How to check to see which page is displayed when using the page button

// Demonstration of how to get the currently displayed
// RemoteXY Page into your sketch. Currently this is not
// available from RemoteXY.
//
// It uses a "hidden" Selector which is overlayed with
// the Page buttons.
// 
// When a Page button is pressed, it will also set the 
// Selector to a value that can be used in your sketch to
// determine what page is being displayed.

//////////////////////////////////////////////
//        RemoteXY include library          //
//////////////////////////////////////////////

// RemoteXY select connection mode and include library 
#define REMOTEXY_MODE__ESP8266WIFI_LIB_POINT
#include <ESP8266WiFi.h>

#include <RemoteXY.h>

// RemoteXY connection settings 
#define REMOTEXY_WIFI_SSID "PageNumber"
#define REMOTEXY_WIFI_PASSWORD ""
#define REMOTEXY_SERVER_PORT 6377


// RemoteXY configurate  
#pragma pack(push, 1)
uint8_t RemoteXY_CONF[] =   // 93 bytes
  { 255,3,0,0,0,86,0,16,24,4,3,3,6,13,13,36,0,24,24,131,
  1,3,13,18,10,3,2,31,80,103,46,49,0,7,21,76,25,13,9,0,
  2,26,2,131,0,3,25,18,10,1,2,31,80,103,46,50,0,131,0,3,
  37,18,10,2,2,31,80,103,46,51,0,129,0,41,27,33,5,0,17,67,
  117,114,114,114,101,110,116,32,80,97,103,101,0 };
  
// this structure defines all the variables and events of your control interface 
struct {

    // input variables
  uint8_t select_1; // =0 if select position A, =1 if position B, =2 if position C, ... 
  int16_t edit_1;  // 32767.. +32767 

    // other variable
  uint8_t connect_flag;  // =1 if wire connected, else =0 

} RemoteXY;
#pragma pack(pop)

/////////////////////////////////////////////
//           END RemoteXY include          //
/////////////////////////////////////////////


int16_t Page_No;    // 

void setup() {
RemoteXY_Init();
}

void loop() {
RemoteXY_Handler();

// get the selector position
Page_No = RemoteXY.select_1 + 1; //selector starts at 0

// display the page number (optional)
// if you are going to do this, it should really be a "text"
// object, but it really doesn't matter unless you
// inadvertantly press it.
RemoteXY.edit_1 = Page_No;

// just to simulate your code
delay(100);
}