🚀 go-pugleaf

"Stefano Bonifazi" <stefboombastic@libero.it> wrote in message
news:4368a145@newsgroups.borland.com...

>  mcisysinfo.wDeviceType=MCI_DEVTYPE_CD_AUDIO;
>  MCIERROR
>
errcode=mciSendCommand(NULL,MCI_SYSINFO,MCI_SYSINFO_QUANTITY,(DWORD)&mcisysi
nfo);

Try specifying MCI_DEVTYPE_CD_AUDIO instead of NULL as the IDDevice
parameter of mciSendCommand():

    MCI_SYSINFO_PARMS params = {0};
    char Buffer[256] = {0};
    params.lpstrReturn = Buffer;
    params.dwRetSize = 256;
    params.wDeviceType = MCI_DEVTYPE_CD_AUDIO;

    MCIERROR errcode = mciSendCommand(MCI_DEVTYPE_CD_AUDIO, MCI_SYSINFO,
MCI_SYSINFO_QUANTITY, (DWORD)&params);

If that doesn't work, then you will just have to enumerate the drive letters
manually by using the GetLogicalDriveStrings() and GetDriveType() functions:

    char DriveLetters[108] = {0};
    if( GetLogicalDriveStrings(sizeof(DriveLetters), DriveLetters) )
    {
        char *Drive = DriveLetters;
        while( *Drive != '\0' )
        {
            if( GetDeviceType(Drive) == DRIVE_CDROM )
                // use Drive as needed...
            Drive += 4;
        }
    }

When opening a device, you can open a specific drive letter without knowing
its index in the MCI table by specifying the drive letter in the
lpstrElementName member of the MCI_OPEN_PARMS structure:

    MCI_OPEN_PARMS params = {0};
    params.lpstrDeviceType = (LPSTR) MAKELONG(MCI_DEVTYPE_CD_AUDIO, 0);
    params.lpstrElementName = "X:";

    errcode = mciSendCommand(0, MCI_OPEN, MCI_OPEN_TYPE | MCI_OPEN_TYPE_ID |
MCI_OPEN_ELEMENT, (DWORD)&params);

You can then send commands to the device ID that is returned.

Alternatively, you can use mciSendString() instead of mciSendCommand(),
using the "open" string:

    char Buffer[256];
    errcode = mciSendString("open X: type cdaudio alias MyCD", Buffer, 256,
NULL);

You can then send commands to the opened device using the "MyCD" alias (you
can name the alias whatever you want).


Gambit