diff --git a/Qss.cpp b/Qss.cpp
index 395a5e0..805d09d 100644
--- a/Qss.cpp
+++ b/Qss.cpp
@@ -6,14 +6,14 @@
 #include <QPainter>
 #include <QMouseEvent>
 #include <QApplication>
-#include <QDesktopWidget>
 #include <QtMath>
 #include <QPropertyAnimation>
 #include <QParallelAnimationGroup>
 #include <QDebug>
 #include <QFile>
 #include <QSizePolicy>
-#include <QDesktopWidget>
+#include <QDesktopServices>
+#include <QScreen>
 #include "windows.h"
 #include "winuser.h"
 #include <QPropertyAnimation>
@@ -112,7 +112,7 @@ QssTtitleBar::QssTtitleBar(QWidget *parent ,
     connect(m_restoreBtn, SIGNAL(clicked()), this, SLOT(onMaxOrRestore()));
 
 
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid =  QGuiApplication::primaryScreen()->availableGeometry();
 
     setWindowFlags(windowFlags()|Qt::MSWindowsFixedSizeDialogHint);
     this->setGeometry(parent->geometry().x(),parent->geometry().y(),0,0);
@@ -178,10 +178,9 @@ void QssTtitleBar::onMaxOrRestore()
 }
 void QssTtitleBar::paintEvent(QPaintEvent *)
 {
-    QStyleOption opt;
-    opt.init(this);
+    QStyleOption opt();
     QPainter p(this);
-    style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
+    // style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
 }
 
 void QssTtitleBar::mouseMoveEvent( QMouseEvent * ev )
@@ -267,8 +266,7 @@ void QssMainWindow::OnMaxOrRestore(bool max)
         this->m_frame->setMinimumSize(0, 0);
         this->m_frame->setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 
-        QDesktopWidget desktop;
-        QRect rc = desktop.availableGeometry(-1);
+        QRect rc =  QGuiApplication::primaryScreen()->availableGeometry();
 
         parentWidget()->setGeometry(rc);
         rc.setRight(rc.right() - 50);
@@ -316,7 +314,7 @@ QssMainWindow::QssMainWindow(QWidget *parent/* = 0*/, Qt::WindowFlags flags/* =
   m_tray_on(false)
 {
     QEvent::registerEventType();
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid = QGuiApplication::primaryScreen()->availableGeometry();
     m_frame = new QFrame(parent, flags);
     m_frame->setObjectName("window");
 
@@ -332,7 +330,6 @@ QssMainWindow::QssMainWindow(QWidget *parent/* = 0*/, Qt::WindowFlags flags/* =
     m_titleBar->SetMainWindow(this);
     QVBoxLayout* vbox = new QVBoxLayout(m_frame);
     vbox->addWidget(m_titleBar);
-    vbox->setMargin(1);
     vbox->setSpacing(0);
     vbox->addWidget(this);
 
@@ -354,18 +351,7 @@ QssMainWindow::QssMainWindow(QWidget *parent/* = 0*/, Qt::WindowFlags flags/* =
     mShadowMask->setStyleSheet("QWidget{background-color:rgba(1,1,1,0.3);}");
     mShadowMask->hide();
 
-    int screenNum =  qApp->desktop()->screenNumber(this);
-    mCurrentScreen = qApp->screens().at(screenNum);
-    if(nullptr != mCurrentScreen){
-        connect(mCurrentScreen,
-                SIGNAL(physicalDotsPerInchChanged(qreal)),
-                this,SLOT(PhisycalDpiChange(qreal)));
 
-        connect(mCurrentScreen,
-                SIGNAL(logicalDotsPerInchChanged(qreal)),
-                this,SLOT(LogicalDpiChange(qreal)));
-    }
-    detectDpi();
     return;
 }
 
@@ -406,16 +392,7 @@ void QssMainWindow::RangeObject()
     rangeObjectList(m_frame,0);
 }
 
