wip

Signed-off-by: Yuhang Zhao <2546789017@qq.com>

examples/example.manifest

@@ -27,8 +27,8 @@
   </compatibility>
   <application xmlns="urn:schemas-microsoft-com:asm.v3">
     <windowsSettings>
-      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">True/PM</dpiAware>
-      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2, PerMonitor</dpiAwareness>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">True/PM, True</dpiAware>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2, PerMonitor, System</dpiAwareness>
     </windowsSettings>
   </application>
 </assembly>

framelesshelper.cpp

@@ -70,6 +70,9 @@ bool FramelessHelper::eventFilter(QObject *object, QEvent *event)
         return false;
     }
     const auto window = qobject_cast<QWindow *>(object);
+    if (Utilities::isWindowFixedSize(window)) {
+        return false;
+    }
     const auto mouseEvent = static_cast<QMouseEvent *>(event);
 #if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
     const QPointF localPos = mouseEvent->position();

framelesshelper_win32.cpp

@@ -584,6 +584,10 @@ bool FramelessHelperWin::nativeEventFilter(const QByteArray &eventType, void *me
         // another branch, if you are interested in it, you can give it a
         // try.
 
+        if (Utilities::isWindowFixedSize(window)) {
+            *result = HTCLIENT;
+            return true;
+        }
         const POINT globalPos = {GET_X_LPARAM(msg->lParam), GET_Y_LPARAM(msg->lParam)};
         POINT localPos = globalPos;
         if (ScreenToClient(msg->hwnd, &localPos) == FALSE) {

utilities.cpp

@@ -79,4 +79,18 @@ Qt::Edges Utilities::calculateWindowEdges(const QWindow *window, const QPointF &
     return edges;
 }
 
+bool Utilities::isWindowFixedSize(const QWindow *window)
+{
+    Q_ASSERT(window);
+    if (!window) {
+        return false;
+    }
+    if (window->flags() & Qt::MSWindowsFixedSizeDialogHint) {
+        return true;
+    }
+    const QSize minSize = window->minimumSize();
+    const QSize maxSize = window->maximumSize();
+    return (!minSize.isEmpty() && !maxSize.isEmpty() && (minSize == maxSize));
+}
+
 FRAMELESSHELPER_END_NAMESPACE

utilities.h

@@ -36,6 +36,7 @@ namespace Utilities
 [[nodiscard]] FRAMELESSHELPER_API Qt::Edges calculateWindowEdges(const QWindow *window, const QPointF &pos);
 FRAMELESSHELPER_API void startSystemMove(QWindow *window);
 FRAMELESSHELPER_API void startSystemResize(QWindow *window, const Qt::Edges edges);
+[[nodiscard]] FRAMELESSHELPER_API bool isWindowFixedSize(const QWindow *window);
 
 #ifdef Q_OS_WINDOWS
 [[nodiscard]] FRAMELESSHELPER_API bool isWin8OrGreater();