diff --git a/src/inputcontrol/inputconvertgame.cpp b/src/inputcontrol/inputconvertgame.cpp
index 1b9516e..fb8f1e1 100644
--- a/src/inputcontrol/inputconvertgame.cpp
+++ b/src/inputcontrol/inputconvertgame.cpp
@@ -15,42 +15,60 @@ InputConvertGame::~InputConvertGame()
 
 void InputConvertGame::mouseEvent(const QMouseEvent *from, const QSize &frameSize, const QSize &showSize)
 {
-    updateSize(frameSize, showSize);
+    if (m_gameMap) {
+        updateSize(frameSize, showSize);
 
-    // mouse move
-    if (processMouseMove(from)) {
-        return;
-    }
+        // mouse move
+        if (processMouseMove(from)) {
+            return;
+        }
 
-    // mouse click
-    if (processMouseClick(from)) {
-        return;
+        // mouse click
+        if (processMouseClick(from)) {
+            return;
+        }
+    } else {
+        InputConvertNormal::mouseEvent(from, frameSize, showSize);
     }
-    return;
 }
 
 void InputConvertGame::wheelEvent(const QWheelEvent *from, const QSize &frameSize, const QSize &showSize)
 {
-    Q_UNUSED(from);
-    updateSize(frameSize, showSize);
+    if (m_gameMap) {
+        updateSize(frameSize, showSize);
+    } else {
+        InputConvertNormal::wheelEvent(from, frameSize, showSize);
+    }
 }
 
 void InputConvertGame::keyEvent(const QKeyEvent *from, const QSize& frameSize, const QSize& showSize)
 {
-    updateSize(frameSize, showSize);
-    if (!from || from->isAutoRepeat()) {
+    switch (from->key()) {
+    case Qt::Key_QuoteLeft:
+        if (QEvent::KeyPress == from->type()) {
+            m_gameMap = !m_gameMap;
+        }
         return;
     }
 
-    // steer wheel
-    if (isSteerWheelKeys(from)) {
-        processSteerWheel(from);
-        return;
-    }
+    if (m_gameMap) {
+        updateSize(frameSize, showSize);
+        if (!from || from->isAutoRepeat()) {
+            return;
+        }
 
-    // key click
-    if (processKeyClick(from)) {
-        return;
+        // steer wheel
+        if (isSteerWheelKeys(from)) {
+            processSteerWheel(from);
+            return;
+        }
+
+        // key click
+        if (processKeyClick(from)) {
+            return;
+        }
+    } else {
+        InputConvertNormal::keyEvent(from, frameSize, showSize);
     }
 }
 
diff --git a/src/inputcontrol/inputconvertgame.h b/src/inputcontrol/inputconvertgame.h
index d245f71..c20d7b2 100644
--- a/src/inputcontrol/inputconvertgame.h
+++ b/src/inputcontrol/inputconvertgame.h
@@ -2,19 +2,19 @@
 #define INPUTCONVERTGAME_H
 
 #include <QPointF>
-#include "inputconvertbase.h"
+#include "inputconvertnormal.h"
 
 #define MULTI_TOUCH_MAX_NUM 10
-class InputConvertGame : public QObject, public InputConvertBase
+class InputConvertGame : public QObject, public InputConvertNormal
 {
     Q_OBJECT
 public:
     InputConvertGame(QObject* parent = Q_NULLPTR);
     virtual ~InputConvertGame();
 
-    void mouseEvent(const QMouseEvent* from, const QSize& frameSize, const QSize& showSize);
-    void wheelEvent(const QWheelEvent* from, const QSize& frameSize, const QSize& showSize);
-    void keyEvent(const QKeyEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void mouseEvent(const QMouseEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void wheelEvent(const QWheelEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void keyEvent(const QKeyEvent* from, const QSize& frameSize, const QSize& showSize);
 
 protected:
     void updateSize(const QSize& frameSize, const QSize& showSize);
@@ -61,6 +61,7 @@ private:
 private:
     QSize m_frameSize;
     QSize m_showSize;
+    bool m_gameMap = false;
 
     int multiTouchID[MULTI_TOUCH_MAX_NUM] = { 0 };
 
diff --git a/src/inputcontrol/inputconvertnormal.h b/src/inputcontrol/inputconvertnormal.h
index fcb517f..fb34595 100644
--- a/src/inputcontrol/inputconvertnormal.h
+++ b/src/inputcontrol/inputconvertnormal.h
@@ -9,9 +9,9 @@ public:
     InputConvertNormal();
     virtual ~InputConvertNormal();
 
-    void mouseEvent(const QMouseEvent* from, const QSize& frameSize, const QSize& showSize);
-    void wheelEvent(const QWheelEvent* from, const QSize& frameSize, const QSize& showSize);
-    void keyEvent(const QKeyEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void mouseEvent(const QMouseEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void wheelEvent(const QWheelEvent* from, const QSize& frameSize, const QSize& showSize);
+    virtual void keyEvent(const QKeyEvent* from, const QSize& frameSize, const QSize& showSize);
 
 private:
     AndroidMotioneventButtons convertMouseButtons(Qt::MouseButtons buttonState);