#include <windows.h>

#define NOTIFY_FOR_THIS_SESSION     0
#define NOTIFY_FOR_ALL_SESSIONS     1

#define WM_WTSSESSION_CHANGE        0x02B1

#define WTS_CONSOLE_CONNECT         0x1
#define WTS_CONSOLE_DISCONNECT      0x2
#define WTS_REMOTE_CONNECT          0x3
#define WTS_REMOTE_DISCONNECT       0x4
#define WTS_SESSION_LOGON           0x5
#define WTS_SESSION_LOGOFF          0x6
#define WTS_SESSION_LOCK            0x7
#define WTS_SESSION_UNLOCK          0x8
#define WTS_SESSION_REMOTE_CONTROL  0x9

void session_notification_enable(HWND hWnd);
void session_notification_disable(HWND hWnd);