What is the main difference in Interrupt and Event mode if I am using sensor on GPIOs'.

[LACTIC]

I am using proximity sensor as Interrupt on STM32F4 board .My goal is that when the GPIO is set than Interrupt or event (which is best in both of them) is generate and work can be performed by MCU.

[LACTIC]

I am still confused about difference in Interrupt and Event mode if I am using sensor on GPIOs'.