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nikosliapis

Question on "Global" variable

8 posts in this topic

I have a project going which has a number of functions, i want to know if it is possible to set a variable to be "global like" so that it can be manipulated be two of those functions and only those two.

The search i've made so far shows that it is not possible, but i need to confirm this assumption.

Thanks in advance.


Coding can be fun when you do it your own.

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It should be easy to have only those 2 functions able to change a variable, don't use that variable in any other functions or just don't have anywhere in the other functions that manipulate the contents of that variable.


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It should be easy to have only those 2 functions able to change a variable, don't use that variable in any other functions or just don't have anywhere in the other functions that manipulate the contents of that variable.

Should i make that variable Global or is there another type of variable i can use?

Coding can be fun when you do it your own.

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nikosliapis,

AutoIt variable scopes are "Global = Everywhere", "Local = just this function" - there is no inbetween.

But as I mentioned in your last "scope" thread, you can limit the scope of variables by passing them as parameters and using ByRef - use an array to hold them if you have lots to pass. :)

Perhaps if you offered an example of what you are trying to do....;)

M23


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ArrayMultiColSort ---- Sort arrays on multiple columns
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Date_Time_Convert -- Easily convert date/time formats, including the language used
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NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
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Melba23

What i want to do is to dicrease the lines of code.

If i try to pass the variables from one function to another then i'll propably end up with even more lines.

I don't know why, but i believe that declaring a large number of Global variables is a bad think, so i try to find a way to avoid it.


Coding can be fun when you do it your own.

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nikosliapis,

What i want to do is to dicrease the lines of code.

If i try to pass the variables from one function to another then i'll propably end up with even more lines.

What you should want to do is make your code better, not shorter. :D

Declaring many Global variables is generally considered a "bad thing" because it creates lazy code where you access the same variable from all over your script. Unless you take great care you will soon find that what you think is in that variable is not because you have changed it somewhere along the way, probably without meaning to. :)

If you really want to use "private variables" then use what AutoIt gives you to make this possible: passing by parameter and ByRef. The first allows you to tell another function the current value of a Local variable - the second allows the other function to change this variable directly.

So stop worrying about the number of lines (using #region and #endregion will help you reduce the visible script size in SciTE) and start utilising AutoIt's existing functions to get your code working as you want. ;)

M23

P.S. You might want to read through this thread, particularly Valik's posts - the deleted posts did not add a lot as I remember. :D


Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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thank you all very much for the advices


Coding can be fun when you do it your own.

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