DRVM_REMOVE

DRVM_REMOVE_THRU

See also DRVM_ADD_THRU, DRVM_IOCTL

Sent to a MIDI input device driver to remove a given device from the list of output devices that receive MIDI throughput data. This message is sent to a device driver when an application calls the midiDisconnect function.

The return value is an error code, or zero (MMSYSERR_NOERROR) if the operation is successful. Possible error codes are:

MMSYSERR_NOTENABLED	The driver failed to load or initialize.
MIDIERR_NOTREADY	The MIDI hardware is busy with other data.

DWORD dwParam1

Specifies the handle of the MIDI output device to be removed from the throughput list.

DWORD dwParam2

Address of user-instance data. This parameter can be NULL.