.

 

II think when the offset value is changed , automatically trigger control for it self.  am i wrong ?

 

Because , as the first example , I do what you say , and  open the log screen and I saw the offset value changing from csharp code but nothing happened in simulation.

 

 

 

If can  you   review  code  and write a comment , I would be hapy :)

 

 

 

Lua Code :

 

function PFuelCutOffSwitch(param)    

    n = ipc.readLvar('L:Eng1_FuelCutOffSwitch')

    if param == 1  and  n==0  then
       ipc.writeLvar('L:Eng1_FuelCutOffSwitch',1)
    end

    if param == 0  and  n==1  then
    ipc.writeLvar('L:Eng1_FuelCutOffSwitch',0)
    end
    
end
 

event.offset('0x66C0','UD', 'PFuelCutOffSwitch')

while 1 do

testVar = ipc.readUD(0x66C0)
if logic.And(testVar,1) == 1 then
PFuelCutOffSwitch(1)
end

if logic.And(testVar,1) == 0 then
PFuelCutOffSwitch(0)
end


end

 

 

csharp code

 

private Offset<int> Pitot_HEAT = new Offset<int>(0x66C0);

 

//ON

FSUIPCConnection.Process();
            Pitot_HEAT.Value=1;
 

//OFF

FSUIPCConnection.Process();
            Pitot_HEAT.Value=0;
 

[Paul Henty]

From what you've written the C# part of your program is working.

 

I don't know Lua, (it would be better to ask Pete) but according to the documentation, this line is wrong:

event.offset('0x66C0','UD', 'PFuelCutOffSwitch')

The two correct ways are:

event.offset(0x66C0,'UD', 'PFuelCutOffSwitch')

or

event.offset('66C0','UD', 'PFuelCutOffSwitch')

Paul

[Goksel Sunar]

Dear paul ,

now work :)

 

function PFuelCutOffSwitch()
  
   testVar = ipc.readUD(0x66C0)

n = ipc.readLvar('L:Eng1_FuelCutOffSwitch')
     

    if logic.And(testVar,1) == 1 then    
 
    if   n==0  then
       ipc.writeLvar('L:Eng1_FuelCutOffSwitch',1)
    end

        end
if logic.And(testVar,1) == 0 then
    if   n==1  then
    ipc.writeLvar('L:Eng1_FuelCutOffSwitch',0)
    end
 end

    
 end
 
event.offset('66C0','UD', 'PFuelCutOffSwitch')

 

Thank you a thousand times,

how many times I have read pdf files, but  I've missed.

 

I have one final question with your permission.

 

how can I define this offsets in .net . I did like the  lights example  but  did not again :)

 

lua code

 

event.offsetmask(0x66C0, 8,'UD', 'Fuel_Pump')
event.offsetmask(0x66C0, 256,'UD', 'Beacon_Light')
event.offsetmask(0x66C0, 1024,'UD', 'Strobe_Light')

 

c# code

 

private Offset<BitArray> Lights = new Offset<BitArray>(0x66C0,2);

 

// on

 

 FSUIPCConnection.Process();
            lights.Value[1] =true ; // I was   [0]...[8] I tried it a one to eight.

 

//off

 

FSUIPCConnection.Process();
            lights.Value[1] =false ; // I was   [0]...[8] I tried it a one to eight.

[Paul Henty]

I think the problem is that you've setup the event to read a double word ('UD') which is 4 bytes, but in the C# you're only writing 2 Bytes.

 

If you only need 2 bytes then the Lua should probably be:

event.offsetmask(0x66C0, 8,'UW', 'Fuel_Pump')event.offsetmask(0x66C0, 256,'UW', 'Beacon_Light')event.offsetmask(0x66C0, 1024,'UW', 'Strobe_Light')

'UW' is an unsigned word (2 bytes).

 

Paul