private static extern uint __so_midiOutUnprepareHeader( [MarshalAs( UnmanagedType.SysUInt )] IntPtr hMidiOut, ref MIDIHDR lpMidiOutHdr, [MarshalAs( UnmanagedType.U4 )] uint uSize );
public static uint midiOutUnprepareHeader( IntPtr hMidiOut, ref MIDIHDR lpMidiOutHdr, uint uSize ) {
uint ret = MMSYSERR_ERROR;
if ( status_winmm != DllStatus.NotFound ) {
try {
ret = __midiOutUnprepareHeader( hMidiOut, ref lpMidiOutHdr, uSize );
} catch ( DllNotFoundException ex ) {
status_winmm = DllStatus.NotFound;
}
} else if ( status_winmm_so != DllStatus.NotFound ) {
try {
ret = __so_midiOutUnprepareHeader( hMidiOut, ref lpMidiOutHdr, uSize );
} catch ( DllNotFoundException ex ) {
status_winmm_so = DllStatus.NotFound;
}
}
return ret;
}
private static extern uint __midiOutLongMsg( [MarshalAs( UnmanagedType.SysUInt )] IntPtr hMidiOut, ref MIDIHDR lpMidiOutHdr, [MarshalAs( UnmanagedType.U4 )] uint uSize );
