Passing params though functions called by HotKeySet

[webb34]

Hey I'm new to AutoIt and loving it thus far. I have been building a script to swap between audio devices, which is based off of one I found online. Unfortunately I ran into an issue where I want to pass a param depending on which hotkey calls a function.

here is what I have so far so you can see what I'm trying to to.

Dim $ConfigWindowTitle = "Sound"
HotKeySet("+^1", Swap(1)) ; Makes Shift+Ctrl+1 a hotkey that calls the swap function passing 1 as a variable
         ; This is for the headset
HotKeySet("+^2", Swap(2)) ; Makes Shift+Ctrl+2 a hotkey that calls the swap function passing 2 as a variable
         ; This is for the speaker system
HotKeySet("+^3", Swap(3)) ; Makes Shift+Ctrl+3 a hotkey that calls the swap function passing 3 as a variable
         ; This is for the Headphones
While 1 ; continuous lop to keep script active
Sleep(100) ; Sleeps for 100 miliseconds
WEnd ; Loop ends
Func Swap($whichDevice)
MsgBox(0,"Which device is selected", $whichDevice);
Run("control mmsys.cpl") ; Starts the sound control applet and hides it
WinWaitActive($ConfigWindowTitle) ; Wait for it to be active before sending keystrokes.
Send("{TAB}{TAB}{TAB}{TAB}") ; Puts the focus on the playback device list
For $i = 1 to $whichDevice Step 1
Send("{DOWN}")
Next
Send("!s") ; Sends Alt+S to set the selected device as the default
WinClose($ConfigWindowTitle) ; Closes the window
EndFunc

(I commented it for my sake :/ )

Any help is appreciated. Thanks in advance!

Edited October 7, 2012 by webb34

[czardas]

If you use global variables then you do not need to pass them as parameters to the function since they are readily available.An alternative is to trigger a series of functions using a global flag. It works like this: A hotkey sets the flag to TRUE. A conditional statement checks the flag within your main code. If the flag is TRUE then you call a function with local parameters. Set the global flag back to FALSE after you have finished.

Edited October 7, 2012 by czardas

[webb34]

I see what you are saying but, I am referring to specifically this line

HotKeySet("+^1", "Swap(1)") ;

or the other "HotKeySet " lines

I want the hotkey "Shift+Ctrl+1" to call the Swap function, passing it the number 2. I want to have one function that selects 1 of the 3 different playback devices I want, depending on which hotkey is used, and I would rather not have to go through a function that is serving as a middleman to set a global variable.

[JohnOne]

HotKeySet("+^1", "_test")
HotKeySet("+!1", "_test")




While 1
    Sleep(100)
WEnd




Func _test()
    If @HotKeyPressed = "+^1" Then
        MsgBox(0, "YAY!", "Shift, ctrl 1")
    Else
        MsgBox(0, "BOOO!", @HotKeyPressed)
    EndIf
EndFunc   ;==>_test

Edited October 7, 2012 by JohnOne

[webb34]

I love you if this works.

[webb34]

It worked. I love you

[czardas]

You can't directly set a hotkey to run a function with defined parameters. There are alternatives such as those I mentioned earlier. I thought it might be possible to incorporate some tricks using default parameters, but my attempts didn't work.

HotKeySet("^1", "_DefParam") ; This will never work.

Global $vDefault = False ; Declare the parameter.

_DefParam() ; This works! (kind of)

While 1
    Sleep(10)
WEnd

Func _DefParam($vDefault = "This works! (kind of)")
    MsgBox(0, "Default", "param = " & $vDefault)
EndFunc

The code is only intended to illustrate the behaviour of AutoIt. It is not a solution to a problem.

Edited October 7, 2012 by czardas