update

src/FluFramelessHelper.cpp

@@ -33,7 +33,7 @@ static inline bool isCompositionEnabled(){
 
 static inline void showShadow(HWND hwnd){
     if(isCompositionEnabled()){
-        const MARGINS shadow = { 1, 0, 0, 0 };
+        const MARGINS shadow = { 1, 1, 1, 1 };
         typedef HRESULT (WINAPI* DwmExtendFrameIntoClientAreaPtr)(HWND hWnd, const MARGINS *pMarInset);
         HMODULE module = LoadLibraryW(L"dwmapi.dll");
         if (module)
@@ -113,14 +113,6 @@ bool FramelessEventFilter::nativeEventFilter(const QByteArray &eventType, void *
             QGuiApplication::sendEvent(_helper->maximizeButton(),&event);
         }
         return false;
-    }else if(uMsg == WM_GETMINMAXINFO){
-        if(IsZoomed(hwnd)){
-            RECT frame = {0,0,0,0};
-            AdjustWindowRectEx(&frame,WS_OVERLAPPEDWINDOW,FALSE,0);
-            _helper->setOffsetXY(QPoint(floor(abs(frame.left)/_helper->window->devicePixelRatio()),floor(abs(frame.bottom)/_helper->window->devicePixelRatio())));
-        }else{
-            _helper->setOffsetXY(QPoint(0,0));
-        }
     }
     return false;
 #endif
@@ -247,7 +239,6 @@ void FluFramelessHelper::componentComplete(){
 #endif
         _stayTop = QQmlProperty(window,"stayTop");
         _screen = QQmlProperty(window,"screen");
-        _offsetXY = QQmlProperty(window,"_offsetXY");
         _onStayTopChange();
         _stayTop.connectNotifySignal(this,SLOT(_onStayTopChange()));
         _screen.connectNotifySignal(this,SLOT(_onScreenChanged()));
@@ -341,10 +332,6 @@ QObject* FluFramelessHelper::maximizeButton(){
     return var.value<QObject*>();
 }
 
-void FluFramelessHelper::setOffsetXY(QPoint val){
-    _offsetXY.write(val);
-}
-
 bool FluFramelessHelper::resizeable(){
     return !(window->width() == window->maximumWidth() && window->width() == window->minimumWidth() && window->height() == window->maximumHeight() && window->height() == window->minimumHeight());
 }

src/FluFramelessHelper.h

@@ -39,7 +39,6 @@ public:
     bool hoverMaxBtn();
     bool resizeable();
     QObject* maximizeButton();
-    void setOffsetXY(QPoint val);
     Q_INVOKABLE void showSystemMenu();
 protected:
     bool eventFilter(QObject *obj, QEvent *event) override;
@@ -55,7 +54,6 @@ private:
     FramelessEventFilter* _nativeEvent = nullptr;
     QQmlProperty _stayTop;
     QQmlProperty _screen;
-    QQmlProperty _offsetXY;
 };
 
 #endif // FLUFRAMELESSHELPER_H

src/Qt5/imports/FluentUI/Controls/FluWindow.qml

@@ -73,6 +73,19 @@ Window {
     Component.onDestruction: {
         lifecycle.onDestruction()
     }
+    onVisibilityChanged: {
+        if(visibility === Window.Maximized || visibility === Window.FullScreen){
+            var dx = window.x-Screen.virtualX
+            var dy = window.y-Screen.virtualY
+            if(dx<0 && dy<0){
+                _offsetXY = Qt.point(Math.abs(dx+1),Math.abs(dy+1))
+            }else{
+                _offsetXY = Qt.point(0,0)
+            }
+        }else{
+            _offsetXY = Qt.point(0,0)
+        }
+    }
     onShowSystemMenu: {
         if(loader_frameless_helper.item){
             loader_frameless_helper.item.showSystemMenu()

src/Qt6/imports/FluentUI/Controls/FluWindow.qml

@@ -72,6 +72,19 @@ Window {
     Component.onDestruction: {
         lifecycle.onDestruction()
     }
+    onVisibilityChanged: {
+        if(visibility === Window.Maximized || visibility === Window.FullScreen){
+            var dx = window.x-Screen.virtualX
+            var dy = window.y-Screen.virtualY
+            if(dx<0 && dy<0){
+                _offsetXY = Qt.point(Math.abs(dx+1),Math.abs(dy+1))
+            }else{
+                _offsetXY = Qt.point(0,0)
+            }
+        }else{
+            _offsetXY = Qt.point(0,0)
+        }
+    }
     onShowSystemMenu: {
         if(loader_frameless_helper.item){
             loader_frameless_helper.item.showSystemMenu()