-void QssMainWindow::DetectDpiChange()
-{
-    int screenNum =  qApp->desktop()->screenNumber(this);
-    auto currentScreen = qApp->screens().at(screenNum);
 
-    if(currentScreen != mCurrentScreen){
-        qDebug()<<"dpi change,reason screen changed";
-        mCurrentScreen = currentScreen;
-    }
-}
 
 void QssMainWindow::ShowMask()
 {
@@ -883,7 +860,7 @@ bool QssMainWindow::eventFilter(QObject * obj, QEvent * ev){
         }
     }
     if(QEvent::Resize == ev->type()){
-        QDesktopWidget desktop;
+
     }
     if(QEvent::Close == ev->type()){
         qDebug()<<"close";
@@ -944,7 +921,7 @@ QssDialog::QssDialog(QWidget *parent)
     m_parent(parent),
     m_mousePressedInBorder(false)
 {
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid = QGuiApplication::primaryScreen()->availableGeometry();
 
     m_frame = new QFrame(parent);
     m_frame->setObjectName("dialog");//css
@@ -957,7 +934,6 @@ QssDialog::QssDialog(QWidget *parent)
     m_titleBar->installEventFilter(this);
 
     QVBoxLayout* vbox = new QVBoxLayout(m_frame);
-    vbox->setMargin(0);
     vbox->setSpacing(0);
     vbox->addWidget(m_titleBar);
     vbox->addWidget(this);
@@ -987,6 +963,7 @@ void QssDialog::HideMask()
 
 void QssDialog::show()
 {
+
     /** resize m_framem_framesizehint */
     int offset = (QSSDIALOG_SHADOW_WIDTH + QSSDIALOG_BODER_WIDTH)*2;
     m_frame->resize(rect().width() + offset, rect().height() + m_titleBar->rect().height() + offset);
@@ -997,7 +974,6 @@ void QssDialog::show()
 
 void QssDockWidget::paintEvent(QPaintEvent *){
     QStyleOption opt;
-    opt.init(this);
     QPainter p(this);
     style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
 }
@@ -1330,7 +1306,7 @@ QssMessageBox::QssMessageBox( Icon icon, const QString &title, const QString &te
                               Qt::WindowFlags flags /*= Qt::Widget | Qt::FramelessWindowHint*/ )
 :QMessageBox(icon, title, text, buttons, 0, flags),m_parent(parent)
 {
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid = QGuiApplication::primaryScreen()->availableGeometry();
 
     m_frame = new QFrame;
     m_frame->setObjectName("messagebox");//css
@@ -1350,7 +1326,7 @@ QssMessageBox::QssMessageBox( Icon icon, const QString &title, const QString &te
     m_titleBar->setIcon(style()->standardIcon((QStyle::StandardPixmap)(icon + 8)));
 
     QVBoxLayout* vbox = new QVBoxLayout(m_frame);
-    vbox->setMargin(0);
+//    vbox->setMargin(0);
     vbox->setSpacing(0);
     vbox->addWidget(m_titleBar);
     vbox->addWidget(this);
@@ -1361,7 +1337,7 @@ QssMessageBox::QssMessageBox( Icon icon, const QString &title, const QString &te
 QssMessageBox::QssMessageBox( QWidget *parent /*= 0*/ )
 :QMessageBox(parent),m_parent(parent)
 {
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid = QGuiApplication::primaryScreen()->availableGeometry();
 
     m_frame = new QFrame;
     m_frame->setObjectName("messagebox");//css
@@ -1374,7 +1350,7 @@ QssMessageBox::QssMessageBox( QWidget *parent /*= 0*/ )
     m_titleBar->installEventFilter(this);
 
