Re: Can anyone tell me how this is done?
Your IP address will be in the IP packet. The user agent field of an HTTP header will state exactly what OS you are running and which browser. Your ISP can be obtained using the IP address.
Very simple. The web cannot work without this information. All it shows is someone is aware how to dissect an HTTP request via a TCP/IP packet.
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Code:
glBegin(GL_TRIANGLES);
drawWorld();
glEnd();
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