Can't Get += to work properly...

[rm4453]

I keep getting error : Statement cannot be just an expression.

Here are the 3 error variations it gives:

Global $ImageCount += 1

~~~~~~~~~~~~~~~~~~~~~^

Global $ImageCount += 1

~~~~~~~~~~~~~~~~~~~~^

Global $ImageCount +=

~~~~~~~~~~~~~~~~~~~^

Here is the code:

expandcollapse popup

Case $Image1
            ;GUICtrlSetState($Image1, 4+128)
            GUICtrlSetState($Image2, 64)
            $Image1_done = 1
            OpenImages()
            Global $Image1_added = $imagePath
            ;MsgBox("Info", "Image 1 Path", $Image1_added)
            OpenEditBox()
            Global $Image1_Description = $editBox_save
            If $im1 = 0 Then
                Global $ImageCount += 1
                $im1 = 1
            EndIf
        Case $Image2
            If $Image1_done = 1 Then
                ;GUICtrlSetState($Image2, 4+128)
                GUICtrlSetState($Image3, 64)
                OpenImages()
                Global $Image2_added = $imagePath
                ;MsgBox("Info", "Image 2 Path", $Image2_added)
                OpenEditBox()
                Global $Image2_Description = $editBox_save
                $Image2_done = 1
                If $im2 = 0 Then
                    Global $ImageCount += 1
                    $im2 = 1
                EndIf
            Else
            EndIf
        Case $Image3
            If $Image2_done = 1 Then
                ;GUICtrlSetState($Image3, 4+128)
                GUICtrlSetState($Image4, 64)
                OpenImages()
                Global $Image3_added = $imagePath
                ;MsgBox("Info", "Image 3 Path", $Image3_added)
                OpenEditBox()
                Global $Image3_Description = $editBox_save
                $Image3_done = 1
                If $im3 = 0 Then
                    Global $ImageCount += 1
                    $im3 = 1
                EndIf
            Else
            EndIf
        Case $Image4
            If $Image3_done = 1 Then
                ;GUICtrlSetState($Image4, 4+128)
                GUICtrlSetState($Image5, 64)
                OpenImages()
                Global $Image4_added = $imagePath
                ;MsgBox("Info", "Image 4 Path", $Image4_added)
                OpenEditBox()
                Global $Image4_Description = $editBox_save
                $Image4_done = 1
                If $im4 = 0 Then
                    Global $ImageCount += 1
                    $im4 = 1
                EndIf
            Else
            EndIf
        Case $Image5
            If $Image4_done = 1 Then
                ;GUICtrlSetState($Image5, 4+128)
                GUICtrlSetState($Image6, 64)
                OpenImages()
                Global $Image5_added = $imagePath
                ;MsgBox("Info", "Image 5 Path", $Image5_added)
                OpenEditBox()
                Global $Image5_Description = $editBox_save
                $Image5_done = 1
                If $im5 = 0 Then
                    Global $ImageCount += 1
                    $im5 = 1
                EndIf
            Else
            EndIf
        Case $Image6
            If $Image1_done = 1 Then
                ;GUICtrlSetState($Image6, 4+128)
                OpenImages()
                Global $Image6_added = $imagePath
                ;MsgBox("Info", "Image 6 Path", $Image6_added)
                OpenEditBox()
                Global $Image6_Description = $editBox_save
                If $im6 = 0 Then
                    Global $ImageCount += 1
                    $im6 = 1
                EndIf
            Else
            EndIf

 

[alien4u]

You can't increment a value on a variable that not exists yet.

$ImagenCount +=1 Mean that you are adding 1 to the previous value of $ImageCount, where is the previous value if you don't declare the variable before that operation?

You can initiate a variable like this:
$ImageCount = "" ; Initiate the variable with null value(empty).

Happy Coding...

Kind Regards
Alien.

 

 

[rm4453]

2 minutes ago, alien4u said:

You can't increment a value on a variable that not exists yet.

$ImagenCount +=1 Mean that you are adding 1 to the previous value of $ImageCount, where is the previous value if you don't declare the variable before that operation?

You can initiate a variable like this:
