Can't call userdefined function with Hotkeyset

[LittleHuba]

Hey

I'm writing a script to start other progs with hotkeys.

for my script I need to set a hotkey for a function. Thats no big problem.

HotkeySet( "{F10}", "Hotkeyexecute")

Its like this code. But for my script I need to send a variable to the function. This variable depends to the pressed key.

I tested this code:

HotkeySet( $hotkey, "Hotkeyexecute($arraynumber)")

And this one:

HotkeySet( $hotkey, "Hotkeyexecute("&$arraynumber&")")

But when I start the script and press the comination, set in $hotkey nothing happens.

It only works with this code:

HotkeySet( $hotkey, "Hotkeyexecute")

There isn't a error set or something else.

Please help me.

[jvanegmond]

HotKeySet second parameter only takes a reference to a function name, which is used to find the function to call. You can not pass an entire line of script to the function. Furthermore, HotKeySet can only call functions that don't need any parameters, either because the function has no parameters or all the parameters have default values and are therefore optional.

Your problem however is a valid one and it needs to be solved in some way. AutoIt has chosen to do this by offering a @HotKeyPressed macro which can be used inside a function that handles a hotkey press. An example of this is:

For $i = 1 To 12
    HotKeySet("{F" & $i & "}", "MyHotkeyHandler")
Next

While 1
    Sleep(500)
WEnd

Func MyHotkeyHandler()
    $key = @HotKeyPressed
    MsgBox(0, "", "You pressed: " & $key)
EndFunc

Alternatively, you can define functions for each key. An example again:

For $i = 1 To 12
    HotKeySet("{F" & $i & "}", "HandlerForF" & $i)
Next

While 1
    Sleep(500)
WEnd

Func HandlerForF1()
EndFunc

Func HandlerForF2()
EndFunc

This last approach also fits with the approach that AutoIt takes, but yet it is not fully supported. For example, binding a HotKey to a non-existant function is not detected by Au3Check and it will not cause the script to hard-crash. Even though there is no way for the script to ever resolve that function during the course of the program (all functions must be known at compile-time, but functions via HotKey are bound at runtime). This is inconvenient for the programmer because it leads to (almost) silent errors, which truth be told, no one ever checks. Therefore, I recommend that you use the first option with @HotKeyPressed.

Edited March 7, 2011 by Manadar

[LittleHuba]

Hey

thanks for the help!!!

The first solution was the best one. I had to rewrite the whole script, but now it works.

AutoIt should change something in this function.

LittleHuba

[Melba23]

LittleHuba,

AutoIt should change something in this function

Are you volunteering to write the code?

M23

[martin]

LittleHuba,

Are you volunteering to write the code?

M23

Well there is no need because I did it some time ago .

The UDF is in my signature and it can be used for passing parameters to functions for HotKeySet, GuiCtrlSetOnEvent and GuiSetOnEvent.

[Melba23]

martin,

Well, in truth I did I not really think the OP ever would, so it is just as well that you have!

I forgot your UDF dealt with HotKeys - I only ever use it for functions.

M23