steam_get_user_steam_id

You can use this function to return the unique Steam user id of the user currently logged into the Steam client. This is a unique 64 bit value that can be used to identify individual users and not their on screen user name (this can be found using the function steam_get_persona_name()). As this is an int64 you may need to cast it as such when using it in subsequent functions using the int64() function.

Syntax:

steam_get_user_steam_id();

Returns:

Integer (int64)

Example:

if steam_initialised()
    {
    global.u_id = steam_get_user_steam_id();
    }

The above code will set a global variable to the current users unique Steam ID if the Steam client API is correctly initialised.