[sde]

when i open a midi port, i can designate a callback function. this function is triggered whenever a midi event is sent to the midi input.

if you really want to understand what i'm doing, here is some of the callback function:

void CALLBACK midiCallback(HMIDIIN handle, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2)
{
  LPMIDIHDR lpMIDIHeader;
  unsigned char *ptr;
  TCHAR buffer[80];
  unsigned char bytes;
  
  switch (uMsg)
  {
    // Received some regular MIDI message
    case MIM_DATA:
    {    
      // ignore active sensing
      if( dwParam1 != 0xF8 ){
            
        unsigned char cc,channel,value;
        cc = (dwParam1>>8);
        channel = (dwParam1>>0)%16;
        value = (dwParam1>>16);
        
        sprintf(&buffer[0], "cc: %d ch: %d v: %d \r\n", cc, 
                                                        channel, 
                                                        value);
        _cputs(&buffer[0]);
      }
      
      break;
    }
  }
}