MCI_DGV_MONITOR_PARMS
The MCI_DGV_MONITOR_PARMS
structure contains parameters for the MCI_MONITOR command.
typedef struct
{
DWORD dwCallback;
DWORD dwSource;
DWORD dwMethod;
} MCI_DGV_MONITOR_PARMS;
Members
dwCallback
The low-order
word specifies a window handle used for the MCI_NOTIFY flag.
dwSource
One of the
following flags for the monitor source:
MCI_DGV_MONITOR_FILE
The workspace
is the presentation source. (This is the default source.) If this flag is used
during recording, the recording pauses. If the MCI_MONITOR command changes the
presentation source, recording or playing stops and the current position is the
value returned by the MCI_STATUS command for the start position.
MCI_DGV_MONITOR_INPUT
The external
input is the presentation source. Playback is paused before the input is
selected. If the MCI_SETVIDEO
command has been enabled using the MCI_SET_ON flag, this flag displays a
default hidden window. Device drivers might limit what other device instances
can do while monitoring input.
dwMethod
One of the
following constants for the type of monitoring:
MCI_DGV_METHOD_DIRECT
The device
should be configured for optimum display quality during monitoring. Direct
monitoring might be incompatible with motion-video recording.
MCI_DGV_METHOD_POST
The device
should show the external input after compression. Post monitoring supports
motion-video recording.
MCI_DGV_METHOD_PRE
The device
should show the external input prior to compression.
Remarks
When
assigning data to the members of this structure, set the corresponding flags in
the fdwCommand parameter of the mciSendCommand function to
validate the members.
See Also