object

      Object associated with this media control interface command. The object can be one of the following:

      • Device type
      • Device name
      • Filename
      • Alias
      ALIAS devicealias
        Specifies an alternate name for the given device. If an alias is specified, it must be used in subsequent references to avoid automatic open. Following are descriptions of what an alias can be:

        • Any word that is not a keyword
        • Any valid filename
        • Any string of words enclosed in double quotes, for example: 
          "CD Player"
        If a string is used, any leading and trailing blanks are ignored and internal blanks are preserved. Uppercase and lowercase can be used, but an alias is case insensitive.
      DOSQUEUE
        If a device instance is opened with the DOSQUEUE keyword specified, window handles that are passed in for the instance will be treated as OS/2 Control Program queue handles.
      READONLY
        Specifies that the file is to be opened in read-only mode.
      SHAREABLE
        Initializes the device as shareable. Specifying shareable makes the resources of the device available to other device contexts. If SHAREABLE is not specified with OPEN, the resource will be exclusively acquired when the device is opened.
      TYPE devicetype
        Specifies the compound device used to control a device element. As an alternative to TYPE, an application can specify the name of a file to be opened. The media control interface uses the file EA or extension associated with the file to select the controlling device.
      WAIT
        The command is executed synchronously. The function waits until the requested action is complete before returning to the application.
      NOTIFY
        The command is executed asynchronously, allowing control to be returned immediately to the application. When the requested action is complete, an MM_MCINOTIFY message is sent to the application window procedure.

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