File content as of revision 3:98e2c23d57b2:

#include "mbed.h"
#include "TS_DISCO_F469NI.h"
#include "LCD_DISCO_F469NI.h"

LCD_DISCO_F469NI lcd;
TS_DISCO_F469NI ts;

int main()
{
    TS_StateTypeDef TS_State;
    uint16_t x, y;
    uint8_t text[30];
    uint8_t status;
    uint8_t idx;
    uint8_t cleared = 0;
    uint8_t prev_nb_touches = 0;
  
    BSP_LCD_SetFont(&Font24);
  
    lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN DEMO", CENTER_MODE);
    wait(1);
  
    status = ts.Init(lcd.GetXSize(), lcd.GetYSize());
    if (status != TS_OK)
    {
      lcd.Clear(LCD_COLOR_RED);
      lcd.SetBackColor(LCD_COLOR_RED);
      lcd.SetTextColor(LCD_COLOR_WHITE);
      lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT FAIL", CENTER_MODE);
    }
    else
    {
      lcd.Clear(LCD_COLOR_GREEN);
      lcd.SetBackColor(LCD_COLOR_GREEN);
      lcd.SetTextColor(LCD_COLOR_WHITE);
      lcd.DisplayStringAt(0, LINE(5), (uint8_t *)"TOUCHSCREEN INIT OK", CENTER_MODE);      
    }

    wait(1);
    lcd.SetBackColor(LCD_COLOR_BLUE);
    lcd.SetTextColor(LCD_COLOR_WHITE);
    
    while(1)
    {
      
      ts.GetState(&TS_State);      
      if (TS_State.touchDetected)
      {
        // Clear lines corresponding to old touches coordinates
        if (TS_State.touchDetected < prev_nb_touches)
        {
          for (idx = (TS_State.touchDetected + 1); idx <= 5; idx++)
          {
            lcd.ClearStringLine(idx);
          }
        }
        prev_nb_touches = TS_State.touchDetected;
        
        cleared = 0;
        
        sprintf((char*)text, "Touches: %d", TS_State.touchDetected);
        lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
        
        for (idx = 0; idx < TS_State.touchDetected; idx++)
        {
          x = TS_State.touchX[idx];
          y = TS_State.touchY[idx];
          sprintf((char*)text, "Touch %d: x=%d y=%d    ", idx+1, x, y);
          lcd.DisplayStringAt(0, LINE(idx+1), (uint8_t *)&text, LEFT_MODE);
          lcd.FillCircle(TS_State.touchX[idx], TS_State.touchY[idx], 20);
        }
      }
      else
      {
        if (!cleared)
        {
          lcd.Clear(LCD_COLOR_BLUE);
          sprintf((char*)text, "Touches: 0");
          lcd.DisplayStringAt(0, LINE(0), (uint8_t *)&text, LEFT_MODE);
          cleared = 1;
        }
      }
    }
}