DRVM_IOCTL
Sent to a MIDI throughput device driver with information the driver uses to filter MIDI throughput data. This message is sent to a device driver when an application calls the midiOutMessage function.
- The return value is driver dependent.
- DWORD dwParam1
- Specifies the handle of the MIDI output device to which configuration information is intended to apply. This parameter may be NULL.
- DWORD dwParam2
- NULL or the address of a DRVM_IOCTL_DATA structure. (If this parameter is not zero, it is translated by the thunking layer as a pointer.) The meaning of the contents of this structure is driver-dependent.
See Also
DRVM_ADD_THRU, DRVM_IOCTL_DATA, DRVM_REMOVE_THRU