Use cases of mouse programming in C/C++

// C++ program to display Mouse
// pointer in Graphics Mode
#include <bits/stdc++.h>
#include <conio.h>
#include <dos.h>
#include <graphics.h>
#include <stdio.h>
using namespace std;
union REGS in, out;

// Function to display the mouse
// pointer
void showMouse()
{
    // Set service AX = 1 for
    // displaying mouse
    in.x.ax = 1;
    int86(0X33, &in, &out);
}

// Function to initialize the mouse
// pointer
int initMouse()
{
    // Set service AX = 0 for
    // detecting mouse
    in.x.ax = 0;
    int86(0x33, &in, &out);

    return out.x.ax;
}

// Driver Code
void main()
{
    int status, gd = DETECT, gm;
    clrscr();

    initgraph(&gd, &gm, "C:\\TURBOC3\\BGI");

    // Get the status of mouse pointer
    status = initMouse();

    // Check if mouse is available or not
    if (status == 0)
        cout << "Mouse support not"
             << " available.\n";
    else {
        cout << "Display mouse";
        showMouse();
    }

    getch();

    // Close the graphics
    closegraph();
}

// C++ program for hiding Mouse Pointer
#include <bits/stdc++.h>
#include <conio.h>
#include <dos.h>
#include <graphics.h>
using namespace std;

union REGS in, out;

// Function to initialize the mouse
// pointer using graphics
int initMouse()
{
    in.x.ax = 0;
    int86(0X33, &in, &out);

    return out.x.ax;
}

// Function to display the mouse
// pointer using graphics
void showMouse()
{
    in.x.ax = 1;
    int86(0X33, &in, &out);
}

// Function to hide the mouse
// pointer using graphics
void hideMouse()
{
    // Set AX=2 to hide mouse
    in.x.ax = 2;
    int86(0X33, &in, &out);
}

// Driver Code
void main()
{
    int status, i, gd = DETECT, gm;

    // Initialize graphics
    initgraph(&gd, &gm, "C:\\TURBOC3\\BGI");

    // Get the status of the mouse
    status = initMouse();

    // Check if mouse is available or not
    if (status == 0)
        cout << "Mouse support "
             << "not available.\n";
    else {
        for (i = 0; i <= 10; i++) {

            // Pause execution for .5 sec
            delay(500);
            showMouse();
            delay(500);
            hideMouse();
        }
    }

    getch();

    // Close the graphics
    closegraph();
}

// C program to determine the current
// mouse position and button clicked
#include <bits/stdc++.h>
#include <conio.h>
#include <dos.h>
#include <graphics.h>
#include <stdio.h>
using namespace std;
union REGS in, out;

// Function to initialize the mouse
// pointer using graphics
int initMouse()
{
    in.x.ax = 0;
    int86(0X33, &in, &out);

    return out.x.ax;
}

// Function to display the mouse
// pointer using graphics
void showMouse()
{
    in.x.ax = 1;
    int86(0X33, &in, &out);
}

// Function to get the current clicked
// mouse position on the screen
void getMousePosition(int* click,
                      int* x, int* y)
{
    in.x.ax = 3;
    int86(0X33, &in, &out);

    // Get the coordinates
    *click = out.x.bx;

    // Update the x and y coordinates
    *x = out.x.cx;
    *y = out.x.dx;
}

// Driver Code
void main()
{
    int status, i, gd = DETECT, gm;

    // Initialize graphics
    initgraph(&gd, &gm, "C:\\TURBOC3\\BGI");

    // Get the status of the mouse
    status = initMouse();

    // Check if mouse is available or not
    if (status == 0)
        printf("Mouse support "
               "not available.\n");
    else {

        showMouse();

        // Get the current mouse position
        getMousePosition(&click, &x, &y);

        while (!kbhit()) {

            getMousePosition(&click, &x, &y);
            gotoxy(1, 1);
            printf("X = %d, Y = %d", x, y);

            if (click == 1)
                cout << "\nLeft click at "
                     << "position = "
                     << x << ", " << y;

            if (click == 2)
                cout << "\nRight click at "
                     << "position = "
                     << x << ", " << y;
        }
    }

    getch();

    // Close the graphics
    closegraph();
}