What happens if I call Start() two times on class System.Windows.Forms.Timer?

Question

Imagine that I have a System.Windows.Forms.Timer with 1000 ms interval.

If I call Timer.Start() method and after 500 ms I call again Timer.Start() what happens? The second Start call will reset the interval or not? Are there any side effects?

Answer 1

The timer is already started, so a second call will not affect it.

Regardless, this is easy to test.

Answer 2

Start() just sets the Enabled property to true. If the Enabled property is already set to true it just sets Enabled to true again and keeps going.

Likewise, Stop() sets Enabled to false.