diff --git a/src/main/java/net/minecraft/client/gui/GuiScreen.java b/src/main/java/net/minecraft/client/gui/GuiScreen.java
index 8e095a7..0f4fe3a 100644
--- a/src/main/java/net/minecraft/client/gui/GuiScreen.java
+++ b/src/main/java/net/minecraft/client/gui/GuiScreen.java
@@ -17,6 +17,10 @@
 import net.minecraft.client.renderer.entity.RenderItem;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.EnumChatFormatting;
+import net.minecraftforge.client.event.GuiScreenEvent.ActionPerformedEvent;
+import net.minecraftforge.client.event.GuiScreenEvent.InitGuiEvent;
+import net.minecraftforge.common.MinecraftForge;
+
 import org.lwjgl.input.Keyboard;
 import org.lwjgl.input.Mouse;
 import org.lwjgl.opengl.GL11;
@@ -214,9 +218,14 @@
 
 				if (guibutton.mousePressed(this.mc, par1, par2))
 				{
-					this.selectedButton = guibutton;
-					guibutton.func_146113_a(this.mc.getSoundHandler());
-					this.actionPerformed(guibutton);
+					ActionPerformedEvent.Pre event = new ActionPerformedEvent.Pre(this, guibutton, this.buttonList);
+					if (MinecraftForge.EVENT_BUS.post(event))
+						break;
+					this.selectedButton = event.button;
+					event.button.func_146113_a(this.mc.getSoundHandler());
+					this.actionPerformed(event.button);
+					if (this.mc.currentScreen.equals(this))
+						MinecraftForge.EVENT_BUS.post(new ActionPerformedEvent.Post(this, event.button, this.buttonList));
 				}
 			}
 		}
@@ -241,8 +250,12 @@
 		this.fontRendererObj = p_146280_1_.fontRenderer;
 		this.width = p_146280_2_;
 		this.height = p_146280_3_;
-		this.buttonList.clear();
-		this.initGui();
+		if (!MinecraftForge.EVENT_BUS.post(new InitGuiEvent.Pre(this, this.buttonList)))
+		{
+			this.buttonList.clear();
+			this.initGui();
+		}
+		MinecraftForge.EVENT_BUS.post(new InitGuiEvent.Post(this, this.buttonList));
 	}
 
 	public void initGui() {}
diff --git a/src/main/java/net/minecraft/client/renderer/EntityRenderer.java b/src/main/java/net/minecraft/client/renderer/EntityRenderer.java
index 38c9f18..b6530ca 100644
--- a/src/main/java/net/minecraft/client/renderer/EntityRenderer.java
+++ b/src/main/java/net/minecraft/client/renderer/EntityRenderer.java
@@ -54,6 +54,7 @@
 import net.minecraftforge.client.ForgeHooksClient;
 import net.minecraftforge.client.IRenderHandler;
 import net.minecraftforge.client.event.DrawBlockHighlightEvent;
+import net.minecraftforge.client.event.GuiScreenEvent.DrawScreenEvent;
 import net.minecraftforge.client.event.RenderWorldLastEvent;
 import net.minecraftforge.common.MinecraftForge;
 
@@ -1056,7 +1057,9 @@
 
 				try
 				{
-					this.mc.currentScreen.drawScreen(k, l, par1);
+					if (!MinecraftForge.EVENT_BUS.post(new DrawScreenEvent.Pre(this.mc.currentScreen, k, l, par1)))
+						this.mc.currentScreen.drawScreen(k, l, par1);
+					MinecraftForge.EVENT_BUS.post(new DrawScreenEvent.Post(this.mc.currentScreen, k, l, par1));
 				}
 				catch (Throwable throwable)
 				{
diff --git a/src/main/java/net/minecraftforge/client/GuiIngameForge.java b/src/main/java/net/minecraftforge/client/GuiIngameForge.java
index d82c02e..5e03bab 100644
--- a/src/main/java/net/minecraftforge/client/GuiIngameForge.java
+++ b/src/main/java/net/minecraftforge/client/GuiIngameForge.java
@@ -630,7 +630,7 @@
 		}
 
