MCI_WAVE_OPEN_PARMS

The MCI_WAVE_OPEN_PARMS structure contains information for MCI_OPEN message for waveform audio devices. When assigning data to the fields in this data structure, set the corresponding MCI flags in the dwFlags parameter of mciSendCommand to validate the fields. You can use the MCI_OPEN_PARMS data structure in place of MCI_WAVE_OPEN_PARMS if you are not using the extended data fields.

typedef struct {
    DWORD  dwCallback;
    WORD  wDeviceID;
    WORD  wReserved0;
    LPSTR  lpstrDeviceType;
    LPSTR  lpstrElementName;
    LPSTR  lpstrAlias;
    DWORD  dwBufferSeconds;
} MCI_WAVE_OPEN_PARMS;

Fields

The MCI_WAVE_OPEN_PARMS structure has the following fields:

dwCallback

The low-order word specifies a window handle used for the MCI_NOTIFY flag.

wDeviceID

Specifies the device ID returned to user.

wReserved0

Reserved.

lpstrDeviceType

Specifies the name or constant ID of the device type obtained.

lpstrElementName

Specifies the device element name (usually a pathname).

lpstrAlias

Specifies an optional device alias.

dwBufferSeconds

Specifies the buffer length in seconds.

See Also

MCI_OPEN