MCI_ESCAPE 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_ESCAPE_STRING
This
flag indicates a command string is specified in the pszCommand field
of the MCI_ESCAPE_PARMS data structure.
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