 
-		if (this.mc.gameSettings.showDebugInfo)
+		if (this.mc.gameSettings.showDebugInfo && !pre(DEBUG))
 		{
 			mc.mcProfiler.startSection("debug");
 			GL11.glPushMatrix();
@@ -688,6 +688,7 @@
 			}
 			GL11.glPopMatrix();
 			mc.mcProfiler.endSection();
+			post(DEBUG);
 		}
 
 		RenderGameOverlayEvent.Text event = new RenderGameOverlayEvent.Text(eventParent, left, right);
diff --git a/src/main/java/net/minecraftforge/client/event/GuiScreenEvent.java b/src/main/java/net/minecraftforge/client/event/GuiScreenEvent.java
new file mode 100644
index 0000000..d475a98
--- /dev/null
+++ b/src/main/java/net/minecraftforge/client/event/GuiScreenEvent.java
@@ -0,0 +1,179 @@
+package net.minecraftforge.client.event;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import net.minecraft.client.gui.GuiButton;
+import net.minecraft.client.gui.GuiScreen;
+import cpw.mods.fml.common.eventhandler.Cancelable;
+import cpw.mods.fml.common.eventhandler.Event;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
+/**
+ * Event classes for GuiScreen events.
+ * 
+ * @author bspkrs
+ */
+@SideOnly(Side.CLIENT)
+public class GuiScreenEvent extends Event 
+{
+	/**
+	 * The GuiScreen object generating this event.
+	 */
+	public final GuiScreen gui;
+	
+	public GuiScreenEvent(GuiScreen gui)
+	{
+		this.gui = gui;
+	}
+
+	public static class InitGuiEvent extends GuiScreenEvent
+	{
+		/**
+		 * The {@code buttonList} field from the GuiScreen object referenced by {@code gui}.
+		 */
+		public List buttonList;
+		
+		public InitGuiEvent(GuiScreen gui, List buttonList)
+		{
+			super(gui);
+			this.buttonList = buttonList;
+		}
+		
+		/**
+		 * This event fires just after initializing {@code GuiScreen.mc}, {@code GuiScreen.fontRendererObj}, 
+		 * {@code GuiScreen.width}, and {@code GuiScreen.height}, and just before calling {@code GuiScreen.buttonList.clear()} 
+		 * and {@code GuiScreen.initGui()}. To skip or override a screen's initGui() method cancel the event.<br/><br/>
+		 * 
+		 * If canceled the following lines are skipped in {@code GuiScreen.setWorldAndResolution()}:<br/>
+		 * {@code this.buttonList.clear();}<br/>
+		 * {@code this.initGui();}<br/>
+		 * 
+		 * @author bspkrs
+		 */
+		@Cancelable
+		public static class Pre extends InitGuiEvent
+		{
+			public Pre(GuiScreen gui, List buttonList)
+			{
+				super(gui, buttonList);
+			}
+		}
+		
+		/**
+		 * This event fires right after {@code GuiScreen.initGui()}.
+		 * This is a good place to alter a GuiScreen's component layout if desired.
+		 * 
+		 * @author bspkrs
+		 */
+		public static class Post extends InitGuiEvent
+		{
+			public Post(GuiScreen gui, List buttonList)
+			{
+				super(gui, buttonList);
+			}
+		}
+	}
+	
+	public static class DrawScreenEvent extends GuiScreenEvent
+	{
+		/**
+		 * The x coordinate of the mouse pointer on the screen.
+		 */
+		public final int mouseX;
+		/**
+		 * The y coordinate of the mouse pointer on the screen.
+		 */
+		public final int mouseY;
+		/**
+		 * Partial render ticks elapsed.
+		 */
+		public final float renderPartialTicks;
+
+		public DrawScreenEvent(GuiScreen gui, int mouseX, int mouseY, float renderPartialTicks)
