//mouse.h
#include<dos.h>

union REGS i,o;
void showmouse(void)
{   i.x.ax=1;
    int86(0x33,&i,&o);
}

void hidemouse(void)
{   i.x.ax=2;
    int86(0x33,&i,&o);
}

int mousex(void)
{   i.x.ax=3;
    int86(0x33,&i,&o);
    return(o.x.cx);
}

int mousey(void)
{   i.x.ax=3;
    int86(0x33,&i,&o);
    return(o.x.dx);
}

int mousebtn(void)
{  i.x.ax=3;
   int86(0x33,&i,&o);
   return( o.x.bx );
}

int m_status(int *x,int *y)
{   i.x.ax=3;
    int86(0x33,&i,&o);
    *x=o.x.cx;
    *y=o.x.dx;
    return(o.x.bx);
}
void swap(int *a,int *b)
{  int temp;
   temp=*a;
   *a=*b;
   *b=temp;
}

int inside(int x,int y,int left_x,int top_y,int right_x,int down_y)
{
    if (left_x>right_x)  swap(&left_x,&right_x);
    if (top_y>down_y)    swap(&top_y,&down_y);

    if ( (x>=left_x) && (x<=right_x) && (y>=top_y) && (y<=down_y)) return(1);
    return(0);
}