Autoit and Elgato Stream Deck

[nicolasd]

Hello All,

I'm not new on Autoit, used to script a lot on it

Now i'm stuck with a crazy idea : Be able to catch which button is pressed (and also released) on an Elgato Stream Deck so i can make various actions directly from Autoit. It works as a HID device.

I already make search over your forum and google and found some old topics (2008) talking about how to read input from HID devices.

Unfortunately, the only thing I was able to do is knowing that i press and release a button but no clue at all which one is it.

Based on various example scripts / topics / internet gossips, I was able to write this :

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WinAPISys.au3>
#include <WindowsConstants.au3>

Opt('TrayAutoPause', 0)

Global $g_hForm = GUICreate('Test ' & StringReplace(@ScriptName, '.au3', '()'), 160, 212, @DesktopWidth - 179, @DesktopHeight - 283, BitOR($WS_CAPTION, $WS_POPUP, $WS_SYSMENU), $WS_EX_TOPMOST)

Global $tRID = DllStructCreate($tagRAWINPUTDEVICE)
DllStructSetData($tRID, 'Flags', $RIDEV_INPUTSINK)
DllStructSetData($tRID, 'VendorId', 0x0FD9)
DllStructSetData($tRID, 'ProductId', 0x0090)
DllStructSetData($tRID, 'UsagePage', 0x0C)
DllStructSetData($tRID, 'Usage', 0x01)
DllStructSetData($tRID, 'hTarget', $g_hForm)

; Register HID input to obtain row input from mice
_WinAPI_RegisterRawInputDevices($tRID)

; Register WM_INPUT message
GUIRegisterMsg($WM_INPUT, 'WM_INPUT')

Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE

Func WM_INPUT($hWnd, $iMsg, $wParam, $lParam)
    #forceref $iMsg, $wParam

    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> START" & @CRLF)
;~  ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $iMsg=" & $iMsg & @CRLF)
    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $wParam=" & $wParam & @CRLF)
    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $lParam=" & $lParam & @CRLF)
;~  ;ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $tagRAWINPUTHID=" & $tagRAWINPUTHID & @CRLF)


    Local $tRIM = DllStructCreate($tagRAWINPUTHID & 'byte RawData[n]; byte Mask;')
    local $test_header = _WinAPI_GetRawInputData($lParam, $tRIM, DllStructGetSize($tRIM), $RID_HEADER)
    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $test_header=" & $test_header & @CRLF)

    local $test_input = _WinAPI_GetRawInputData($lParam, $tRIM, DllStructGetSize($tRIM), $RID_INPUT)
    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $test_input=" & $test_input & @CRLF)

;~  Local $iFlags = DllStructGetData($tRIM, 'Flags')
;~  ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $iFlags=" & $iFlags & @CRLF)

;~  Local $ButtonFlags = DllStructGetData($tRIM, 'ButtonFlags')
;~  ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $ButtonFlags=" & $ButtonFlags & @CRLF)

;~  Local $ButtonData = DllStructGetData($tRIM, 'ButtonData')
;~  ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $ButtonData=" & $ButtonData & @CRLF)

    Local $Mask = DllStructGetData($tRIM, 'Mask')
    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> $Mask=" & $Mask & @CRLF)

;~  ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >>" & @CRLF)

    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> _WinAPI_DefRawInputProc($lParam, $tRIM)= " & _WinAPI_DefRawInputProc($lParam, $tRIM) & @CRLF)

    ConsoleWrite(@YEAR & "/" & @MON & "/" & @MDAY & " " & @HOUR & ":" & @MIN & ":" & @SEC & " [" & @AutoItPID & "] >> STOP" & @CRLF & @CRLF)

    Return $GUI_RUNDEFMSG
EndFunc   ;==>WM_INPUT

But the only thing I got is 

Quote

2023/06/27 11:58:52 [26788] >> START
2023/06/27 11:58:52 [26788] >> $wParam=0x00000001
2023/06/27 11:58:52 [26788] >> $lParam=0x3E201AF5
2023/06/27 11:58:52 [26788] >> $test_header=16
2023/06/27 11:58:52 [26788] >> $test_input=536
2023/06/27 11:58:52 [26788] >> $Mask=0
2023/06/27 11:58:52 [26788] >> _WinAPI_DefRawInputProc($lParam, $tRIM)= 1
2023/06/27 11:58:52 [26788] >> STOP

When i press or release one of the 6 button on the devices. The $lParam is the only thing changes but it is not the same every time, so i cannot know if i press or release the button nor knowing which button is it.

Is there someone here who can help me on this ?

Really appreciate it

Kind regards,