MM_MCISIGNAL
The
MM_MCISIGNAL message is sent to a window to notify an application that an MCI
device has reached a position defined in a previous signal (MCI_SIGNAL) command.
MM_MCISIGNAL
wParam = (WPARAM) wID
lParam = (LONG) lUserParm
Parameters
wID
Identifier of
the device initiating the signal message.
lUserParm
Value passed
in the dwUserParm member of the MCI_DGV_SIGNAL_PARAMS structure
when the signal command has defined this callback function.
Alternatively, it might contain the position value.
See Also