+		{
+			super(gui);
+			this.mouseX = mouseX;
+			this.mouseY = mouseY;
+			this.renderPartialTicks = renderPartialTicks;
+		}
+		
+		/**
+		 * This event fires just before {@code GuiScreen.drawScreen()} is called.
+		 * Cancel this event to skip {@code GuiScreen.drawScreen()}.
+		 * 
+		 * @author bspkrs
+		 */
+		@Cancelable
+		public static class Pre extends DrawScreenEvent
+		{
+			public Pre(GuiScreen gui, int mouseX, int mouseY, float renderPartialTicks)
+			{
+				super(gui, mouseX, mouseY, renderPartialTicks);
+			}
+		}
+
+		/**
+		 * This event fires just after {@code GuiScreen.drawScreen()} is called.
+		 * 
+		 * @author bspkrs
+		 */
+		public static class Post extends DrawScreenEvent
+		{
+			public Post(GuiScreen gui, int mouseX, int mouseY, float renderPartialTicks)
+			{
+				super(gui, mouseX, mouseY, renderPartialTicks);
+			}
+		}
+	}
+	
+	public static class ActionPerformedEvent extends GuiScreenEvent
+	{
+		/**
+		 * The button that was clicked.
+		 */
+		public GuiButton button;
+		/**
+		 * A COPY of the {@code buttonList} field from the GuiScreen referenced by {@code gui}.
+		 */
+		public List buttonList;
+
+		public ActionPerformedEvent(GuiScreen gui, GuiButton button, List buttonList)
+		{
+			super(gui);
+			this.button = button;
+			this.buttonList = new ArrayList(buttonList);
+		}
+		
+		/**
+		 * This event fires once it has been determined that a GuiButton object has been clicked.
+		 * Cancel this event to bypass {@code GuiScreen.actionPerformed()}.
+		 * Replace button with a different button from buttonList to have that button's action executed.
+		 * 
+		 * @author bspkrs
+		 */
+		@Cancelable
+		public static class Pre extends ActionPerformedEvent
+		{
+			public Pre(GuiScreen gui, GuiButton button, List buttonList)
+			{
+				super(gui, button, buttonList);
+			}
+		}
+		
+		/**
+		 * This event fires after {@code GuiScreen.actionPerformed()} provided that the active 
+		 * screen has not been changed as a result of {@code GuiScreen.actionPerformed()}.
+		 * 
+		 * @author bspkrs
+		 */
+		public static class Post extends ActionPerformedEvent
+		{
+			public Post(GuiScreen gui, GuiButton button, List buttonList)
+			{
+				super(gui, button, buttonList);
+			}
+		}
+	}
+}
diff --git a/src/main/java/net/minecraftforge/client/event/RenderGameOverlayEvent.java b/src/main/java/net/minecraftforge/client/event/RenderGameOverlayEvent.java
index e083d32..79a2df0 100644
--- a/src/main/java/net/minecraftforge/client/event/RenderGameOverlayEvent.java
+++ b/src/main/java/net/minecraftforge/client/event/RenderGameOverlayEvent.java
@@ -27,7 +27,8 @@
 		HEALTHMOUNT,
 		JUMPBAR,
 		CHAT,
-		PLAYER_LIST
+		PLAYER_LIST,
+		DEBUG
 	}
 
 	public final float partialTicks;
diff --git a/src/main/resources/fmlversion.properties b/src/main/resources/fmlversion.properties
index 76fe9d1..9912d88 100644
--- a/src/main/resources/fmlversion.properties
+++ b/src/main/resources/fmlversion.properties
@@ -1,6 +1,6 @@
 fmlbuild.major.number=7
 fmlbuild.minor.number=2
 fmlbuild.revision.number=172
-fmlbuild.build.number=28
+fmlbuild.build.number=29
 fmlbuild.mcversion=1.7.2
 fmlbuild.mcpversion=9.03