AutoHotkey Community

[daniel2]

Interesting. I noticed that the thread ID's are always 8 apart. I'm thinking that the 4 limit must be related to how AHK internally handles its own threads & maybe your trying to tap into something that is reserved...
New internal ahk threads do get spawned using dll method..(like hotkey/context menu.. etc) but using Loop the threads still seem to use the thread-queue as described in help

Thanks for the response!

[Chris]

I've no idea why it would be limited to 3 threads per script. However, AutoHotkey isn't designed to support multiple threads except in the case of the keyboard/mouse hook (which both share a second thread when they're active). Therefore, AutoHotkey isn't thread-safe, particularly when it comes to reading/writing variables. Therefore if the second thread does anything that interferes with something the main thread is doing (or vice versa), using multiple threads in a script might cause unexpected behavior or possibly even crashes.

It's also possible there could be other problems just from the mere existence of a second thread that is running parts of the script in parallel with the main thread. The program simply isn't designed to do that. An extensive code-review would be necessary if anyone wants to verify that it's safe.

AutoHotkey doesn't currently support multiple process-threads due to the need to make many sections thread-safe, which in turn would:
1) Increase code size.
2) Reduce performance in many areas due to the need to enforce thread-safety.
3) Be very costly in development time (probably 4-8 weeks of full-time work).

[SKAN]

Many thanks for the clarification Mr.Chris.

I guess my application exceptionally escapes the evil with a second parallel thread.
I will send you a copy of my code before I post it in S & F.

Thanks again

[corrupt]

It looks like some worarounds for quirks are possible (although they might not work in the next version ). For instance, Loop seems to work ok but specifying the number of times to Loop with the Loop command does not seem to work.

[corrupt]

Unfortunately, this trick does not work as well if you compile AutoHotkey using VC++ 2005 Express. It seems to break at the first If statement.
Edit: hmm, it seems to only run for a brief moment then break with most lines of code...

[viciouskinid]

is their a way to sent a variable to the thread like the path of the script %A_ScriptDir%

[engunneer]

you could maybe use Majkinetors IPC module for interprocess communication. you may be able to communicate between the threads that way.
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[RaptoR]

[Jero3n]

I know i'm a bit late, but how can I pass parameters when creating a thread?
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[Jero3n]

Nobody?
I really need to know this.
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