How can I create a variable in one lua program and evaluate it in another lua program.

[rozelc]

 

 

I have lua program that sets a variable to 1.  VarOut.lua.

 

In the attached FSUIPC.log shows “18156 LUA.3: Global: Var1 = 1”.

I have another lua program that I hoped would read and evaluate Var1 = 1. VarIn.lua

Var1 is however only evaluated as == nil

Usually when I have problems like this it’s typo error of syntactical error.

 Thanks for looking

Rozel

VarIn.lua VarOut.lua FSUIPC7.log

[John Dowson]

Each lua runs in its own thread and the variables are only global to the thread. To share a variable between luas, use the ipc.set and ipc.get functions - see the FSUIPC Lua Library document.

John

 

[rozelc]

Hi John,

The VarOut.lua I attached does as I expected but the VarIn.lua doesn't seem to get a nul only. Would you take a look at the VarIn.lua and see if  you see my error.

Rozel

VarIn.lua

[Pete Dowson]

3 hours ago, rozelc said:

The VarOut.lua I attached does as I expected but the VarIn.lua doesn't seem to get a nul only.

But the ipc.set in your VarOut.lua doesn't set anything:

ipc.set("Var1")

The syntax as documented is 

ipc.set(“name”, value)

You are setting no value, same as nul.

Pete

 

[rozelc]

Problem solved.

Thank you gentlemen. 

Rozel

[rozelc]

Just a quick follow up on my original post.

Using a modification or the TripleUse.lua that senses the push button of a rotary switch and a couple of other lua programs that sense CW or CCW of that rotary switch I can control the range of the mfd map, range of the pfd map and the barometric setting, in the G1000 nxi.

Thank you so much for your help

Rozel

RngBaroDEC.lua PB_RotaryRange.lua INITIALIZE_VARS.lua FSUIPC7.ini RngBaroINC.lua

[John Dowson]

@rozelcThats great, thanks. Maybe you could create a topic in the User Contributions section, and attach the files there. I am sure they would be useful to many people.

Thanks,

John

PS. If not, no problem - I'll move them there myself, when I get a chance....