Setcurrentconsolefontex

[DllImport("Kernel32.dll", SetLastError = true)][return: MarshalAs(UnmanagedType.Bool)]
public static extern bool SetCurrentConsoleFontEx(IntPtr hConsoleOutput,
   bool bMaximumWindow,
   ref CONSOLE_FONT_INFO_EX lpConsoleCurrentFontEx
);

Microsoft documentation: Link