MCI_SPIN

Starts the device spinning up or down. This command is part of the videodisc command set. The parameters and flags for this message vary according to the selected device.

Returns zero if successful. Otherwise, it returns an MCI error code.

DWORD lParam1

The following flags apply to all devices supporting MCI_SPIN:

MCI_NOTIFY	Specifies that MCI should post the MM_MCINOTIFY message when this command completes. The window to receive this message is specified in the dwCallback member of the structure identified by lParam2.
MCI_WAIT	Specifies that the spin up or spin down operation should finish before MCI returns control to the application.
MCI_VD_SPIN_UP	Starts the disc spinning.
MCI_VD_SPIN_DOWN	Stops the disc from spinning.

LPMCI_GENERIC_PARMS lParam2

Specifies a far pointer to the MCI_GENERIC_PARMS structure. (Devices with extended command sets might replace this structure with a device-specific structure.)