See also MCI_GETDEVCAPS
typedef struct { DWORD dwCallback; DWORD dwReturn; DWORD dwItem; } MCI_GETDEVCAPS_PARMS;
The MCI_GETDEVCAPS_PARMS structure contains parameters for the MCI_GETDEVCAPS message. When assigning data to the members in this structure, set the corresponding MCI flags in the lParam1 parameter of mciSendCommand to validate the members.
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.