// File: simplecd.cxx
// Written by: Michael Main
// Note: This function must link with library winmm.lib:
// Project-->Properties-->ConfigurationProperties-->Linker-->Input
//   and then click to the right of Additional Dependencies
//   click the ... button that appears
//   type the name winmm.lib in the text box
//   and click Apply
//
// This simple program demonstrates some of the commands that can be sent to
// the MCI (Media Control Interface) to control the cd player.
// This works if you have only one cd player.  For multiple players,
// you would need to use the sysinfo function to get the names of
// the different cd audio devices, according to page 1281 of Petzold.)
//
// Current commands that this program accepts from the keyboard:
// C: Close the cdaudio device
// O: Open the cdaudio device and set its time format to tmsf
//    (track:minute:second:frame)
// E: Eject the cd (won't work for all hardware)
// P: Play from the start
// S: Stop playing
// T: Play a track (the user types the track number)
// Q: Quit

#include <iostream>   // Provides cin
#include <sstream>    // Provides the ostringstream
#include <graphics.h> // Provides bgi graphics and mciSendString
using namespace std;

int main( )
{
    char c;
    char buffer[100];
    int track;
    ostringstream command;
    MCIERROR error;

    do
    {
		cin >> c;
		c = toupper(c);
		switch (c)
		{
		case 'C':
			error = mciSendString("close cdaudio notify", NULL, 0, NULL);
			break;
		case 'E':
			error = mciSendString("eject cdaudio", NULL, 0, NULL);
			break;
		case 'O':
			error = mciSendString("open cdaudio", NULL, 0, NULL);
			if (error != 0)
			{
				cout << "Could not open cdaudio" << endl;
				exit(0);
			}
			error = mciSendString("set cdaudio time format tmsf", NULL, 0, NULL);
			break;
		case 'P':
			error = mciSendString("play cdaudio", NULL, 0, NULL);
			break;
		case 'S':
			error = mciSendString("stop cdaudio", NULL, 0, NULL);
			break;
		case 'T':
			cin >> track;
			command.str(""); // Set the command to the null string
			command << "play cdaudio from " << track << " to " << track+1;
			error = mciSendString(command.str().c_str( ), NULL, 0, NULL);
			break;
		case '?':
			error = mciSendString(
			"status cdaudio number of tracks",
			buffer,
			100,
			NULL
			);
			cout << "The CD has " << buffer << " tracks." << endl;
			break;
		}
	
	if (error != 0)
	    cout << "Error. This program does not yet handle errors." << endl;
    }   while (c != 'Q');

    return 0;
}