(HID) Human Interface Device Communications in XP

[jchd]

Unfortunately it does get called on input. I use the rawinput.au3 you posted and updated several time near the head of the thread. This is a very simple PNP scanner so I would expect nothing special for its interface.

I don't want to abuse your time but do you have an idea what I should look or try now?

[Authenticity]

It's ok, you're not consuming my time because it's not precious, I'll buy me a new life soon.

Anyway, this HID is some sort of keyboard because if it's not a keyboard you don't need to differentiate it from the keyboard. In other words, if you'll use a keyboard hook procedure, is the handler get called from both the keyboard and the barcode scanner?

[jchd]

It's ok, you're not consuming my time because it's not precious, I'll buy me a new life soon.

Anyway, this HID is some sort of keyboard because if it's not a keyboard you don't need to differentiate it from the keyboard. In other words, if you'll use a keyboard hook procedure, is the handler get called from both the keyboard and the barcode scanner?

You're right, it behaves like a PC keyboard.

Here's the complete list for this system. The barcode reader is confirmed to be the first entry.

What surprises me is that there are two other entries with "Page 12, Usage 1". The handler doesn't get it either when I use the keyboard. Any (kb or barcode reader) input goes messing source in Scite instead of being trapped. In your opinion which other entry should I try? Or is there more accessible information in the registry?

[Authenticity]

Try one of the HID UsagePage and Usage values, or in my opinion, you can try the UsagePage and Usage of keyboards which is UsagePage: 1 and Usage: 6. If the handler will be called then you're on the right track, just find a unique way to differentiate it from the normal keyboard. You can use _GetRawInputDeviceInfo() to retrieve additional information about the device while handling it's event. If you're going to use the keyboard way, change the handler body appropriately, see Kenny's code.

[jchd]

Try one of the HID UsagePage and Usage values, or in my opinion, you can try the UsagePage and Usage of keyboards which is UsagePage: 1 and Usage: 6. If the handler will be called then you're on the right track, just find a unique way to differentiate it from the normal keyboard. You can use _GetRawInputDeviceInfo() to retrieve additional information about the device while handling it's event. If you're going to use the keyboard way, change the handler body appropriately, see Kenny's code.

OK, I'll try that it should be doable this way. I'll post the result here for future reference.

Couldn't resist and tried it at once. It actually works that way, by intercepting standard keyboard (UsagePage: 1 and Usage: 6) activity. Of course, it's then easy to sort out which is which, thanks to the hDevice field.

Warm thanks for your help, you can pretend to the rare title of "AutoIt King of the Barcode Reader and other HID Peripherals without having any".

Edited May 28, 2009 by jchd

[ken82m]

Have another challenge for you lol

http://www.autoitscript.com/forum/index.php?showtopic=97184

Thanks,

Kenny

[ken82m]

Alright for my little mouse tracking project.

So I had device list scripts, and monitoring scripts. But I'm getting completely confused trying to combine them.

I want to add a configure option. For example they click configure mouse 1 and then they move mouse 1 or hit a button on mouse 1 something like that.

And then I record the ID and/or name, then the same for mouse 2.

Now I can monitor both devices and react to each individual mouse.

Here's the modified script that collects the device info I need from all mice.

expandcollapse popup

#include <Array.au3>
#include <HIDRawInput.au3>

Dim $tRIDL, $pRIDL, $iRIDL
Dim $tBuff, $pBuff, $tszBuff, $pszBuff
Dim $iRet, $iNumDevices = 0, $iSize = 0
Dim $tagRIDL = ''
Dim $aDevices[1][2]
$tRIDL = DllStructCreate($tagRAWINPUTDEVICELIST)
$iRIDL = DllStructGetSize($tRIDL)

Dim $iRet = _GetRawInputDeviceList(0, $iNumDevices, $iRIDL)
If Not @error And $iNumDevices > 0 Then
    ReDim $aDevices[$iNumDevices][2]
    For $i = 1 To $iNumDevices
        $tagRIDL &= StringRegExpReplace($tagRAWINPUTDEVICELIST, '(\w+);', '${1}' & $i & ';')
    Next
    $tBuff = DllStructCreate($tagRIDL)
    $pBuff = DllStructGetPtr($tBuff)
   
    $iRet = _GetRawInputDeviceList($pBuff, $iNumDevices, $iRIDL)
    For $i = 1 To $iNumDevices
        If DllStructGetData($tBuff, 'dwType' & $i) <> $RIM_TYPEMOUSE Then ContinueLoop
        $aDevices[$i-1][0] = DllStructGetData($tBuff, 'hDevice' & $i)
    Next
   
