Unable to Open CD drive with CreateFile API and DeviceIOControl

[Prakhar]

Hi, I am trying to learn Win32 API with Autoit3, so I decided to create a script which will open my CD drive with WIN32 APIs, but my code doesn't work

here is my code:-

#include<winapi.au3>
#include<constants.au3>
$hDevice=_WinAPI_CreateFile("\\.\h:",$OPEN_EXISTING,$GENERIC_READ,BitOR($FILE_SHARE_READ,$FILE_SHARE_WRITE),0);my drive letter is h:
$Bytes=0
ConsoleWrite(_WinAPI_GetLastErrorMessage())
$hDLL=DllOpen("kernel32.dll")
$aRet=DllCall($hDLL,"int","DeviceIOControl","HANDLE",$hDevice,"DWORD","IOCTRL_STORAGE_EJECT_MEDIA","ptr",0,"dword",0,"ptr",0,"dword",0,"ptr",ptr($Bytes),"OVERLAPPED*",0)
if @error Then
    ConsoleWrite(@error & @CR)
    ConsoleWrite(_WinAPI_GetLastErrorMessage())
    EndIf

Edited September 1, 2010 by Prakhar

[trancexx]

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