Ладно вот и CD (из delphiworld)
| Код |
procedure TMainForm.CD_Lock(Locked: Boolean, DriveLetter: string);
const
IOCTL_STORAGE_MEDIA_REMOVAL = $002D4804;
var
hDrive: THandle;
Returned: DWORD;
DisableEject: boolean;
begin
hDrive := CreateFile(PChar('\\.\' + DriveLetter), GENERIC_READ,
FILE_SHARE_READ, nil, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
0);
if GetLastError <> 0 then
MessageDlg('Error:' + IntToStr(GetLastError), mtError, [mbOK], 0);
try
DisableEject := Locked;
if not DeviceIoControl(hDrive,
IOCTL_STORAGE_MEDIA_REMOVAL, // PREVENT_MEDIA_REMOVAL,
@DisableEject,
SizeOf(DisableEject),
nil,
0,
Returned,
nil) then
MessageDlg('Ошибка:' + IntToStr(GetLastError), mtError, [mbOK], 0)
finally
CloseHandle(hDrive)
end;
end;
CD_Lock(True) - блокирует CD-ROM
CD_Lock(False) - разблокирует CD-ROM
Для полного веселья можно заблокировать все CD-ROMы в системе через это:
procedure TMainForm.LockCDROMs;
var
w: dword;
Root: string;
i: byte;
begin
w := GetLogicalDrives;
Root := '#:\';
for i := 0 to 25 do
begin
Root[1] := Char(Ord('A') + i);
if (W and (1 shl i)) > 0 then
if GetDriveType(PChar(Root)) = DRIVE_CDROM then
begin
DriveLetter := Copy(Root, 1, Length(Root) - 1);
CD_Lock(True, DriveLetter)
end
end;
end;
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