C Program to display mouse pointer in graphics mode

C Program to display mouse pointer in graphics mode
This program displays mouse pointer in graphics mode. First graphics mode is initialized and then mouse using initmouse.
C programming code
#include<graphics.h>
#include<conio.h>
#include<dos.h>

int initmouse();
void showmouseptr();

union REGS i, o;

main()
{
int status, gd = DETECT, gm;

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

status = initmouse();

if ( status == 0 )
printf("Mouse support not available.\n");
else
showmouseptr();

getch();
return 0;
}

int initmouse()
{
i.x.ax = 0;
int86(0X33,&i,&o);
return ( o.x.ax );
}

void showmouseptr()
{
i.x.ax = 1;
int86(0X33,&i,&o);
}