    For $i = 0 To $iNumDevices-1
        If DllStructGetData($tBuff, 'dwType' & $i) <> $RIM_TYPEMOUSE Then ContinueLoop
        $iRet = _GetRawInputDeviceInfo($aDevices[$i][0], $RIDI_DEVICENAME, '', $iSize)
        If $iSize > 0 Then
            $tszBuff = DllStructCreate('wchar[' & $iSize & ']')
            $pszBuff = DllStructGetPtr($tszBuff)
            $iRet = _GetRawInputDeviceInfo($aDevices[$i][0], $RIDI_DEVICENAME, $pszBuff, $iSize)
            $aDevices[$i][1] = DllStructGetData($tszBuff, 1)
            ConsoleWrite(DllStructGetData($tszBuff, 1) & @LF)
        EndIf
    Next
    
    $tszBuff = 0
    $tBuff = 0
EndIf

_ArrayDisplay($aDevices)

Func OnInput($hwnd, $iMsg, $iwParam, $ilParam);Process Keyboard Input from RawInput.au3 Commands
EndFunc

Thanks,

Kenny

Edited June 24, 2009 by ken82m

[Authenticity]

Heh Kenny, it's late overnight here so be easy on me been wake for the past 30+ hours on tens of cups of coffee . When you find which device handle matches which mouse, either by it's string representation or something else, you can implement it's configuration part using the same $WM_INPUT handler and differentiate it using it's device handle. If you can come up with an example code rather then listing the devices it might help.

[ken82m]

lol it's ok after beating my head against the wall alot I'm almost done.

I'll post it when I'm done.

One thing, how can I pull the "friendly" name of the mouse.

I'm just using the Hex number in hDevice in my script. But I'd like something friendlier to display on the screen.

When i pull the name all I get is \\acpi\kkssa\fdsf\2222.....you get the idea, How can I turn that into say "Microsoft Super Screw You PS/2 Mouse" lol

[Authenticity]

It's sort of a registry key starting in:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum

..and the sub-keys are for example:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\HID\Vid_046d&Pid_c016\6&11d1f3fa&0&0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\RDP_KBD\0000

There are a few value in the sub-keys that hold some nice values, may be helpful to you.

...heh

Edit: In short, # is \ with the device representation string you already know.

Edited June 26, 2009 by Authenticity

[John117]

Try this within the OnInput() handler:

; ...
ConsoleWrite(DllStructGetData($tRI_HID, 'hDevice') & @LF)
ConsoleWrite(DllStructGetData($tRI_HID, 'dwCount') & @LF)
ConsoleWrite(DllStructGetData($tRI_HID, 'bRawData') & @LF)
; ...

If the bRawData member will return always the same value or the program will crash I think the bRawData should be declared as an array bytes in the size of dwCount. First test it, and read the RawInput.au3 file, everything is taken from MSDN and in my opinion is nicely and conveniently organized.

Just so you know what I am working with here . . .

Reciever:

http://www.xbox.com/en-US/hardware/x/xbox360wirelessgamingreceiver/

Controller:

http://www.microsoft.com/hardware/gaming/productdetails.aspx?pid=090

ChatPad: (point of post)

http://www.xbox.com/en-US/hardware/x/xbox360messengerkit/

Microsoft has provided working drivers for the wireless receiver and controller.

This setup can be used in many games, etc.

Here is an example of an autoit user and their xbox controller UDF for review.

http://www.autoitscript.com/forum/index.php?showtopic=20161&st=0&p=144402&hl=xbox%20controller&fromsearch=1&#entry144402

Here is where the issue is:

The ChatPad was developed for use with the 360 and not the PC. The Controller works on both. The chat pad automatically prompts the 360 to download drivers, but does nothing on the PC.

When using:

expandcollapse popup

#include <RawInput.au3>
HotKeySet('{ESC}', '_EXIT')

Global $tRIDL, $pRIDL, $iRIDL, $tagRIDL
Global $tRIDI_HID, $pRIDI_HID, $iRIDI_HID
Global $tRID_HID, $pRID_HID, $iRID_HID
Global $tRIH, $pRIH, $iRIH
Global $iNumDevices
Global $hGUI


$hGUI = GUICreate('Test', 100, 100)
GUIRegisterMsg($WM_INPUT, 'OnInput')

$tRIDL = DllStructCreate($tagRAWINPUTDEVICELIST)
$iRIDL = DllStructGetSize($tRIDL)