     QVBoxLayout* vbox = new QVBoxLayout(m_frame);
-    vbox->setMargin(0);
+//    vbox->setMargin(0);
     vbox->setSpacing(0);
     vbox->addWidget(m_titleBar);
     vbox->addWidget(this);
@@ -1688,7 +1664,7 @@ QssDockWidget::QssDockWidget(QWidget *parent)
       m_parent(parent),
     m_mousePressedInBorder(false)
 {
-    m_rcValid = QApplication::desktop()->availableGeometry();
+    m_rcValid = QGuiApplication::primaryScreen()->availableGeometry();
 
     m_frame = new QFrame(parent);
     m_frame->setObjectName("dialog");//css
@@ -1701,7 +1677,7 @@ QssDockWidget::QssDockWidget(QWidget *parent)
     m_titleBar->installEventFilter(this);
 
     QVBoxLayout* vbox = new QVBoxLayout(m_frame);
-    vbox->setMargin(0);
+//    vbox->setMargin(0);
     vbox->setSpacing(0);
     vbox->addWidget(m_titleBar);
     vbox->addWidget(this);
@@ -1993,7 +1969,7 @@ QssMaskWidget::QssMaskWidget(QWidget *parent)
     this->installEventFilter(this);
 
     QPalette palette = this->palette();
-    palette.setBrush(QPalette::Background, QColor(0,0,0));
+    palette.setBrush(QPalette::ColorRole::Dark, QColor(0,0,0));
     this->setPalette(palette);
     this->setWindowOpacity(0.5);//设置窗口透明度
     this->setWindowFlags(Qt::FramelessWindowHint | windowFlags());//去掉标题栏
@@ -2073,19 +2049,3 @@ void QSSASyncProcess::Run(void *)
 }
 
 
-uint16_t CurrentDPI(QWidget* widget,int monitor)
-{
-    float dpi = 1.0;
-    int screenNum =  qApp->desktop()->screenNumber(widget);
-    qDebug()<<"current screen number is "<<screenNum;
-    auto screens = qApp->screens();
-    for(int i = 0;i < screens.size();i++){
-        if(screenNum >= 0){
-            QScreen* screen = qApp->screens().at(i);
-            dpi = screen->physicalDotsPerInch();
-            qDebug()<<screen->physicalDotsPerInch()<<screen->physicalDotsPerInchX()<<screen->physicalDotsPerInchY();
-            qDebug()<<screen->logicalDotsPerInch()<<screen->logicalDotsPerInchX()<<screen->logicalDotsPerInchY();
-        }
-    }
-    return dpi;
-}
diff --git a/Qss.h b/Qss.h
index 8c6f04f..f316994 100644
--- a/Qss.h
+++ b/Qss.h
@@ -13,6 +13,7 @@
 #include <QDebug>
 #include <QThread>
 #include <QSystemTrayIcon>
+#include <qnamespace.h>
 
 #include "ui_qsstoast.h"
 #include "ui_process.h"
@@ -42,7 +43,6 @@ public:
 
 };
 // 获取当前dpi
-uint16_t CurrentDPI(QWidget* widget,int monitor);
 
 class  QssTtitleBar : public QWidget
 {
@@ -113,7 +113,7 @@ class QssEventFilter
     : public QAbstractNativeEventFilter
 {
 public:
-    virtual bool nativeEventFilter(const QByteArray &eventType, void *message, long *) Q_DECL_OVERRIDE
+    virtual bool nativeEventFilter(const QByteArray &eventType, void *message, long *)
     {
         return false;
     }
@@ -133,12 +133,12 @@ public:
     typedef enum{
         EVENT_MOVE = 523,
     } EVENT_CUSTOM;
-    QssMainWindow(QWidget *parent = 0, Qt::WindowFlags flags = 0,float scale = 1);
+    QssMainWindow(QWidget *parent = 0, Qt::WindowFlags flags = Qt::Window,
+                  float scale = 1);
     virtual ~QssMainWindow();
     void AdapteDpi();
     QWidget *TitleBar();
     void RangeObject();
-    void DetectDpiChange();
     void ShowMask();
     void HideMask();
     void show();
@@ -429,6 +429,7 @@ public:
     int Start(void*);
     QThread &Thread();
 signals:
+    void Info(QString);
     void DonePercent(int);
     void Done();
     void StartRun(void *);