Как открыть и закрыть лоток у разных приводов?
Как открыть и закрыть лоток у разных приводов?
Как открыть и закрыть лоток у разных приводов? unit DriveTools; interface uses Windows, SysUtils, MMSystem; function CloseCD(Drive: Char): Boolean; function OpenCD(Drive: Char): Boolean; implementation function OpenCD(Drive: Char): Boolean; var Res: MciError; OpenParm: TMCI_Open_Parms; Flags: DWord; S: string; DeviceID: Word; begin Result := false; S := Drive + ':'; Flags := mci_Open_Type or mci_Open_Element; with OpenParm do begin dwCallback := 0; lpstrDeviceType := 'CDAudio'; lpstrElementName := PChar(S); end; Res := mciSendCommand(0, mci_Open, Flags, Longint(@OpenParm)); if Res <> 0 then exit; DeviceID := OpenParm.wDeviceID; try Res := mciSendCommand(DeviceID, MCI_SET, MCI_SET_DOOR_OPEN, 0); if Res = 0 then exit; Result := True; finally mciSendCommand(DeviceID, mci_Close, Flags, Longint(@OpenParm)); end; end; function CloseCD(Drive: Char): Boolean; var Res: MciError; OpenParm: TMCI_Open_Parms; Flags: DWord; S: string; DeviceID: Word; begin Result := false; S := Drive + ':'; Flags := mci_Open_Type or mci_Open_Element; with OpenParm do begin dwCallback := 0; lpstrDeviceType := 'CDAudio'; lpstrElementName := PChar(S); end; Res := mciSendCommand(0, mci_Open, Flags, Longint(@OpenParm)); if Res <> 0 then exit; DeviceID := OpenParm.wDeviceID; try Res := mciSendCommand(DeviceID, MCI_SET, MCI_SET_DOOR_CLOSED, 0); if Res = 0 then exit; Result := True; finally mciSendCommand(DeviceID, mci_Close, Flags, Longint(@OpenParm)); end; end; end.