This
parameter can contain any of the following flags with the following limitation.
The MCI_CUE_INPUT and MCI_CUE_OUTPUT flags are mutually exclusive.
MCI_NOTIFY
A notification message will be posted
to the window specified in the hwndCallback parameter of the data
structure pointed to by the pParam2 parameter. The notification
will be posted when the action indicated by this message is completed or
when an error occurs.
MCI_WAIT
Control
is not to be returned until the action indicated by this message is completed
or an error occurs.
MCI_CUE_INPUT
This
flag cues or prerolls the device instance for input or recording.
MCI_CUE_OUTPUT
This flag cues or prerolls the device instance
for output or playback.
Digital Video Extensions
The following additional flags apply to digital video devices. These flags
are only valid when cueing the device instance for output. The MCI_NOSHOW
and MCI_SHOW flags are mutually exclusive.
MCI_NOSHOW
This flag causes the window to be hidden
while the cue operation is performed. This is the default. If MCI_TO is
not also specified, the media position will remain unchanged.
MCI_SHOW
This flag causes the window to be displayed while
the cue operation is performed. If MCI_TO is not also specified, the current
frame is displayed and the media position will advance by one (frame).
MCI_TO
This flag enables seeking to a specific location
in the media while cueing the device for playback. If this flag is specified,
the ulTo field of MCI_SEEK_PARMS
indicates the ending position of the seek operation. If the ulTo
position is beyond the end of the media or segment, an MCIERR_OUTOFRANGE
error is returned.
Wave Audio Extensions
The following additional flags apply to wave audio devices. The MCI_WAVE_INPUT
and MCI_WAVE_OUTPUT flags are mutually exclusive.
MCI_WAVE_INPUT
This flag cues or prerolls the device
instance for input or recording.
MCI_WAVE_OUTPUT
This flag cues or prerolls the device instance
for output or playback.
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