Add cancelable RenderHandEvent.

src/main/java/net/minecraftforge/client/ForgeHooksClient.java

@@ -1,6 +1,7 @@
 package net.minecraftforge.client;
 
 import java.util.Random;
+
 import javax.imageio.ImageIO;
 
 import net.minecraftforge.client.event.MouseEvent;
@@ -44,6 +45,7 @@ import net.minecraft.client.renderer.texture.TextureMap;
 import net.minecraft.client.settings.GameSettings;
 import net.minecraftforge.client.IItemRenderer.ItemRenderType;
 import net.minecraftforge.client.event.DrawBlockHighlightEvent;
+import net.minecraftforge.client.event.RenderHandEvent;
 import net.minecraftforge.client.event.RenderWorldLastEvent;
 import net.minecraftforge.client.event.TextureStitchEvent;
 import net.minecraftforge.common.ForgeModContainer;
@@ -251,6 +253,11 @@ public class ForgeHooksClient
         MinecraftForge.EVENT_BUS.post(new RenderWorldLastEvent(context, partialTicks));
     }
 
+    public static boolean renderFirstPersonHand(RenderGlobal context, float partialTicks, int renderPass)
+    {
+        return MinecraftForge.EVENT_BUS.post(new RenderHandEvent(context, partialTicks, renderPass));
+    }
+
     public static void onTextureStitchedPre(TextureMap map)
     {
         MinecraftForge.EVENT_BUS.post(new TextureStitchEvent.Pre(map));

src/main/java/net/minecraftforge/client/event/RenderHandEvent.java

@@ -0,0 +1,19 @@
+package net.minecraftforge.client.event;
+
+import cpw.mods.fml.common.eventhandler.Cancelable;
+import cpw.mods.fml.common.eventhandler.Event;
+import net.minecraft.client.renderer.RenderGlobal;
+
+@Cancelable
+public class RenderHandEvent extends Event
+{
+    public final RenderGlobal context;
+    public final float partialTicks;
+    public final int renderPass;
+    public RenderHandEvent(RenderGlobal context, float partialTicks, int renderPass)
+    {
+        this.context = context;
+        this.partialTicks = partialTicks;
+        this.renderPass = renderPass;
+    }
+}