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how can i get the ipv4 address of a device (windows/ios/android) i dont see any command for it. I just want to implement a multiplayer lan for my game but i dont know how to get the ipv4 addres of device to attach it it to a variable any ideas?
You can use a PHP script and a webserver that will let you store or echo back your public IP address.
Other than that, I'm pretty sure the network example for GMS includes a broadcast server that just broadcasts the IP of the server to any potential clients, so there wouldn't be much need for showing or storing your LAN IP.