MIM_OPEN message

The MIM_OPEN message is sent to a MIDI input callback function when a MIDI input device is opened.

MIM_OPEN 
dwParam1 = reserved 
dwParam2 = reserved 

Parameters

dwParam1

Reserved; do not use.

dwParam2

Reserved; do not use.

Return Value

This message does not return a value.

Requirements

Minimum supported client
Windows 2000 Professional [desktop apps only]
Minimum supported server
Windows 2000 Server [desktop apps only]
Header
Mmsystem.h (include Windows.h)

See also

Musical Instrument Digital Interface (MIDI)

MIDI Messages