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guillermoares

Problems with DllCall function

4 posts in this topic

Hi!

I'm building some automated tests for Internet Explorer 9 with AutoIT. I'm currently using keyboard shortcuts to control IE9, but I need these tests to run under any language. Since the shortcuts vary through different languages, I'm trying not to hardcode the key combinations but to take them from the IE9 .mui (internationalization) files. The file I'm trying to use right now is ieframe.dll.mui (which is under %windows%\%system32%\En-us). Supposedly, I should be able to get the information I want from this file using Windows API functions such as LoadAccelerators (MSDN). I'm not very C nor C++ experienced, so I'm having trouble both with the Windows API and with the AutoIT function DllCall.

This what I have so far:

Global $kernel32 = OpenDll("kernel32.dll")
Global $user32 = OpenDll("user32.dll")
Global $ieframe = OpenDll("ieframe.dll")

Local $accelerators = LoadAccelerators($ieframe, "")

ConsoleWrite($accelerators & @LF)

; ================= user32.dll functions ====================

Func LoadAccelerators($moduleHandle, $acceleratorTable)

Local $result = DllCall($user32, "HANDLE", "LoadAccelerators", "HANDLE", $moduleHandle, "str", $acceleratorTable)
CheckDllCallError(@error)
ConsoleWriteIfNull($result, "The accelerator is null")
Return $result

EndFunc

; ================= kernel32.dll functions ====================

Func FindResource($moduleHandle, $resourceId, $resourceType)

Local $result = DllCall($kernel32, "HANDLE", "FindResource", "HANDLE", $moduleHandle, "int", $resourceId, "int", $resourceType)
CheckDLLCallError(@error)
ConsoleWriteIfNull($result, "The resource handle is null")
Return $result

EndFunc

Func LoadResource($moduleHandle, $resourceHandle)

Local $result = DllCall($kernel32, "HANDLE", "LoadResource", "HANDLE", $ieframe, "HANDLE", $resourceHandle)
CheckDLLCallError(@error)
ConsoleWriteIfNull($resource, "The resource is null")
Return $result

EndFunc

; ================= Utils ====================

Func ConsoleWriteIfNull($var, $message)

If not $var Then

ConsoleWriteError($message & @LF)

EndIf

EndFunc

Func CheckDLLCallError($error)

Switch $error

Case 1
ConsoleWriteError("Unable to use the DLL file" & @LF)
Case 2
ConsoleWriteError("Unknown return type" & @LF)
Case 3
ConsoleWriteError("Function not found in the DLL file" & @LF)
Case 4
ConsoleWriteError("Bad number of parameters" & @LF)
Case 5
ConsoleWriteError("Bad parameter" & @LF)
Case Else

EndSwitch

EndFunc

Func OpenDll($dllName)
Local $dll = DllOpen($dllName)
If ($dll = -1) Then
ConsoleWriteError("Could not load " & $dllName & @LF)
EndIf
Return $dll
EndFunc

It seems that LoadAccelerators is returning a null value. I guess that I'm not passing the right argument/argument types, but I already tried several things to no avail.

Any help would be appreciated!

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What is it you're trying to accomplish with the shortcut keys? There is an Internet Explorer UDF that might help with this and eliminate using hotkeys all together.

Also, LoadAccelerators loads the accellerators, I don't believe it will give you anything back. Another thing, you're sending this a blank accelerator table, you're probably unsetting them with that. I'm not that familiar with what that does, so I could be guessing here. :)


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We are making test scripts for IE9. The company in which I'm working is making compatibility layers for different versions of IE (i.e. these layers could let you run IE6 in Windows 7). We were also asked to ship a (weak) test suit in AutoIT. These test suit should try every possibility that the IE UI gives (i.e. Try doing File -> open, Try doing Edit -> Select all, etc, etc, etc). I'm using the hotkeys to simulate these user inputs.

You're right about that function. I'm pretty lost messing around with the Windows API :P. Anyway, I can't figure out how to translate the (darn confusing) data types I see in the WinAPI documentation to the data types specified in the DllCall function documentation.

Also, yes, I know that the arguments I used in the code for the LoadAccelerators are obviously wrong and will never ever work... I tried several other things before, that was just testing.

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Bump.

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