how to write mouse program in linux - c

Question

I have tried to write a program which will detect the mouse movement. But it is showing error while running in linux environment. i also want to implement the program where if user move the mouse in x axis for different distance like 2cm, 4 cm then it will print some statement. how can i initialize the mouse in linux and get the cursur point coordinate(x,y) while user move mouse.
#include <dos.h>
#include <graphics.h>
union REGS in, out;
void detect_mouse ()
{
in.x.ax = 0;
int86 (0X33,&in,&out); //invoke interrupt
if (out.x.ax == 0)
printf ("\nMouse Failed To Initialize");
else
printf ("\nMouse was Succesfully Initialized");
}
void showmouse_graphics ()
{
int gdriver = DETECT, gmode, errorcode;
initgraph(&gdriver, &gmode, "c:\\tc\\bgi");
in.x.ax = 1;
int86 (0X33,&in,&out);
getch ();
closegraph ();
}
void detect ()
{
int button;
while (!kbhit () )
{
in.x.ax = 3;
int86 (0X33,&in,&out);
button=out.x.bx&7
switch(button)
{
case 1:
print(“left button pressed\n”);
break;
case 2:
print(“right button pressed\n”);
break;
case 4:
print(“middle button pressed\n”);
break;
case 3:
print(“left and right button pressed\n”);
break;
case 5:
print(“left and middle button pressed\n”);
break;
case 6:
print(“right and middle button pressed\n”);
break;
case 7:
print(“all the three buttons pressed\n”);
break;
default:
print(“No button pressed\n”);
}
delay (200); // Otherwise due to quick computer response 100s of words will get print
}
}
void hide_mouse ()
{
in.x.ax = 2;
int86 (0X33,&in,&out);
}
int main ()
{
detect_mouse ();
showmouse_graphics ();
detect ();
hide_mouse ();
return 0;
}

Answer 1

You are using dos.h which is a header available for MS/PC-DOS, not available in Linux. It's my strong belief that it doesn't even compile under gcc in Linux.