Whenever a Replay File is being written or modified and the user is not in-game, a GuiReplaySaving is opened and asks him to wait

src/main/java/eu/crushedpixel/replaymod/gui/GuiReplaySaving.java

@@ -1,12 +1,17 @@
 package eu.crushedpixel.replaymod.gui;
 
+import net.minecraft.client.Minecraft;
 import net.minecraft.client.gui.GuiScreen;
 import net.minecraft.client.resources.I18n;
 
+import java.io.IOException;
+
 public class GuiReplaySaving extends GuiScreen {
 
     private GuiScreen waiting = null;
 
+    private final Minecraft mc = Minecraft.getMinecraft();
+
     public GuiReplaySaving(GuiScreen waiting) {
         this.waiting = waiting;
     }
@@ -23,4 +28,8 @@ public class GuiReplaySaving extends GuiScreen {
         mc.displayGuiScreen(waiting);
     }
 
+    @Override
+    protected void keyTyped(char typedChar, int keyCode) throws IOException {
+        //Ignore key inputs to disallow users from closing this GUI
+    }
 }