AutoHotkey Community

[Lexikos]

How to: Run Dynamic Script... Through a Pipe!
Dynamic scripting has various uses. Examples include:

• ACConsole is like a command prompt window where you can type or paste in commands to execute.
  
• expression and variable? - In this thread are examples of executing dynamic code/expressions by running a temporary script file. Throughout the thread are various methods of returning the result from the temporary script, back to the "master" script.
  
• Execute AHK code dynamically! dynamically executes any given command.

If, for whatever reason, you want to avoid writing a temporary script file to disk, a named pipe can be used as a "file."

There were a couple of obstacles making it difficult to pipe a script to AutoHotkey; the comments in the script explain what they are and the solutions.

Type a line of code in the InputBox, and the script will "execute" it. (The InputBox is the only reason it is limited to one line.)

[rickly]

This will have many useful functions, but I noticed that you have
implemented it using 'named pipes' which are not available on win9x
systems. Is there any chance that it can be done using 'plain' pipes (as
used in corrupt's cmdret_ahk functions). I tried a few stabs at modifying
your code to use 'createpipe', and about the only success I had was that
I did not CRASH the system.

This stuff is way over my head, but if you can modify it to work on win9x
systems, it would be greatly appreciated.

[majkinetor]

Thx lexikos.

This is great
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[Laszlo]

Cool! Thanks, Lexikos, for sharing it!

Here is a three-line GUI for your pipes, to help experimenting. Alt-Win-Z pops up the GUI. I included it in my master script, for quick script testing or calculations.

[Lexikos]

[SKAN]

Many thanks lexikos

[Lexikos]

Like many other applications, IniRead closes the pipe before the script writes to it. I guess it uses GetFileSize(), and thinks the pipe is "empty." (A_LastError is ERROR_NO_DATA=232 after WriteFile; meaning "The pipe is being closed.")

String parsing would likely be more efficient (given that you only need to open and traverse the file once), but I don't see what it has to do with pipes...

[SKAN]

[DerRaphael]

this is awesome

now with this, you can nearly truly embed virtually any ahk script (exept those, who write themselves )

This is a pretty cool way to create Dynamic abbrevations without using any files to rewrite and reopen and re.. blah

Sending it to a salten md5hashnamedpipe and executed 'em there
it works

Thank you very much
DerRaphael

TheAHKpad - written in AHK for AHK
http://www.autohotkey.com/forum/viewtopic.php?p=161815#161815

[DerRaphael]

By The way ...

would it be possible using a pipe to load an icon from previously converted to hex with the all-mighty read/writebin funktion?

and if so, how can this made usable?

would be nice when this'd work with Menu, Tray, Icon \path\to\pipe

theoretically:
1st load into skript via bin read,
2nd save in skript as viable
3rd write back from var to pipe
4th *do some magic whoop-a-whoop*
5th load the icon via menu, tray, icon OR DllCall(LoadImage,pipe)

step 5 - both possibilities 'd be nice

Gui, Add, Picture would be nice to

this 'd enable true icon embedding for ahk scripts



DerRaphael

postScriptum: I tried rather stupid modifying the initial postet script, but it endet up in showing the standard icon a loooooooooooooooooong time and doin' nothin' (seemed to hang somewhere)

[Titan]

Haven't tried it out but it looks great! Thanks for the information and examples.
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RegExReplace("irc.freenode.net/autohotkey", "^(?=(.(?=[\0-r\[]*((?<=\.).))))(?:[c-\x73]{2,8}(\S))+((2)|\b[^\2-]){2}\D++$", "$u3$1$3$4$2")

[Lexikos]

Loading a file through a pipe in the same script is generally difficult, if possible, since you have to read and write at the same time. It might be possible to start an asynchronous (aka overlapped) write with the win32 WriteFile function. Then again, it might fail since the pipe won't have opened yet.

Regardless, Menu,Tray,Icon (and the GUI commands I've tried) won't work with pipes. (I tried piping from a separate script.)

Menu & Gui use LoadImage(), so that probably won't work either.

[DerRaphael]

regardless of pipe and here offtopic, is there any other way, when i have the binary image data assigned as hex in a var to put that into memory and make loadImage believe it came from file?

[Lexikos]

[khan]

I can't run a posted script because script have unicode characters.
so, I changed a little.