$ImageCount = "" ; Initiate the variable with null value(empty).

Happy Coding...

Kind Regards
Alien.

 

 

It is already declared sorry forgot to mention that...

It is declared as 0 at script startup Then is set to a value based off of ini it will never be bigger than 6 so I don't see how this is a problem...

[water]

What do you expect $ImageCount to be after the statement? 1? Then use:

Global $ImageCount = 1

 

[BrewManNH]

You're redeclaring it with the Global statement, so the above answer still stands.

[water]

Then simply remove "Global" to increment the variable:

$ImageCount += 1

 

[rm4453]

Just now, water said:

What do you expect $ImageCount to be after the statement? 1? Then use:

Global $ImageCount = 1

 

I expect $ImageCount to be anywhere in this range 1-6 "the script sets it to 6 if it is 6 or greater before it starts the Image upload that way it will loop no more than 6 times.... because the user is only able to select 6 images to upload"

[rm4453]

I don't fully understand what += 1 does i'm wanting it to increment the variable by 1 i don't care if it goes above 6 because the upload function sets it to 6 if it is 6 or greater that way it only loops 6 times...

 

This page specifies that this should work just fine....

https://www.autoitscript.com/autoit3/docs/intro/lang_operators.htm

Edited March 21, 2016 by rm4453
added link to extra info

[water]

+=1 does exactly what you want: "i'm wanting it to increment the variable by 1"

[rm4453]

Just now, water said:

+=1 does exactly what you want: "i'm wanting it to increment the variable by 1"

Then why does it keep throwing the error? is it just a bug or something?

[alien4u]

As I already said: +=1 mean you will add 1 to the previous value of the variable.

If you have Global $ImageCount = "" (declaration of your variable) early in your code, then like BrewManNH said, you can't use Global $ImageCount +=1 again because with the Global statement your redeclaring your variable again but you can't do that using += because that is not the way you declare a variable, does not make any sense.

In the other hand I think the best way to do this is creating a function and send values to that function, so you can use an While loop when you finish your cases that will be better to count and no depend on Global variables.

Kind Regards
Alien.

[rm4453]

2 minutes ago, alien4u said:

As I already said: +=1 mean you will add 1 to the previous value of the variable.

If you have Global $ImageCount = "" (declaration of your variable) early in your code, then like BrewManNH said, you can't use Global $ImageCount +=1 again because with the Global statement your redeclaring your variable again but you can't do that using += because that is not the way you declare a variable, does not make any sense.

In the other hand I think the best way to do this is creating a function and send values to that function, so you can use an While loop when you finish your cases that will be better to count and no depend on Global variables.

Kind Regards
Alien.

So If I take Global off it should be fine?

Using the later of the two? ex:

Global $ImageCount += 1

$ImageCount +=1

[alien4u]

1 hour ago, rm4453 said:

I expect $ImageCount to be anywhere in this range 1-6 "the script sets it to 6 if it is 6 or greater before it starts the Image upload that way it will loop no more than 6 times.... because the user is only able to select 6 images to upload"

If you set the value of $ImageCount to 6 when you first declare it and you increment that by 1 how to do expect to the script will work if your final condition or your loop stop at 6?
Or Im missing something here?

Kind Regards
Alien.

[rm4453]

Just now, alien4u said:

If you set the value of $ImageCount to 6 when you first declare it and you increment that by 1 how to do expect to the script will work if your final condition or your loop stop at 6?
Or Im missing something here?

Kind Regards
Alien.

 

I saw that error and modified the Do loop to include an extra if statement here it is:

 

If $ImageCount >= 6 Then
    $ImageCount = 6
EndIf

 

[alien4u]

Yes it should.

Outside your case or loop or anything that is repetitive you declare your Global var:
Global $ImageCount = ""

And inside the Case, or Loop or repetitive task you increment your var:
$ImageCount +=1

Kind Regards
Alien.