The non deprecated enableBlurBehind requires KWINDOWSYSTEM >= 5.82.0

Deprecated: Since 5.82, use enableBlurBehind(QWindow) overload.

src/MainWindow.cpp

@@ -31,6 +31,7 @@
 #include <KNotifyConfigWidget>
 
 #include <kio_version.h>
+#include <kwindowsystem_version.h>
 
 // Konsole
 #include "BookmarkHandler.h"
@@ -885,7 +886,11 @@ void MainWindow::setBlur(bool blur)
     _blurEnabled = blur;
 
     if (!_pluggedController->isKonsolePart()) {
+#if KWINDOWSYSTEM_VERSION < QT_VERSION_CHECK(5,82,0)
+        KWindowEffects::enableBlurBehind(winId(), blur);
+#else
         KWindowEffects::enableBlurBehind(windowHandle(), blur);
+#endif
     }
 }
 

src/tests/demo_konsolepart/src/demo_konsolepart.cpp

@@ -17,6 +17,8 @@
 #include <KWindowSystem>
 #include <KWindowEffects>
 
+#include <kwindowsystem_version.h>
+
 // see below notes
 //#include "../../../WindowSystemInfo.h"
 
@@ -59,7 +61,11 @@ demo_konsolepart::demo_konsolepart()
                               Qt::DirectConnection,
                               Q_RETURN_ARG(bool, blurEnabled));
     qWarning()<<"blur enabled: "<<blurEnabled;
+#if KWINDOWSYSTEM_VERSION < QT_VERSION_CHECK(5,82,0)
+    KWindowEffects::enableBlurBehind(winId(), blurEnabled);
+#else
     KWindowEffects::enableBlurBehind(windowHandle(), blurEnabled);
+#endif
 }
 
 demo_konsolepart::~demo_konsolepart()