object
Object associated with this media
control interface command. The object can be one of the following:
- Device type
- Device name
- Filename
- Alias
ALIAS
device_alias
Specifies an alternate name for
the device. If specified, it must also be used for subsequent references.
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.
PARENT hwnd
Specifies
the window handle of the parent window. If specified, it is used as the
parent window of the digital video device default window.
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
on OPEN, the resource will be exclusively acquired when the device is opened.
TYPE device_type
Specifies
the compound device used to control a device element. As an alternative
to TYPE, the media control interface can use the extended attributes or
file extensions 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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