C++中的MCI_OPEN_PARMS是什麼意思

MCI_OPEN_PARMS是一結構體類型，其結構體定義為

 

typedef struct {
  DWORD_PTR   dwCallback;
  MCIDEVICEID wDeviceID;//設別ID
  LPCTSTR     lpstrDeviceType;//裝置類型
  LPCTSTR     lpstrElementName;//檔案名稱
  LPCTSTR     lpstrAlias;//別名
} MCI_OPEN_PARMS;

 

 

結構體成員具體為：

dwCallback

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

wDeviceID

Identifier returned to application.

lpstrDeviceType

Name or constant identifier of the device type. (The name of the device is typically obtained from the registry or SYSTEM.INI file.) If this member is a constant, it can be one of the values listed in MCI Device Types.

lpstrElementName

Device element (often a path).

lpstrAlias

Optional device alias.