The MCI_GETDEVCAPS_PARMS structure contains parameters for the MCI_GETDEVCAPS message. When assigning data to the fields in this data structure, set the corresponding MCI flags in the lParam1 parameter of mciSendCommand to validate the fields.
typedef struct {
DWORD dwCallback;
DWORD dwReturn;
DWORD dwItem;
} MCI_GETDEVCAPS_PARMS;
The MCI_GETDEVCAPS_PARMS structure has the following fields:
dwCallback
The low-order word specifies a window handle used for the MCI_NOTIFY flag.
dwReturn
Contains the return information on exit.
dwItem
Identifies the capability being queried.