Button_t

typedef struct _Button_t  {
    uint16_t x;                 
    uint16_t y;                 
    uint16_t w;                 
    uint16_t h;                 
    uint8_t value;              
    uint8_t last_value;         
    uint32_t last_press_time;   
    uint32_t long_press_time;   
    uint8_t state;              
    struct _Button_t* next;     
} Button_t;

The member defintions of the virtual button data.

This structure can be used to define virtual buttons bounded by rectangular areas of the touch screen.