diff --git a/src/main/java/com/ohualtex/autoclicker/AutoClicker.java b/src/main/java/com/ohualtex/autoclicker/AutoClicker.java
index 806babe..8f784d0 100644
--- a/src/main/java/com/ohualtex/autoclicker/AutoClicker.java
+++ b/src/main/java/com/ohualtex/autoclicker/AutoClicker.java
@@ -27,8 +27,6 @@
 import java.awt.*;
 import java.awt.event.*;
 import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
 import java.util.Properties;
 import java.util.Random;
 import java.util.logging.Level;
@@ -303,7 +301,9 @@ private void applyThemeAndFont(boolean isDark, int fontSize, Color fgColor) {
                 statusLabel.setFont(new Font("Segoe UI", Font.BOLD, fontSize + 8));
                 statusLabel.setForeground(isRunning ? new Color(90, 255, 90) : new Color(255, 90, 90));
             }
-        } catch (Exception ex) { ex.printStackTrace(); }
+        } catch (Exception ex) {
+            System.err.println("[AutoClicker] Tema/font uygulanamadi: " + ex.getMessage());
+        }
     }
 
     private void loadConfig() {
@@ -885,14 +885,19 @@ public void keyPressed(KeyEvent ev) {
                 int mask = InputEvent.BUTTON1_DOWN_MASK;
                 if(mIdx==1) mask = InputEvent.BUTTON3_DOWN_MASK;
                 else if(mIdx==2) mask = InputEvent.BUTTON2_DOWN_MASK;
-                else if(mIdx==3) mask = 999;
+                else if(mIdx==3) mask = MacroAction.DOUBLE_CLICK;
                 chainModel.addElement(new MacroAction(ActionType.MOUSE_CLICK, mask, 0));
             } else if(t==1) {
                 chainModel.addElement(new MacroAction(ActionType.KEY_PRESS, selectedActKey[0], 0));
             } else if(t==2) {
                 chainModel.addElement(new MacroAction(ActionType.MOUSE_MOVE, macroTempPt.x, macroTempPt.y));
             } else if(t==3) {
-                try { chainModel.addElement(new MacroAction(ActionType.DELAY, Integer.parseInt(delayField.getText()), 0)); } catch(Exception ex) {}
+                try {
+                    chainModel.addElement(new MacroAction(ActionType.DELAY, Integer.parseInt(delayField.getText().trim()), 0));
+                } catch (Exception ex) {
+                    Toolkit.getDefaultToolkit().beep(); // gecersiz sayi: sessizce yutma, kullaniciya bildir
+                    return;
+                }
             }
             dialog.dispose();
         });
@@ -1126,7 +1131,16 @@ private void initJNativeHook() {
             GlobalScreen.registerNativeHook();
             GlobalScreen.addNativeKeyListener(this);
             GlobalScreen.addNativeMouseListener(this);
-        } catch (NativeHookException e) {}
+        } catch (NativeHookException e) {
+            // Kanca kurulamazsa hotkey + record calismaz; sessiz kalma, kullaniciya bildir
+            System.err.println("[AutoClicker] Global kanca (JNativeHook) kurulamadi: " + e.getMessage());
+            SwingUtilities.invokeLater(() -> {
+                if (statusLabel != null) {
+                    statusLabel.setText(Lang.get("hook_fail"));
+                    statusLabel.setForeground(new Color(255, 165, 0));
+                }
+            });
+        }
     }
 
