Блокировка и разблокировка CD-ROM

Автор: Baa
WEB-сайт: http://forum.vingrad.ru

Вы уж простите, что на сях... сподручней было :\

//заблокировать 
void CMFcDlg::OnBnClickedButton1()
{
HANDLE hDevice = CreateFile ("\\\\.\\E:",
GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
NULL,
NULL);
DWORD dwBytesReturned = 0;
PREVENT_MEDIA_REMOVAL pmr = {TRUE};
if(!DeviceIoControl (hDevice, IOCTL_STORAGE_MEDIA_REMOVAL, &pmr, sizeof(pmr),
NULL, 0, &dwBytesReturned, NULL)) AfxMessageBox ("Door can\'t be locked");
CloseHandle (hDevice);
}
//разблокировать
void CMFcDlg::OnBnClickedButton2()
{
HANDLE hDevice = CreateFile ("\\\\.\\E:",
GENERIC_READ,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
NULL,
NULL);
DWORD dwBytesReturned = 0;
PREVENT_MEDIA_REMOVAL pmr = {FALSE};
if(!DeviceIoControl (hDevice, IOCTL_STORAGE_MEDIA_REMOVAL, &pmr, sizeof(pmr),
NULL, 0, &dwBytesReturned, NULL)) AfxMessageBox ("Door can\'t be unlocked");
CloseHandle (hDevice);
}

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