Refers to a group using a name
instead of a group ID. A value for this variable must be specified with
the MAKE keyword.
Note: In use, the variable groupname is the same as an alias.
Although the ALIAS keyword is not used, all rules related to ALIAS apply
to the group name.
MAKE
Specifies
creation of a group by tying several instances together. Once "grouped",
the instances can be controlled by the application with one command.
The MAKE keyword requires values for the variables groupname and
(i1 i2 i3).
i1 i2 i3)
Refers to the device instances
that make up the group. Device instances can be identified using aliases,
device types, or filenames-the same identifiers used when the devices were
opened. A value for this variable must be specified with the MAKE keyword.
NOPIECEMEAL
Specifies
that the group is to be processed as a whole rather than as separate parts.
If one instance becomes inactive, all instances become inactive. This keyword
is used only with MAKE.
DELETE
Terminates an existing group by disassociating
instances that formed the group. No other keywords, except WAIT or NOTIFY,
can be used with DELETE.
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.