ini_open_protect.gml

function ini_open_protect(argument0)
{
var file
var file_size
var pointer
var _byte

	global._ini_name = argument0;

	if file_exists(global._ini_name) //if the file exists, decrypt
	{
	file = file_bin_open(global._ini_name, 2);
	file_size = file_bin_size(file);
    
	    for (pointer = 0; pointer < file_size; pointer++)
	    {
	    file_bin_seek(file,file_size-pointer-1);
	    _byte[pointer] = abs(file_bin_read_byte(file)-256);
	    }
    
	    file_bin_rewrite(file);
    
	    for (pointer = 0; pointer < file_size; pointer++)
	    {
	    file_bin_seek(file,pointer);
	    file_bin_write_byte(file,_byte[pointer]);
	    }
    
	file_bin_close(file);
	}

	ini_open(global._ini_name);
}