CreateConsoleScreenBuffer

[DllImport("Kernel32.dll", SetLastError = true)][return: MarshalAs(UnmanagedType.Bool)]
public static extern IntPtr CreateConsoleScreenBuffer(
   uint dwDesiredAccess,
   uint dwShareMode,
   IntPtr lpSecurityAttributes,
   uint dwFlags,
   IntPtr lpScreenBufferData
);

Microsoft documentation: Link