সি/ভিবি দিয়ে সিডি/ডিভিডি ট্রে কীভাবে খুলবো?

Private Declare Function mciSendString Lib "winmm.dll" Alias "mciSendStringA" (ByVal lpstrCommand As String, ByVal lpstrReturnString As String, ByVal uReturnLength As Long, ByVal hwndCallback As Long) As Long

Private Sub command1_Click()
Dim LRet As Long
    LRet = mciSendString("set CDAudio door open", returnstring, 127, 0)
End Sub
Private Sub command2_Click()
Dim LRet As Long
    LRet = mciSendString("set CDAudio door closed", returnstring, 127, 0)
End Sub

#include <windows.h>
#include <winuser.h>

int main(void)
{
  char sString[22] = "set cdaudio door open";
  mciSendString(sString,0,0,0);
  return 0;
}

DWORD dwReturn;
MCI_OPEN_PARMS mciOpenParms;

mciOpenParms.lpstrDeviceType = (LPCSTR) dwDeviceType;
TCHAR szDriveName[4];
strcpy(szDriveName, "X:");
mciOpenParms.lpstrElementName=szDriveName;

DWORD dwFlags = MCI_OPEN_TYPE|MCI_OPEN_TYPE_ID|MCI_OPEN_ELEMENT|MCI_WAIT;
if (bShareable) dwFlags |= MCI_OPEN_SHAREABLE;

dwReturn = mciSendCommand(deviceid,MCI_OPEN, dwFlags, (DWORD)(LPVOID) &mciOpenParms);