fix crash on windows

src/librssguard/CMakeLists.txt

@@ -654,6 +654,12 @@ if(QT_VERSION_MAJOR EQUAL 6)
   )
 endif()
 
+if(WIN32)
+  target_link_libraries(rssguard PUBLIC
+    Qt${QT_VERSION_MAJOR}::GuiPrivate
+  )
+endif()
+
 if(USE_WEBENGINE)
   target_link_libraries(rssguard PUBLIC
     Qt${QT_VERSION_MAJOR}::WebEngineWidgets

src/librssguard/miscellaneous/application.cpp

@@ -54,6 +54,15 @@
 #endif
 #endif
 
+#if defined(Q_OS_WIN)
+#if QT_VERSION_MAJOR == 5
+#include <QtPlatformHeaders/QWindowsWindowFunctions>
+#else
+#include <QWindow>
+#include <QtGui/qpa/qplatformwindow_p.h>
+#endif
+#endif
+
 #if defined(Q_OS_WIN)
 #include <ShObjIdl.h>
 
@@ -623,13 +632,25 @@ void Application::showTrayIcon() {
         if (SystemTrayIcon::isSystemTrayAreaAvailable()) {
           qWarningNN << LOGSEC_GUI << "Tray icon is available, showing now.";
           trayIcon()->show();
-
-          offerChanges();
-          offerPolls();
         }
         else {
           m_feedReader->feedsModel()->notifyWithCounts();
         }
+
+        // NOTE: Below things have to be performed after tray icon is (if enabled)
+        // initialized.
+        offerChanges();
+        offerPolls();
+
+#if defined(Q_OS_WIN)
+#if QT_VERSION_MAJOR == 6
+        // NOTE: Fixes https://github.com/martinrotter/rssguard/issues/953 for Qt 6.
+        using QWindowsWindow = QNativeInterface::Private::QWindowsWindow;
+        if (auto w_w = qApp->mainForm()->windowHandle()->nativeInterface<QWindowsWindow>()) {
+          w_w->setHasBorderInFullScreen(true);
+        }
+#endif
+#endif
       });
   }
   else {

src/rssguard/CMakeLists.txt

@@ -28,12 +28,6 @@ if(QT_VERSION_MAJOR EQUAL 6)
   target_link_libraries(app PUBLIC
     Qt${QT_VERSION_MAJOR}::Core5Compat
   )
-
-  if(WIN32)
-    target_link_libraries(app PUBLIC
-      Qt${QT_VERSION_MAJOR}::GuiPrivate
-    )
-  endif()
 endif()
 
 if(APPLE)

src/rssguard/main.cpp

@@ -13,7 +13,6 @@
 #include <QtPlatformHeaders/QWindowsWindowFunctions>
 #else
 #include <QWindow>
-#include <QtGui/qpa/qplatformwindow_p.h>
 #endif
 #endif
 
@@ -118,15 +117,5 @@ int main(int argc, char* argv[]) {
   qApp
     ->parseCmdArgumentsFromOtherInstance(qApp->cmdParser()->positionalArguments().join(QSL(ARGUMENTS_LIST_SEPARATOR)));
 
-#if defined(Q_OS_WIN)
-#if QT_VERSION_MAJOR == 6
-  // NOTE: Fixes https://github.com/martinrotter/rssguard/issues/953 for Qt 6.
-  using QWindowsWindow = QNativeInterface::Private::QWindowsWindow;
-  if (auto w_w = main_window.windowHandle()->nativeInterface<QWindowsWindow>()) {
-    w_w->setHasBorderInFullScreen(true);
-  }
-#endif
-#endif
-
   return Application::exec();
 }