Hi. everyone , how can i make GUI Button for my 4-Led LED control lights?

 tft.fillRoundRect(60, 100, 360, 40, 8, RED);
  tft.drawRoundRect(60, 100, 360, 40, 8, WHITE); 
tft.setCursor(165, 115);
  tft.print("LED ON-OFF");                       -- GUI button LED 

 digitalWrite(13, HIGH);
  TSPoint p = ts.getPoint();
  digitalWrite(13, LOW);
  
  buttonEnabled = true;
  
  pinMode(XM, OUTPUT);
  pinMode(YP, OUTPUT);
 
      if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {
               
          //map(value, fromLow, fromHigh, toLow, toHigh)
          p.x = map( p.x, TS_MINX, TS_MAXX,0,  480 );
          p.y = map( p.y, TS_MINY, TS_MAXY, 0, 320 );                 

          if(p.x>60 && p.x<400 && p.y>100 && p.y<120 )   


1. Here i am create simple GUI Button for my LED ON/OFF button.
2.  if(p.x>60 && p.x<400 && p.y>100 && p.y<120 ) using this calibration condition my button not working ? 
3. how can i solve my 3.5 TFT ILI9486 display issue?  
4. How can i find MINX and MINY value? 
    for that i test simple demo using <touchscreen demo> and <touchscreenshiled> example. but calibration not working ?

I'd start here:
GUIslice - Arduino Reference

Posting a schematic not a frizzy thing would help. Then explain what you want to accomplish.

really , i did not know about it.