/* You must link with winmm.lib. If using Visual C++, go to Build->Settings.
Flip to the Link page, and add winmm.lib to the library/object modules.
This app plays the MIDI file C:\WINDOWS\SONG.MID using the Sequencer device
(ie, High level MIDI API). */

#include <windows.h>
#include <stdio.h>
#include <conio.h>
#include <mmsystem.h>

/************************** PrintMciErrorMsg() ***************************
 * Retrieves and displays an error message for the passed MCI error
 * number. It does this using mciGetErrorString().
 *************************************************************************/

void PrintMciErrorMsg(DWORD err, TCHAR * str)
{

   #define BUFFERSIZE 128
   char	buffer[BUFFERSIZE];
	
   printf("ERROR: %s\r\n", str);
   if (mciGetErrorString(err, &buffer[0], sizeof(buffer)))
   {
      printf("%s\r\n", &buffer[0]);
   }
   else
   {
      printf("0x%08X returned!\r\n", err);
   }

}

/* ******************************** main() ******************************** */

int main(int argc, char **argv)
{
   DWORD   err;
   MCI_OPEN_PARMS midiParams;

   /* Specify the Sequencer device as the type of device. It's true that, because we're
   also going to ask to open a MIDI filename that ends with a .MID and this extension
   undoubtably has a registry association with the Sequencer Device, we don't really need
   to set this field, nor specify the MCI_OPEN_TYPE|MCI_OPEN_TYPE_ID flags. But it doesn't
   hurt to play it safe by explicitly asking for the Sequencer device. */
   	
   midiParams.lpstrDeviceType = (LPCSTR)MCI_DEVTYPE_SEQUENCER;
	
   /* Specify the MIDI file we wish operated upon (ie, played) */
   midiParams.lpstrElementName = "C:\\WINDOWS\\SONG.MID";

   /* Open a Sequencer device, associating it with C:\WINDOWS\SONG.MID, and wait for
   the operation to complete */
   if ((err = mciSendCommand(0, MCI_OPEN, MCI_WAIT|MCI_OPEN_ELEMENT|MCI_OPEN_TYPE|MCI_OPEN_TYPE_ID, (DWORD)(LPVOID)&midiParams)))
   {
      /* Error */
      PrintMciErrorMsg(err, "Sequencer device did not open!");

      /* Exit the program */
      return(-1);
   }

   /* The device opened successfully. waveParams.wDeviceID now contains the device ID */

   /* Play the MIDI file (from beginning to end), and wait for this operation to complete */
   if ((err = mciSendCommand(midiParams.wDeviceID, MCI_PLAY, MCI_WAIT, (DWORD)(LPVOID)&midiParams)))
   {
      /* Error */
      PrintMciErrorMsg(err, "MIDI file did not play!");
   }

   /* Close the device, and wait for this operation to complete */
   mciSendCommand(midiParams.wDeviceID, MCI_CLOSE, MCI_WAIT, (DWORD)(LPVOID)&midiParams);

   return(0);
}