[Dr. McKay]

This simple stock returns the current game's Steam AppID (or -1 on failure). This might be useful for a plugin which interfaces with the Steam Web API to get stats or the like.

PHP Code:

stock GetAppID() {
    new Handle:file = OpenFile("steam.inf");
    if(file == INVALID_HANDLE) {
        return -1;
    }
    
    decl String:line[128], String:parts[2][64];
    while(ReadFileLine(file, line, sizeof(line))) {
        ExplodeString(line, "=", parts, sizeof(parts), sizeof(parts[]));
        if(StrEqual(parts[0], "appID")) {
            CloseHandle(file);
            return StringToInt(parts[1]);
        }
    }
    
    CloseHandle(file);
    return -1;
} 


[Oshizu]

Userful stuff
Might be a new way to check what game plugin runs