MCI_SET_POSITION_ADVISE Parameter - ulParam1
ulParam1 (ULONG)
This
parameter can contain any of the following flags:
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_SET_POSITION_ADVISE_ON
This
flag specifies that position-change advise message frequency is to be set
to the value specified in the ulUnits field of the MCI_POSITION_PARMS
data structure.
MCI_SET_POSITION_ADVISE_OFF
This flag disables position-change advise messages.
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