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#include <tchar.h>
#include <iostream>
#include <windows.h>
#include <mmsystem.h>
using namespace std;
#pragma comment(lib, "winmm")
void ControlCdTray(TCHAR drive, DWORD command)
{
MCIERROR mciError = 0;
DWORD mciFlags = MCI_WAIT | MCI_OPEN_SHAREABLE |
MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID | MCI_OPEN_ELEMENT;
TCHAR elementName[] = { drive };
MCI_OPEN_PARMS mciOpenParms = { 0 };
mciOpenParms.lpstrDeviceType = (LPCTSTR)MCI_DEVTYPE_CD_AUDIO;
mciOpenParms.lpstrElementName = elementName;
mciError = mciSendCommand(0,
MCI_OPEN, mciFlags, (DWORD_PTR)&mciOpenParms);
MCI_SET_PARMS mciSetParms = { 0 };
mciFlags = MCI_WAIT | command;
mciError = mciSendCommand(mciOpenParms.wDeviceID,
MCI_SET, mciFlags, (DWORD_PTR)&mciSetParms);
mciFlags = MCI_WAIT;
MCI_GENERIC_PARMS mciGenericParms = { 0 };
mciError = mciSendCommand(mciOpenParms.wDeviceID,
MCI_CLOSE, mciFlags, (DWORD_PTR)&mciGenericParms);
}
void EjectCdTray(TCHAR drive)
{
ControlCdTray(drive, MCI_SET_DOOR_OPEN);
}
void CloseCdTray(TCHAR drive)
{
ControlCdTray(drive, MCI_SET_DOOR_CLOSED);
}
int main()
{
cout << "Press E to eject the CD drive" << endl;
while (true)
{
if (GetAsyncKeyState(0x45))
{
cout << "Ejecting CD drive" << endl;
EjectCdTray(TEXT('E'));
cout << "Press R to retract the CD drive" << endl;
}
if (GetAsyncKeyState(0x52))
{
cout << "Retracting CD drive" << endl;
CloseCdTray(TEXT('E'));
cout << "Press E to eject the CD drive" << endl;
}
}
}
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