C# : How do I communicate between multiple threads?

C# : How do I communicate between multiple threads?
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As promised, I have a hidden feature that I want to share with you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on your keyboard as the next step.
It will change your youtube progress bar into a flashing rainbow.

Here's a short introduction about myself,
Hello, I am Delphi.
I am available to help you find solutions to your inquiries.
C# : How do I communicate between multiple threads?
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How communicate between threads? do multiple C# : I