diff --git a/QtScrcpy/videoform.cpp b/QtScrcpy/videoform.cpp
index 4b627b9..36b17cf 100644
--- a/QtScrcpy/videoform.cpp
+++ b/QtScrcpy/videoform.cpp
@@ -136,6 +136,17 @@ void VideoForm::updateShowSize(const QSize &newSize)
     }
 }
 
+void VideoForm::switchFullScreen()
+{
+    if (isFullScreen()) {
+        showNormal();
+        ui->rightToolWidget->show();
+    } else {
+        ui->rightToolWidget->hide();
+        showFullScreen();
+    }
+}
+
 void VideoForm::mousePressEvent(QMouseEvent *event)
 {
     m_inputConvert.mouseEvent(event, ui->videoWidget->frameSize(), size());
@@ -159,6 +170,11 @@ void VideoForm::wheelEvent(QWheelEvent *event)
 
 void VideoForm::keyPressEvent(QKeyEvent *event)
 {
+    if (Qt::Key_Escape == event->key()
+            && !event->isAutoRepeat()
+            && isFullScreen()) {
+        switchFullScreen();
+    }
     //qDebug() << "keyPressEvent" << event->isAutoRepeat();
     m_inputConvert.keyEvent(event, ui->videoWidget->frameSize(), size());
 }
@@ -168,3 +184,8 @@ void VideoForm::keyReleaseEvent(QKeyEvent *event)
     //qDebug() << "keyReleaseEvent" << event->isAutoRepeat();
     m_inputConvert.keyEvent(event, ui->videoWidget->frameSize(), size());
 }
+
+void VideoForm::on_fullScrcenbtn_clicked()
+{
+    switchFullScreen();
+}
diff --git a/QtScrcpy/videoform.h b/QtScrcpy/videoform.h
index ee68b78..d4d79ba 100644
--- a/QtScrcpy/videoform.h
+++ b/QtScrcpy/videoform.h
@@ -23,6 +23,7 @@ public:
 
 private:
     void updateShowSize(const QSize &newSize);
+    void switchFullScreen();
 
 protected:
     void mousePressEvent(QMouseEvent *event);
@@ -32,6 +33,9 @@ protected:
     void keyPressEvent(QKeyEvent *event);
     void keyReleaseEvent(QKeyEvent *event);
 
+private slots:
+    void on_fullScrcenbtn_clicked();
+
 private:
     Ui::videoForm *ui;
     QSize frameSize;
diff --git a/QtScrcpy/videoform.ui b/QtScrcpy/videoform.ui
index cce5644..b1f13eb 100644
--- a/QtScrcpy/videoform.ui
+++ b/QtScrcpy/videoform.ui
@@ -32,6 +32,44 @@
    <item>
     <widget class="QYUVOpenGLWidget" name="videoWidget" native="true"/>
    </item>
+   <item>
+    <widget class="QWidget" name="rightToolWidget" native="true">
+     <property name="minimumSize">
+      <size>
+       <width>40</width>
+       <height>0</height>
+      </size>
+     </property>
+     <property name="maximumSize">
+      <size>
+       <width>40</width>
+       <height>16777215</height>
+      </size>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <item>
+       <widget class="QPushButton" name="fullScrcenbtn">
+        <property name="text">
+         <string>F</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="verticalSpacer">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>40</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
+   </item>
   </layout>
  </widget>
  <customwidgets>