I managed to load configs from a config file. But i can't seem to find where to add the save part to. If i add it to the keypress, it crashes the game. If i add it to the toggleenabled function called by the keypress it crashes the game. I have no gui, other than the keybindings added to Controls.

 

Here is the code i've been trying to use to save the configs.

Configuration config = new Configuration();
    		config.load();
    		Property p;
    		config.addCustomCategoryComment(Configuration.CATEGORY_GENERAL, "Allows you to Enable or Disable the display of Coordinates.");
    		p = config.get(Configuration.CATEGORY_GENERAL, "Enable/Disable", true);
    	    p.comment = "Enable/Disable display of coordinates";
    	    
    	    p.set(EventManager.Enabled);
    	    config.save();

Well this is my preInit

@EventHandler
public void preInit(FMLPreInitializationEvent event){
	FMLCommonHandler.instance().bus().register(new com.datacraftcoords.KeyInputHandler());
	com.datacraftcoords.KeyBindings.init();
	Configuration config = new Configuration(event.getSuggestedConfigurationFile());

        config.load();
        EventManager.Enabled = config.get(Configuration.CATEGORY_GENERAL, "Enabled", false).getBoolean(true);

        config.save();
}

 

How would i save the config after the state of EventManager.Enabled has changed?

Just in case someone else runs into this issue, here's the code i used to solve it with a little help from diesieben07.

 

This goes in your Mod loader code. The preInit, Init, postInit section.

private File configFile;

@EventHandler
public void preInit(FMLPreInitializationEvent event){
	FMLCommonHandler.instance().bus().register(new KeyInputHandler());
	KeyBindings.init();

	configFile = event.getSuggestedConfigurationFile();
	Configs.LoadConfigSettings(configFile);

 

Next create a new class and paste this code in.

package com.datacraftcoords;
import java.io.File;

import com.datacraftcoords.event.EventManager;

import net.minecraftforge.common.config.Configuration;
import net.minecraftforge.common.config.Property;


public class Configs {
public static final String CATEGORY_GENERAL = "general";
public static Configuration config = null;
public static void LoadConfigSettings(File configFile)
    {
    	ReadConfigSettings(configFile, true);
    }
public static void SaveConfigSettings()
    {
    	ReadConfigSettings(null, false);
    }
    
    /**
     * Creates the config file if it doesn't already exist.
     * It loads/saves config values from/to the config file.
     * @param configFile Standard Forge configuration file
     * @param loadSettings set to true to load the settings from the config file, 
     * or false to save the settings to the config file
     */
    private static void ReadConfigSettings(File configFile, boolean loadSettings)
    {
    	//NOTE: doing config.save() multiple times will bug out and add additional quotes to
    	//categories with more than 1 word
    	//Configuration config = null;
    	if(loadSettings)
    	{
            config = new Configuration(configFile);
            config.load();
    	}
        
        Property p;
        config.addCustomCategoryComment(CATEGORY_GENERAL, "Allows you to Enable or Disable the display of Coordinates.");
	p = config.get(CATEGORY_GENERAL, "Enabled", true);
    p.comment = "Enable/Disable display of coordinates";
    
    p.set(EventManager.Enabled);
    config.save();
    }
}

 

Next add this where you want to save your configs.

Configs.SaveConfigSettings();