how to check if native calls are enabled?

Mlapse

584
S95 S110

« on: 15 / March / 2022, 07:41:57 »

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I was trying to check if native calls are enabled.

so tried: (with native calls enabled in CHDK)
get_config_value(require'GEN/cnf_core'.script_allow_lua_native_calls) == true
but it stated: expected number got nil

so i thought, maybe i'm wrong and tried
get_config_value(999) == true
but that appeared to be false too

isn't this available for readout?

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Caefix

947
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Re: how to check if native calls are enabled?

« Reply #1 on: 15 / March / 2022, 11:51:55 »

... Written in Romlog.Lua:

Code: [Select]

if (type(call_event_proc) ~= "function") then
    error("ERROR: your CHDK does not support native function calls")
end

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Mlapse

584
S95 S110

Re: how to check if native calls are enabled?

« Reply #2 on: 15 / March / 2022, 12:01:48 »

haven't tested that, because i thought this was only to see if your CHDK version supports native calls. and i'm looking for if it is set (active) or not

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Caefix

947
Sorry, busy deleting test shots...

Re: how to check if native calls are enabled?

« Reply #3 on: 15 / March / 2022, 12:12:55 »

Quote from: Mlapse on 15 / March / 2022, 12:01:48

... and i'm looking for if it is set (active) or not

All my CHDKs are compiled with FORCE_LUA_CALL_NATIVE.

I can´t switch it off for testing, because then there´s no switch in the menu...

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reyalp

14118

Re: how to check if native calls are enabled?

« Reply #4 on: 15 / March / 2022, 13:44:29 »

Quote from: Caefix on 15 / March / 2022, 11:51:55

... Written in Romlog.Lua:
Code: [Select]
if (type(call_event_proc) ~= "function") then error("ERROR: your CHDK does not support native function calls") end

This is an old method that doesn't work on modern CHDK. For that script, it doesn't matter, because attempting to use a native call will generate a similar error.

You should be able to use

Code: [Select]

if get_config_value(1999) == 1

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584
S95 S110

Re: how to check if native calls are enabled?

« Reply #5 on: 15 / March / 2022, 13:56:01 »

Quote from: reyalp on 15 / March / 2022, 13:44:29

You should be able to use
Code: [Select]
if get_config_value(1999) == 1

although i cannot find 1999 back in the conf.c file it seems to work, so it's a keeper.

looking at another value without testing i have usb enable: set_config_value(121, 1) but if i look at config.c i could not find usb enable.
so i thought it should be set_config_value(200,1) -- remote enable
so the numbers in config.c are not usable in a script?

« Last Edit: 15 / March / 2022, 14:23:14 by Mlapse »

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reyalp

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Re: how to check if native calls are enabled?

« Reply #6 on: 15 / March / 2022, 14:19:45 »

Quote from: Mlapse on 15 / March / 2022, 13:56:01

although i cannot find 1999 back in the conf.c file it seems to work, so it's a keeper.

The different conf files (core, osd etc) IDs are identified by offsets defined in conf.c

Code: [Select]

// ID offsets for ConfInfo mapping from Lua libraries
#define CONF_CORE   1000
#define CONF_OSD    2000
#define CONF_USER   3000
#define CONF_GPS    4000

ids lower than 1000 are mapped to be backward compatible with the ids used before the conf files were split, but that doesn't include the native calls option.

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584
S95 S110

Re: how to check if native calls are enabled?

« Reply #7 on: 15 / March / 2022, 14:35:04 »

Quote from: reyalp on 15 / March / 2022, 14:19:45

ids lower than 1000 are mapped to be backward compatible with the ids used before the conf files were split, but that doesn't include the native calls option.

ah, so for usb enable i should use

Code: [Select]

set_config_value(1200,1)

as listed in cnf_core.lua

« Last Edit: 15 / March / 2022, 14:38:49 by Mlapse »

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reyalp

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Re: how to check if native calls are enabled?

« Reply #8 on: 16 / March / 2022, 00:49:41 »

Quote from: Mlapse on 15 / March / 2022, 14:35:04

Code: [Select]
set_config_value(1200,1)as listed in cnf_core.lua

You can, but the cnf_* values are there so you can use them by name, which tends to be more readable, like

Code: [Select]

cnf_core = require'gen/cnf_core'
set_config_value(cnf_core.remote_enable,1)

(except the native calls one which isn't included for obscure reasons

)

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584
S95 S110

Re: how to check if native calls are enabled?

« Reply #9 on: 16 / March / 2022, 03:02:59 »

Quote from: reyalp on 16 / March / 2022, 00:49:41

(except the native calls one which isn't included for obscure reasons )

i read something about it from an early post (2008?) that i can't trace back.
it has a warning if you enable it and was considered a risk if you could set it from script.
why it isn't listed for reading though is just as much a guess for me.

and i'll change to the more readable code for other items

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