The division type of a MIDI sequence determines the amount of time between MIDI events in the sequence. To determine the division type of a sequence, use the MCI_STATUS command and set the dwItem member of the MCI_STATUS_PARMS structure to MCI_SEQ_STATUS_DIVTYPE .
If the MCI_STATUS command is successful, the dwReturn member of the MCI_STATUS_PARMS structure will contain one of the following values to indicate the division type.
| Value | Division type |
|---|---|
| MCI_SEQ_DIV_PPQN | PPQN (parts-per-quarter note) |
| MCI_SEQ_DIV_SMPTE_24 | SMPTE, 24 fps (frames per second) |
| MCI_SEQ_DIV_SMPTE_25 | SMPTE, 25 fps |
| MCI_SEQ_DIV_SMPTE_30 | SMPTE, 30 fps |
| MCI_SEQ_DIV_SMPTE_30DROP | SMPTE, 30 fps drop frame |
You must know the division type of a sequence to change or query its tempo. You cannot change the division type of a sequence by using the MCI sequencer.