MsgBox Responses

[goss34]

Hi Guys,

This might be a bit of a basic question for you experts but here we go anyway. After looking all over google i havent come up with an answer yet.

I am trying to get a response from a MsgBox to perform the next task in an IF statement so i have this as my MsgBox code:

MsgBox(3, "Application Installed", $Found)

So this gives me some text and i am asked to press Yes / No or Cancel - at the moment whichever i press makes zero difference it just carries on processing whatever is next.

Below is a what i am after but i havent figured out how to intercept the button response:

$HRW = RegRead("HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{5525400A-82E2-48B6-AC66-689D7CF7DF39}", "UninstallString")
If $HRW = "MsiExec.exe /X{5525400A-82E2-48B6-AC66-689D7CF7DF39}" Then
    $installed = MsgBox(3, "Application Installed", $Found)
    If $installed = "Yes" Then
    Run("C:\Windows\System32\Notepad.exe")
    EndIf
Else
    MsgBox(0, "Application Not Installed", $NotFound)
EndIf

Im not sure i can use multiple IF statements inside another statement?

If anyone can point me in the right direction that would be appreciated (It may be i have to use something other than a MsgBox but so far i havent come up with anything).

Thanks

Dan

[water]

Assign the return value of MsgBox to a variable and then do your processing based on the buttons clicked.

$iResult = MsgBox(3, "Application Installed", $Found)
If $iResult = 1 ... ; Yes Button pressed
If $iResult = 2 ... ; No Button pressed
If $iResult = 3 ... ; Cancel Button pressed

MsgBox returns the ID of the pressed button.

[Melba23]

goss34,

No need for Google - if you look at the Help file page for MsgBox, you will see that it "Returns the ID of the button pressed". Just below that is the list of return values:

Button      Pressed Return Value 

OK          1 
CANCEL      2 
ABORT       3 
RETRY       4 
IGNORE      5 
YES         6 
NO          7 
TRY AGAIN   10 
CONTINUE    11

So you need to replace

If $installed = "Yes" Then

with

If $installed = 6 Then

Simple!

And you can nest as many If statements as you want - but be careful to close them all or you might not get the result you want.

M23

Edit:

water,

You might like to check on those return values!

Edited July 23, 2010 by Melba23

[ALTIN]

Simple!

Melba23 is always funny

[goss34]

Hi Again,

Thanks for the responses Melba that worked wonderful i now have it almost perfected :-)

One final question is that i was intending to use the "goto" command but it has been removed.

Im trying to check for a folder and if it exists i want to skip the next 2 lines which are a create and copy (these steps wouldnt be needed if the folder is already there).

DirCreate("C:\SoftwareInstallation\Application\Office")
DirCopy ("\\FileServer\Software\Licensed\Office", "C:\SoftwareInstallation\Application\Office" ,1)
RunAsWait - This line installs the application

I would like the statement above DirCreate to be something like:

If FileExists ("C:\SoftwareInstallation\Application\Office")
    Goto, RunInstall    
    DirCreate
    DirCopy
    :RunInstall
    EndIf
    RunAsWait

Hopefully you can see what im trying to achieve and point me in the right direction (I dont think the "while" command does what i need from what i have understood so far).

Thanks

[water]

water,

You might like to check on those return values!

As always you are right Edited July 26, 2010 by water

[Melba23]

goss34,

GOTO !?!?!?! Go and wash your mouth out at once!

You can do what you want very easily the "structured" way:

If Not FileExists ("C:\SoftwareInstallation\Application\Office") Then
    DirCreate
    DirCopy
EndIf
RunAsWait

M23

[goss34]

Thank you very much!

I have never used the If Not!! before, "user error"!

Thanks again... easy when you know how ;-)

Cheers

Dan

[Melba23]

goss34,

Be very careful using Not in AutoIt - unlike most other languages, Not is the highest priority operator here. This means that you can very easily not Not what you think you are Noting - if you see what I mean.

Other than very simple cases (such as the above) I ALWAYS I always put the expression I want to Not into parentheses.

Here is why:

Let us start with a simple If statement:

; Declare a variable
$var1 = 1

; Should be True
If $var1 = 1 Then
    MsgBox(0, "Easy", "True")
Else
    MsgBox(0, "Easy", "False")
EndIf

Well, that worked!

Now add a Not into the mix:

; Declare a variable
$var1 = 1

; Now use Not - surely this must be True as $var1 = 1 and therefore $var1 <> 3
If Not $var1 = 3 Then
    MsgBox(0, "Oops", "True")
Else
    MsgBox(0, "Oops", "False")
EndIf

That did not work as we expected, did it. The reason why is because Not has the highest priority, so the AutoIt evaluates the expression as

{ Not $var1 } = { 3 }

The Not only affects $var1 and not the whole expression.

Let us try again, but with parentheses:

; Declare a variable
$var1 = 1

; Now use Not with parentheses - will this be True?
If Not ($var1 = 3) Then
    MsgBox(0, "Aaah", "True")
Else
    MsgBox(0, "Aaah", "False")
EndIf

And we get what logic tells us we should!

All clear?

M23

[ShawnW]

Be very careful using Not in AutoIt - unlike most other languages, Not is the highest priority operator here.

In what languages is this not the case? I'm pretty sure Not is always higher than any logical comparison. It is a unary operation. Those come right after grouping operations such as (). After that come the multiplication, division, modulo, then the add, subtract. Then you get the bitwise ops, and FINALLY the comparison.

As a side note, autoit does do 1 thing I noticed that does not follow normal order of operations. Logical AND is supposed to come before Logical OR, autoit treats them as equal and processes whatever it gets to 1st.

[Melba23]

ShawnW,

In what languages is this not the case?

No idea! I was quoting a long-lost thread (or at least I cannot find it ) which discussed Not and someone much more experienced than I was at the time came out with that remark. I am a trusting soul, so I took it at face value.

Anyway, the basic advice is good - ALWAYS use parentheses with Not!

M23