AutoHotkey Community

I'm not sure if this script warrants posting anywhere, but it's useful for me, so maybe it'll be of use to someone else.

The idea is just to have a quick way to review notes, for example, I recently adopted one of the mouse gesture scripts, so I want to be able to see the gestures flash up on my screen with a press of a button.

Hotkey: ~Esc - pressed down for 0.6 sec, does not prevent it's other uses. After 0.6s it activates the accent (`) key to flip though notes. Releasing Esc deactivates the script.

Note: I chose the accent (`) key because it's right under Esc on my keyboard. I also used its SC value, which may vary from computer to computer, so anyone using this should just change it to whatever is convenient for them.

Requires a "QuickNotes" folder in script's directory (default) with notes (.txt files, etc.) in it to display quickly:

update: uses F1 now instead of ``



Question 1: Is there a command or an easy way to clear all variables at the end of a script?

Question 2: I wanted to use F1 as the temporary hotkey instead of accent (`), but help windows from other apps kept popping up. I couldn't figure out how to temporarily (while Esc down) block F1 output outside of the script?

To add: Change accent (`) hotkey to F1 (more ergonomic), and extend quick notes to jpgs (i'm think SplashScreens to display image notes e.g. screenshots in jpg...).

edit: added SendMode, Input and On after first Hotkey command.

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Hardware: 1.8 GHz laptop with 4 GB ram, Windows XP/SP3
Software: Prevx, Privatefirewall, KeyScrambler.

Answer 1: If you want the variables cleared between each press of the hotkey, I suggest moving the code into a function and using local variables. Otherwise, I'm not sure what you mean.

Answer 2: Using "F1" in place of "sc029" should be sufficient. If the hotkey fires but a help window still comes up, I'm not sure what could be the problem. If your keyboard has a function-lock feature (F-lock key), perhaps that is interfering. Logitech SetPoint and Microsoft IntelliType (used to control keyboard features like F-lock) can also cause complications.


Btw, 'U' is not a valid option for KeyWait - "wait for key-up" behaviour is implied by the absence of 'D':

Also, `` (double back-quote) will work in place of sc029:
Backquote is AutoHotkey's (default) escape character, so in this context `` means one literal `. Although the scancode of backquote may vary on different keyboard layouts, so would the key's physical location and suitability as a hotkey. I'd use `` merely because it saves having to explain sc029 in the comments.

Thanks for the response. I removed the U from KeyWait and replaced ` (sc029) with F1. It seems to work now without triggering its other functions.



I mean in general (not just for this script). The help file for FileRead says this:



So as a rule of thumb I try to clear all the variables at end of my persistent scripts to free the memory, but also to eliminate the type of interference that leftover values sometimes cause on later executions of the hotkey. However, I don't like writing var1= , var2= , var3= , ... so I'm asking if there's a 'ClearAll'-type command in AHK, or what AHK users use in place of it?

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Hardware: 1.8 GHz laptop with 4 GB ram, Windows XP/SP3
Software: Prevx, Privatefirewall, KeyScrambler.

AFAIK there is no such command, you can not
even check if a var is exist without "creating" one (I hope I describe
that correctly, I saw a post in the help recently).
Useful perhaps: VarExist()
http://www.autohotkey.com/forum/viewtop ... 3371#83371

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AHK FAQ
TF : Text files & strings lib, TF Forum

Functions can be used in general...
All local variables are freed automatically when the function returns/completes.