CreateProcessW Struct

[heartkey]

Hi guys, and firstly, Happy New Year ,

So here's my problem:

I'm trying since long to call the "CreateProcessW" kernel32.dll in order to start a new program in another desktop location , but the function in question doesn't like my structure...

Here's the code:

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#include <Winapi.au3>

Desk_StartProgram("c:\windows\explorer.exe", "c:\windows\", "Test") ;"Test" is the name given to the desktop in which the program must be displayed, of course I created the named desktop  before. 

Func Desk_StartProgram($hPath, $hCurrentdir, $hDesktop)

        Local $tSTARTUPINFO = DllStructCreate("dword  cbSize;" & _
            "ptr Reserved;" & _
            "ptr Title;" & _
            "str Desktop;" & _ ; When the "str" of this line is replaced by "ptr" the program is running properly, however it remains in the current desktop (default) 
            "dword X;" & _
            "dword Y;" & _
            "dword XSize;" & _
            "dword YSize;" & _
            "dword XCountChars;" & _
            "dword YCountChars;" & _
            "dword FillAttribute;" & _
            "dword Flags;" & _
            "ushort ShowWindow;" & _
            "ushort Reserved2;" & _
            "ptr Reserved2;" & _
            "ptr hStdInput;" & _
            "ptr hStdOutput;" & _
            "ptr hStdError")

            MsgBox(0,"",_WinAPI_GetLastErrorMessage()) ;returns "The operation was successful." 
            DllStructSetData($tSTARTUPINFO, "Desktop", $hDesktop)
            MsgBox(0,"",_WinAPI_GetLastErrorMessage()) ; returns "The operation was successful." 

    Local $tPROCESS_INFORMATION = DllStructCreate("ptr Process;" & _
            "ptr Thread;" & _
            "dword ProcessId;" & _
            "dword ThreadId")

        $aCall = DllCall("kernel32.dll", "int", "CreateProcessW", _
            "wstr", $hPath, _
            "wstr", "", _ ; CMDLINE
            "ptr", 0, _
            "ptr", 0, _
            "int", 0, _
            "dword", 4, _ ; deliberately pre-hung 
            "ptr", 0, _
            "wstr", $hCurrentdir, _ ; Curent Dir
            "ptr", DllStructGetPtr($tSTARTUPINFO), _
            "ptr", DllStructGetPtr($tPROCESS_INFORMATION))

    If @error Or Not $aCall[0] Then
        MsgBox(0,"",_WinAPI_GetLastErrorMessage()) ; returns "The parameter is incorrect." 
        Return SetError(1, 0, 0)
    EndIf

    Local $hThread = DllStructGetData($tPROCESS_INFORMATION, "Thread")
    DllCall("kernel32.dll", "int", "ResumeThread", "ptr", $hThread)
    Return DllStructGetData($tPROCESS_INFORMATION, "ProcessId")
EndFunc

Hoping someone can give me help, because I despair of being able to succeed one day ...

Cheers, Heartkey

[jchd]

Hi,

My reply on the French forum didn't find its way; don't know why.

Compare with this thread where Trancexx creates a process (this is the code in code tags, not the attached file).

Now str will convert an AutoIt string into ANSI (1char = 1byte) as opposed to wstr where 1 [unicode] char = 1 or 2 16-bit word.

Happy New ProcessW

[trancexx]

That should always be pointer. It's "ptr Desktop;"

Func Desk_StartProgram($hPath, $hCurrentdir, $sDesktop)

        Local $tSTARTUPINFO = DllStructCreate("dword  cbSize;" & _
            "ptr Reserved;" & _
            "ptr Title;" & _
            "ptr Desktop;" & _
            "dword X;" & _
            "dword Y;" & _
            "dword XSize;" & _
            "dword YSize;" & _
            "dword XCountChars;" & _
            "dword YCountChars;" & _
            "dword FillAttribute;" & _
            "dword Flags;" & _
            "ushort ShowWindow;" & _
            "ushort Reserved2;" & _
            "ptr Reserved2;" & _
            "ptr hStdInput;" & _
            "ptr hStdOutput;" & _
            "ptr hStdError")

            Local $tDesktop = DllStructCreate("wchar[" & StringLen($sDesktop) + 1 & "]")
            DllStructSetData($tDesktop, 1, $sDesktop)
            DllStructSetData($tSTARTUPINFO, "Desktop", DllStructGetPtr($tDesktop))
;...

Or something like that.

[heartkey]

Thank you for these answers,

trancexx solution works well (run the program properly) but in the current desktop ...

Thanks, Anthony.

PS: The CPP source code :

bool CDesktopManager::LaunchApplication(TCHAR *pszApplicationFilePath, TCHAR *pszDesktopName)
{
    bool bReturn = false;

    try
    {
        TCHAR szDirectoryName[ARRAY_SIZE] = {0};
        TCHAR szExplorerFile[ARRAY_SIZE]= {0};

        _tcscpy_s(szDirectoryName, _tcslen(pszApplicationFilePath) + 1, pszApplicationFilePath);

        PathRemoveFileSpec(szDirectoryName);

        STARTUPINFO sInfo = {0};
        PROCESS_INFORMATION pInfo = {0};

        sInfo.cb = sizeof(sInfo);
        sInfo.lpDesktop = pszDesktopName;

        //Lanuching a application into dekstop
        BOOL bCreateProcessReturn = CreateProcess(pszApplicationFilePath, 
            NULL, 
            NULL, 
            NULL, 
            TRUE, 
            NORMAL_PRIORITY_CLASS, 
            NULL, 
            szDirectoryName, 
            &sInfo, 
            &pInfo);

        TCHAR *pszError = NULL;
        bReturn = true;
    }
    return bReturn;
}

Edited January 2, 2010 by heartkey

[trancexx]

cbSize member is not set.

If that doesn't help, check that the new desktop is ok.

[heartkey]

I try to set cbSize with:

DllStructSetData($tSTARTUPINFO, "cbSize", DllStructGetSize($tSTARTUPINFO))

But this does not work, badly written ?

It never works .

[heartkey]

And the desktop is ok...