// ____ _ ______ __
// / __ \_____(_) _____/_ __/___ ____ / /____
// / / / / ___/ / | / / _ \/ / / __ \/ __ \/ / ___/
// / /_/ / / / /| |/ / __/ / / /_/ / /_/ / (__ )
// /_____/_/ /_/ |___/\___/_/ \____/\____/_/____/
//
(*******************************************************************************
* DriveTools 1.0 *
* *
* (c) 1999 Jan Peter Stotz *
* *
********************************************************************************
* *
* If you find bugs, has ideas for missing featurs, feel free to contact me *
* [email protected] *
* *
********************************************************************************
* Date last modified: May 22, 1999 *
*******************************************************************************)
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.
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