$tRIH = DllStructCreate($tagRAWINPUTHEADER)
$pRIH = DllStructGetPtr($tRIH)
$iRIH = DllStructGetSize($tRIH)

$iNumDevices = 0
_GetRawInputDeviceList(0, $iNumDevices, $iRIDL)
If @error Or $iNumDevices = 0 Then Exit
$tagRIDL = ''
For $i = 1 To $iNumDevices
    $tagRIDL &= StringRegExpReplace($tagRAWINPUTDEVICELIST, '(\w+);', '${1}' & $i & ';')
Next

$tRIDL = DllStructCreate($tagRIDL)
$pRIDL = DllStructGetPtr($tRIDL)
_GetRawInputDeviceList($pRIDL, $iNumDevices, $iRIDL)

If Not @error And $iNumDevices > 0  Then
    For $i = 1 To $iNumDevices
        If DllStructGetData($tRIDL, 'dwType') = $RIM_TYPEHID Then
            $tRIDI_HID = DllStructCreate($tagRIDDEVICEINFO_HID)
            $pRIDI_HID = DllStructGetPtr($tRIDI_HID)
            $iRIDI_HID = DllStructGetSize($tRIDI_HID)
            
            _GetRawInputDeviceInfo(DllStructGetData($tRIDL, 'hDevice' & $i), $RIDI_DEVICEINFO, $pRIDI_HID, $iRIDI_HID)
            If Not @error Then
                $tRID_HID = DllStructCreate($tagRAWINPUTDEVICE)
                $pRID_HID = DllStructGetPtr($tRID_HID)
                $iRID_HID = DllStructGetSize($tRID_HID)
                
                DllStructSetData($tRID_HID, 'usUsagePage', DllStructGetData($tRIDI_HID, 'usUsagePage'))
                DllStructSetData($tRID_HID, 'usUsage', DllStructGetData($tRIDI_HID, 'usUsage'))
                DllStructSetData($tRID_HID, 'dwFlags', BitOR($RIDEV_INPUTSINK, $RIDEV_NOLEGACY))
                DllStructSetData($tRID_HID, 'hwndTarget', $hGUI)
                $iNumDevices = 1
                _RegisterRawInputDevices($pRID_HID, $iNumDevices, $iRID_HID)
                $tRID_HID = 0
            EndIf
            $tRIDI_HID = 0
        EndIf
    Next
    
    $tRIDL = 0
EndIf

While 1
    Sleep(20)
WEnd


Func OnInput($hwnd, $iMsg, $iwParam, $ilParam)
    Local $tRI_HID, $pRI_HID, $iRI_HID
   
    $tRI_KD = DllStructCreate($tagRAWINPUT_HID)
    $pRI_KD = DllStructGetPtr($tRI_HID)
    $iRI_KB = DllStructGetSize($tRI_HID)

    _GetRawInputData($ilParam, $RID_INPUT, $pRI_HID, $iRI_HID, $iRIH)
    If Not @error Then
        ConsoleWrite(DllStructGetData($tRI_HID, 'hDevice') & @LF)
        ConsoleWrite(DllStructGetData($tRI_HID, 'dwType') & @LF)
    ConsoleWrite(DllStructGetData($tRI_HID, 'bRawData') & @LF)

    EndIf
   
    $tRI_HID = 0
    Return 'GUI_RUNDEFMSG'
EndFunc

Func _EXIT()
    GUIDelete()
    Exit
EndFunc

I get something similar to this

0x00020393

1

0

0x00020393

1

0

-my first numbers are a little different (I’m not at home so I can’t use the controller to get the correct numbers) –but they are always identical to eachother followed by a 1 and 0

This is when I press a controller button.

When I press a chat pad botton I get nothing.

Also I get none of the other info the origional poster mentioned.

Such as how to get the usage and usagepage.

Also, because this is one device connected to a second device, I am guessing they would both have to be registered?

I will test any ideas you have tonight.

Can this be done without a driver for the chat pad?

[boogieoompa]

In regards to http://www.autoitscript.com/forum/index.php?showtopic=99263 Authenticity asked me to post in here....

