mciPlayParms.dwFrom = MCI_MAKE_TMSF(playTrack, 0, 0, 0);
mciPlayParms.dwTo = MCI_MAKE_TMSF(playTrack + 1, 0, 0, 0);
mciPlayParms.dwCallback = (DWORD)mainwindow;
mciPlayParms.dwFrom = MCI_MAKE_TMSF(playTrack, 0, 0, 0);
mciPlayParms.dwTo = MCI_MAKE_TMSF(playTrack + 1, 0, 0, 0);
mciPlayParms.dwCallback = (DWORD)mainwindow;