MM_MIM_OPEN message

The MM_MIM_OPEN message is sent to a window when a MIDI input device is opened.

MM_MIM_OPEN 
wParam = (WPARAM) hInput 
lParam = reserved 

Parameters

hInput

Handle to the MIDI input device that was opened.

lParam

Reserved; do not use.

Return Value

This message does not return a value.

Requirements

Requirement Value
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