OK so this seemed to kind of work. For those who did not read the last thread my goal was to capture input from an HID device and remap it. In this case remaping "a" to "j" whenever the computer recieves an "a" from the HID. The problem at the moment is it is not accepting a from the keyboard since the send command is traping it again. Is there a more elequant way of performing this task or is there a way around the send loop?

thanks in advance

expandcollapse popup

#include <RawInput.au3>
HotKeySet('{ESC}', '_EXIT')
HotKeySet("a", "FuncTrap")



Global $tRID_KD, $pRID_KD, $iRID_KD
Global $tRIH, $pRIH, $iRIH
Global $iNumDevices
Global $hGUI , $pData

$hGUI = GUICreate('Test', 100, 100)
GUIRegisterMsg($WM_INPUT, 'OnInput')

$tRID_KD = DllStructCreate($tagRAWINPUTDEVICE)
$pRID_KD = DllStructGetPtr($tRID_KD)
$iRID_KD = DllStructGetSize($tRID_KD)

$tRIH = DllStructCreate($tagRAWINPUTHEADER)
$pRIH = DllStructGetPtr($tRIH)
$iRIH = DllStructGetSize($tRIH)

$iNumDevices = 1

DllStructSetData($tRID_KD, 'usUsagePage', 0x01)
DllStructSetData($tRID_KD, 'usUsage', 0x06)
DllStructSetData($tRID_KD, 'dwFlags', BitOR($RIDEV_NOLEGACY, $RIDEV_INPUTSINK))
DllStructSetData($tRID_KD, 'hwndTarget', $hGUI)

_RegisterRawInputDevices($pRID_KD, $iNumDevices, $iRID_KD)

While 1
    Sleep(20)
WEnd

Func FuncTrap()

EndFunc

Func FuncSend()
    send("j")
EndFunc

Func FuncSend2()
    send("a")
EndFunc

Func OnInput($hwnd, $iMsg, $iwParam, $ilParam)
    Local $tRI_KD, $pRI_KD, $iRI_KB
    Local $tRIDI_HID, $pRIDI_HID, $iRIDI_HID
    Local $hDevice
   
    $tRI_KD = DllStructCreate($tagRAWINPUT_KEYBOARD)
    $pRI_KD = DllStructGetPtr($tRI_KD)
    $iRI_KB = DllStructGetSize($tRI_KD)
    
    $tRIDI_HID = DllStructCreate($tagRIDDEVICEINFO_HID)
    $pRIDI_HID = DllStructGetPtr($tRIDI_HID)
    $iRIDI_HID = DllStructGetSize($tRIDI_HID)
    DllStructSetData($tRIDI_HID, 'cbSize', $iRIDI_HID)



    _GetRawInputData($ilParam, $RID_INPUT, $pRI_KD, $iRI_KB, $iRIH)  
    If Not @error Then
        $hDevice = DllStructGetData($tRI_KD, 'hDevice')
        ConsoleWrite($hDevice & @LF)
        ConsoleWrite(DllStructGetData($tRI_KD, 'VKey') & @LF)
        ConsoleWrite(DllStructGetData($tRI_KD, 'hDevice') & @LF)
        
        _GetRawInputDeviceInfo($hDevice, $RIDI_DEVICEINFO, $pRIDI_HID, $iRIDI_HID)
If $hDevice = 0x0190016B Then
;   ClipPut ($hDevice&","& $RIDI_DEVICEINFO&","& $pRIDI_HID&","& $iRIDI_HID)
    FuncSend()
;   Msgbox(0,"Hoorah", DllStructGetData($tRI_KD, 'hDevice') )
Else
    FuncSend2()

EndIf

    EndIf
   
    $tRI_KD = 0
    Return 'GUI_RUNDEFMSG'
EndFunc

Func _EXIT()
    GUIDelete()
    Exit
EndFunc

[SagePourpre]

Very interesting subject. I'm just beginning

to figure out how to make it work but I love

this piece of code enough to pop that subject

up after 1 year of inactivity

[SagePourpre]

I would have a question...

Is it possible to get the "Handle to the RAWINPUT structure" that lparam provide in WM_INPUT but in

the keyproc function.

I need the 'hdevice' before WM_INPUT so I can decide accordingly

to the HID keyboard that performed the action if :

- I want to perform default action (ex : Typing letter 'q' will output 'q'

- I want to perform something totally different (ex : Typing letter 'q' from second 'hdevice' actually perform a function)

expandcollapse popup

#Region ;**** Directives created by AutoIt3Wrapper_GUI ****
#AutoIt3Wrapper_UseUpx=n
#EndRegion ;**** Directives created by AutoIt3Wrapper_GUI ****
#include <RawInput.au3>
#include <WinAPI.au3>
#Include <WindowsConstants.au3>
HotKeySet('{ESC}', '_EXIT')
Global $tRID_KD, $pRID_KD, $iRID_KDj
Global $tRIH, $iRIH
Global $iNumDevices
Global $hGUI
Global $sHexKeys, $sMouse, $sString, $hHookKeyboard, $pStub_KeyProc

