Below is the C program display Mouse Pointer in graphics mode. Here we have used 2 functions to achieve it.
int initmouse() : function is used to intialize the mouse pointer. Which returns int value. Value 0 indicates Mouse support is not available.
void showmousepointer() : function is used to show mouse pointer. Which does not return any value.
void getmouseposition(int *button, int *x, int *y) : function to get the position of check the position of the mouse pointer. Also it sets the 'button' variable value to 1 or 2, which identifies the which mouse button is clicked.
void outtext(char *string) : Display the text at current position.
void cleardevice() : Function is used to clear the screen in graphics mode.
int kbhit() : Function is used to identify that is key is pressed or not.
int initmouse() : function is used to intialize the mouse pointer. Which returns int value. Value 0 indicates Mouse support is not available.
void showmousepointer() : function is used to show mouse pointer. Which does not return any value.
void getmouseposition(int *button, int *x, int *y) : function to get the position of check the position of the mouse pointer. Also it sets the 'button' variable value to 1 or 2, which identifies the which mouse button is clicked.
void outtext(char *string) : Display the text at current position.
void cleardevice() : Function is used to clear the screen in graphics mode.
int kbhit() : Function is used to identify that is key is pressed or not.
Code:
#include
#include
#include
union REGS i, o;
int initmouse()
{
i.x.ax = 0;
int86(0X33,&i,&o);
return ( o.x.ax );
}
void showmousepointer()
{
i.x.ax = 1;
int86(0X33,&i,&o);
}
void getmouseposition(int *button, int *x, int *y)
{
i.x.ax = 3;
int86(0X33,&i,&o);
*button = o.x.bx;
*x = o.x.cx;
*y = o.x.dx;
}
main()
{
int gd = DETECT, gm, status, button, x, y;
char array[50];
initgraph(&gd,&gm,"C:\\TC\\BGI");
settextstyle(DEFAULT_FONT,0,2);
status = initmouse();
if ( status == 0 )
printf("Mouse support not available.\n");
else
{
showmousepointer();
getmouseposition(&button,&x,&y);
while(!kbhit())
{
getmouseposition(&button,&x,&y);
if( button == 1 )
{
button = -1;
cleardevice();
sprintf(array,"Left Button clicked x = %d y = %d",x,y);
outtext(array);
}
else if( button == 2 )
{
button = -1;
cleardevice();
sprintf(array,"Right Button clicked x = %d y = %d",x,y);
outtext(array);
}
}
}
getch();
return 0;
}
