www.pudn.com > dos_gui.zip > MOUSE.CPP

#include "mouse.h" 
#include "yyxsys.h" 
 
mouse_class::mouse_class() 
{ 
	reset(); 
	mouse_x=0; mouse_y=0; 
	set_posn(); 
//	setup event handler 
 
	m1=M_SET_EVENT_HNDL; 
//	m3=0x2 | 0x4  	; // press & release LEFT BUTTON 
	m3=1			; // press & release LEFT BUTTON 
	_ES =FP_SEG ((void far *) mouse_event_handler); 
	m4 =FP_OFF ((void far*)  mouse_event_handler); 
//	mouse(&m1,&m2,&m3,&m4); 
	prev_cursor_state=FALSE; 
	on(0); 
} 
 
mouse_class::~mouse_class() 
{ 
	m1=M_SET_EVENT_HNDL; 
//	m3=0x2 | 0x4  	; // press & release LEFT BUTTON 
	m3=0			; // press & release LEFT BUTTON 
	_ES =FP_SEG ((void far *) mouse_event_handler); 
	m4 =FP_OFF ((void far*)  mouse_event_handler); 
	mouse(&m1,&m2,&m3,&m4); 
	reset(); 
} 
 
void mouse_class::mouse(int *m1,int *m2,int *m3,int *m4) 
{ 
	union REGS inregs,outregs; 
	inregs.x.ax=*m1; 
	inregs.x.bx=*m2; 
	inregs.x.cx=*m3; 
	inregs.x.dx=*m4; 
	int86 (0x33,&inregs,&outregs); 
	*m1=outregs.x.ax; 
	*m2=outregs.x.bx; 
	*m3=outregs.x.cx; 
	*m4=outregs.x.dx; 
} 
 
BOOL mouse_class::reset() 
{   m1=M_RESET; 
	mouse(&m1,&m2,&m3,&m4); 
	return (m1==-1); 
} 
 
void mouse_class::on(int restoreflag) //0 ;regardless of state; //1 conditional 
//first 0; later 1;only if previous is on 
{   if (!restoreflag||prev_cursor_state) { 
		m1=M_SHOW_CURS; 
		mouse (&m1,&m2,&m3,&m4); 
		prev_cursor_state=TRUE; 
	} 
} 
 
void mouse_class::off(int tempflag) //0 ;regardless of state; //1 conditional 
//first 0; later 1;only if previous is on, set to off 
//usually use (1) 
{   if (prev_cursor_state) { 
		m1=M_HIDE_CURS; 
		mouse (&m1,&m2,&m3,&m4); 
		if (!tempflag) prev_cursor_state=FALSE; 
	} 
} 
 
void mouse_class::get_posn() 
{ 
	m1=M_GET_STATUS; 
	mouse (&m1,&m2,&mouse_x,&mouse_y); 
} 
 
void mouse_class::get_posn_xy(int &x,int &y) 
{ 
	m1=M_GET_STATUS; 
	mouse (&m1,&m2,&x,&y); 
} 
 
void mouse_class::set_posn(int x,int y) 
{ 
	m1=M_SET_CURS; 
	if (!x||!y)	mouse (&m1,&m2,&x,&y); 
	else	mouse (&m1,&m2,&mouse_x,&mouse_y); 
} 
 
int mouse_class::get_press_count(int mouse_button) 
{ 
	m1=M_GET_PRESS; 
	m2=mouse_button; 
	mouse (&m1,&m2,&m3,&m4); 
	if (mouse_button==LEFT_BUTTON) left_button_status =m1; else 
	if (mouse_button==RIGHT_BUTTON) right_button_status =m2; 
 
	return (m2);	//0,1,2,3,4......since last call 
} 
 
 
int mouse_class::get_release_count(int mouse_button) 
{ 
	m1=M_GET_REL; 
	m2=mouse_button; 
	mouse (&m1,&m2,&m3,&m4); 
	if (mouse_button==LEFT_BUTTON) left_button_status =m1; else 
	if (mouse_button==RIGHT_BUTTON) right_button_status =m2; 
 
	return (m2);	//0,1,2,3,4......since last call 
} 
 
int mouse_class::mouse_event_handler(...) 
{ 
	putch('\007'); 
}