Function intended to run once keeps looping

[Surma]

Hello.

I'm kinda new to autoit and this is probably some small mistake, but anyway.

I am making a script which is supposed to run a function once when a key is pressed. Something like this:

HotKeySet("g","_func")

Func _func ()
    ; Code
EndFunc

While 1
    Sleep(50)
WEnd

The problem is that when g is pressed, ; Code just keeps getting executed over and over again. I only want it to run once. How do I achieve this?

[bogQ]

The problem is that when g is pressed, ; Code just keeps getting executed over and over again. I only want it to run once. How do I achieve this?

fast way to do it is to block it untill the key is up

#include <Misc.au3>

HotKeySet("g","_func")

While 1
    Sleep(10)
WEnd

Func _func ()
    ; Code
    Do
        Sleep(10)
    Until Not _IsPressed("47");G
EndFunc

[Exit]

HotKeySet("g","_func")

Func _func ()
HotKeySet("g")  ; unset hotkey
    ; Code
HotKeySet("g","_func")   ; set hotkey again
EndFunc

While 1
    Sleep(50)
WEnd

[DrKovra]

Well, if you ONLY want to run it once, then this will do.

HotKeySet("g","_func")

Func _func ()
    ; Code
    Exit
EndFunc

While 1
    Sleep(50)
WEnd

Add the "Exit" command after your code

[Surma]

Well, if you ONLY want to run it once, then this will do.

HotKeySet("g","_func")

Func _func ()
    ; Code
    Exit
EndFunc

While 1
    Sleep(50)
WEnd

Add the "Exit" command after your code

Exit would cause the whole script to exit, wouldn't it? Or is it just the function that exists?

Anyway, I'm not sure that I completely understand why it behaves as it does. I'd really like to understand that and why your suggestions fixes it.

[Jos]

You haven't specified what code is in the _Func() that could cause this behaviour.

The posted code will work fine and only execute the Func one time when the HotKey is pressed.

Jos

[PsaltyDS]

@Surma: This typically happens because something you are doing in _Func() is sending a synthetic "g" keystroke, which fires the hotkey again in a loop. You didn't answer to forumer100's post above showing how to avoid that.

Edited July 13, 2011 by PsaltyDS

[Surma]

@Surma: This typically happens because something you are doing in _Func() is sending a synthetic "g" keystroke, which fires the hotkey again in a loop. You didn't answer to forumer100's post above showing how to avoid that.

Sorry, must've scrolled past him.

Uh, yes indeed I am using send, among other things, in the function. I feel stupid...

Thank you all a million, you've made my day