how do i use my wifi dongle to contact devices and give them a command

[morphius999]

how do i write code in c++ that

1. uses my wifi dongle to contact all devices in the room

2. then tell all devices in the room to send a "cosmic ray" to "Geoffrey libs Cadbury"

NOTE: the devices in the room have AI on them that know what a "cosmic ray" means and they know who "geoffrey libs Cadbury" is

[zapshe]

To access the internet through a C++ program, I assume you'd need to use a library. You can look up such libraries that allow for that. Once you learn enough of the library, you can experiment to see how to do that.

[coder777]

The UDP protocol allows broadcast to all available devices in the net.