/**************************************************************************** * * callback.c * * Copyright (c) 1991 Microsoft Corporation. All Rights Reserved. * ***************************************************************************/ #include #include #include "sbtest.h" #pragma alloc_text(SBTESTCBFIX, SBMidiInCallback) // NOTE this function is entered at interrupt time // NOTE don't touch the DATA segment, it is not setup!!!!!! void FAR PASCAL SBMidiInCallback(HMIDIIN hMidiIn, UINT wMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2) { if (dwInstance) { if ((wMsg == MM_MIM_DATA) && ((dwParam1 & 0x000000F0) != 0x000000F0)) // don't allow system messages (e.g. active sensing!) midiOutShortMsg((HMIDIOUT)dwInstance, dwParam1); } }