     // Limit ayarlarinin worker thread'e gecirilecek anlik kopyasi (EDT-disi Swing erisimini onler)
@@ -1423,7 +1437,7 @@ private boolean startChainMacro() {
                 SwingUtilities.invokeLater(() -> chainList.setSelectedIndex(idx));
                 switch (action.type) {
                     case MOUSE_CLICK:
-                        if (action.p1 == 999) {
+                        if (action.p1 == MacroAction.DOUBLE_CLICK) {
                             doMouseClick(InputEvent.BUTTON1_DOWN_MASK);
                             robot.delay(40);
                             doMouseClick(InputEvent.BUTTON1_DOWN_MASK);
diff --git a/src/main/java/com/ohualtex/autoclicker/i18n/Lang.java b/src/main/java/com/ohualtex/autoclicker/i18n/Lang.java
index dee2a63..0e324a5 100644
--- a/src/main/java/com/ohualtex/autoclicker/i18n/Lang.java
+++ b/src/main/java/com/ohualtex/autoclicker/i18n/Lang.java
@@ -7,6 +7,7 @@ public final class Lang {
         d.put("st_idle", new String[]{"DURUM: BEKLIYOR", "STATUS: IDLE", "STATUS: BEREIT", "STATUT: EN ATTENTE", "STATO: IN ATTESA", "СТАТУС: ОЖИДАНИЕ"});
         d.put("st_run", new String[]{"DURUM: CALISIYOR", "STATUS: RUNNING", "STATUS: LÄUFT", "STATUT: EN COURS", "STATO: IN ESECUZIONE", "СТАТУС: РАБОТАЕТ"});
         d.put("st_lim", new String[]{"DURUM: LIMIT YENDI", "STATUS: LIMIT HIT", "STATUS: LIMIT ERREICHT", "STATUT: LIMITE", "STATO: LIMITE RAGGIUNTO", "СТАТУС: ЛИМИТ"});
+        d.put("hook_fail", new String[]{"DURUM: KISAYOL DINLENEMIYOR", "STATUS: HOTKEY UNAVAILABLE", "STATUS: HOTKEY NICHT VERFUGBAR", "STATUT: RACCOURCI INDISPONIBLE", "STATO: HOTKEY NON DISPONIBILE", "СТАТУС: ГОРЯЧАЯ КЛАВИША НЕДОСТУПНА"});
         
         d.put("t_mouse", new String[]{"Fare", "Mouse", "Maus", "Souris", "Mouse", "Мышь"});
         d.put("t_key", new String[]{"Klavye", "Keyboard", "Tastatur", "Clavier", "Tastiera", "Клавиатура"});
diff --git a/src/main/java/com/ohualtex/autoclicker/model/MacroAction.java b/src/main/java/com/ohualtex/autoclicker/model/MacroAction.java
index b264454..deee6d1 100644
--- a/src/main/java/com/ohualtex/autoclicker/model/MacroAction.java
+++ b/src/main/java/com/ohualtex/autoclicker/model/MacroAction.java
@@ -7,6 +7,9 @@
 
 /** Zincir makrosundaki tek bir adim (tur + iki parametre). Listede toString ile gosterilir, serialize ile saklanir. */
 public class MacroAction {
+    /** MOUSE_CLICK adiminda p1 bu degerse "cift sol tik" demektir (sentinel/isaret degeri). */
+    public static final int DOUBLE_CLICK = 999;
+
     public ActionType type;
     public int p1, p2;
 
@@ -14,7 +17,7 @@ public class MacroAction {
 
     public String toString() {
         switch(type) {
-            case MOUSE_CLICK: return Lang.get("tnt_mouse") + ": " + (p1==InputEvent.BUTTON1_DOWN_MASK ? Lang.get("l_click") : p1==InputEvent.BUTTON3_DOWN_MASK ? Lang.get("r_click") : p1==999 ? Lang.get("d_click") : Lang.get("m_click"));
+            case MOUSE_CLICK: return Lang.get("tnt_mouse") + ": " + (p1==InputEvent.BUTTON1_DOWN_MASK ? Lang.get("l_click") : p1==InputEvent.BUTTON3_DOWN_MASK ? Lang.get("r_click") : p1==DOUBLE_CLICK ? Lang.get("d_click") : Lang.get("m_click"));
             case KEY_PRESS: return Lang.get("tnt_key") + ": " + KeyEvent.getKeyText(p1);
             case MOUSE_MOVE: return Lang.get("tnt_move") + ": X=" + p1 + ", Y=" + p2;
             case DELAY: return Lang.get("ms_delay") + " " + p1;