$hGUI = GUICreate('Test', 100, 100)
GUIRegisterMsg($WM_INPUT, 'OnInput')
$pStub_KeyProc = DllCallbackRegister("_KeyProc", "int", "int;ptr;ptr")
$hHookKeyboard = _WinAPI_SetWindowsHookEx($WH_KEYBOARD_LL, DllCallbackGetPtr($pStub_KeyProc), _WinAPI_GetModuleHandle(0), 0)

$tRID_KD = DllStructCreate($tagRAWINPUTDEVICE)
$pRID_KD = DllStructGetPtr($tRID_KD)
$iRID_KD = DllStructGetSize($tRID_KD)

$tRIH = DllStructCreate($tagRAWINPUTHEADER)
$iRIH = DllStructGetSize($tRIH)
$iNumDevices = 1

DllStructSetData($tRID_KD, 'usUsagePage', 0x01)
DllStructSetData($tRID_KD, 'usUsage', 0x06)
DllStructSetData($tRID_KD, 'dwFlags', BitOR($RIDEV_NOLEGACY, $RIDEV_INPUTSINK))
DllStructSetData($tRID_KD, 'hwndTarget', $hGUI)

_RegisterRawInputDevices($pRID_KD, $iNumDevices, $iRID_KD)

While 1
    Sleep(20)
WEnd

GUIDelete()



Func _EXIT()
    GUIDelete()
    DllCallbackFree($pStub_KeyProc)
    _WinAPI_UnhookWindowsHookEx($hHookKeyboard)
    Exit
EndFunc


Func OnInput($hwnd, $iMsg, $iwParam, $ilParam)
    Local $tRI_KD, $pRI_KD, $iRI_KB
    Local $iSize


    $tRI_KD = DllStructCreate($tagRAWINPUT_KEYBOARD)
    $pRI_KD = DllStructGetPtr($tRI_KD)
    $iRI_KB = DllStructGetSize($tRI_KD)
    _GetRawInputData($ilParam, $RID_INPUT, $pRI_KD, $iRI_KB, $iRIH)
    If Not @error Then
        ConsoleWrite(DllStructGetData($tRI_KD, 'Message') & @LF)
        ConsoleWrite(DllStructGetData($tRI_KD, 'VKey') & @LF)
        ConsoleWrite(DllStructGetData($tRI_KD, 'hDevice') & @LF)
    EndIf

    $tRI_KD = 0
    Return 'GUI_RUNDEFMSG'
EndFunc

Func _KeyProc($nCode, $wParam, $lParam)
    If $nCode < 0 Then Return _WinAPI_CallNextHookEx($hHookKeyboard, $nCode, $wParam, $lParam)
    Local $KBDLLHOOKSTRUCT = DllStructCreate("dword vkCode;dword scanCode;dword flags;dword time;ptr dwExtraInfo", $lParam)
    Local $vkCode = DllStructGetData($KBDLLHOOKSTRUCT, 'vkCode')
    ConsoleWrite($vkCode & @CRLF)
    Switch $wParam
        Case $WM_KEYDOWN, $WM_SYSKEYDOWN
            If $vkCode = 0x41 Then
                ;_keybd_event(0x61, 0)
             ;   Return -1
            EndIf
    EndSwitch

    Return _WinAPI_CallNextHookEx($hHookKeyboard, $nCode, $wParam, $lParam)
EndFunc   ;==>_KeyProc

;Func _keybd_event($vkCode, $Flag)
 ;   DllCall('user32.dll', 'int', 'keybd_event', 'int', $vkCode, 'int', 0, 'int', $Flag, 'ptr', 0)
;EndFunc; _keybd_event

I'll post back if I find something useful.

[malu05]

You need to assign to struct size to the cbSize member of the struct, then you'll use this size also in the function call:

;.
;..
;...
$tRI_KD = 0
$tRI_KD = DllStructCreate($tagRID_DEVICE_INFO_HID)
$pRI_KD = DllStructGetPtr($tRI_KD)
$iRI_KB = DllStructGetSize($tRI_KD)
DllStructSetData($tRI_KD, 'cbSize', $iRI_KD) ; 8)

_GetRawInputDeviceInfo($ilParam, $RIDI_DEVICEINFO, $pRI_KD, $iRI_KB) ; Was $hwnd 8)
If Not @error Then
ConsoleWrite(DllStructGetData($tRI_KD, 'dwVendorId') & @CR)
MsgBox(0, "dwVendorId", DllStructGetData($tRI_KD, 'dwVendorId') )
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wtf?

[af3m1a]

thanks, i will evaluate this solution....