//-------------------------------------------------------------------
//	trymouse.cpp
//
//	This rudimentary demo shows how a Linux C++ application can
//	use the gpm server to respond to mouse and keyboard events. 
//	It is based on a C example by Pradeep Padala (cited below).
//
//	Compile using:	g++ trymouse.c -lgpm -o trymouse
//
//	Reference: Pradeep Padala, "Mouse Programming with libgpm" 
//	online at: http://www.cise.ufl.edu/~ppadala/phd/libgpm.pdf
//	preliminary version of article submitted to Linux Journal.
//
//	programmer: ALLAN CRUSE
//	written on: 14 AUG 2003
//	revised on: 22 OCT 2003
//-------------------------------------------------------------------

#include <stdio.h>	// for printf(), perror()
#include <gpm.h>	// for Gpm_Open(), Gpm_Getc(), etc. 
 
#define KEY_ESCAPE 0x1B


int my_handler( Gpm_Event *evt, void *data )
{
	printf( "Event type %d ", evt->type );
	printf( "at x=%d y=%d  ", evt->x, evt->y );
	printf( "dx=%d  dy=%d\n", evt->dx, evt->dy );
	return	0; 
}


int main( int argc, char **argv )
{
	// establish a connection with the gpm server-daemon
	Gpm_Connect	conn;
	conn.eventMask = ~0;	// we want to know about all events
	conn.defaultMask = 0;	// don't handle anything by default
	conn.minMod = 0;	// we want to know about everything
	conn.maxMod = ~0;	// (info on any modifiers included)
	if ( Gpm_Open( &conn, 0 ) == -1 ) 
		{
		perror( "cannot connect to mouse server" );
		return 	1;
		}

	// install our custom event-handler
	gpm_handler = my_handler;

	// main loop (to process canonical keyboard input)
	int	c = 0;
	while ( ( c = Gpm_Getc( stdin ) ) != KEY_ESCAPE );	

	// close our connection with the gpm server-daemon
	Gpm_Close();
}