6 files changed, 10 insertions, 10 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index e51c3d0502..cbc930387f 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -455,7 +455,7 @@ void QXcbConnection::printXcbError(const char *message, xcb_generic_error_t *err
 
 static Qt::MouseButtons translateMouseButtons(int s)
 {
-    Qt::MouseButtons ret = 0;
+    Qt::MouseButtons ret;
     if (s & XCB_BUTTON_MASK_1)
         ret |= Qt::LeftButton;
     if (s & XCB_BUTTON_MASK_2)
diff --git a/src/plugins/platforms/xcb/qxcbconnection.h b/src/plugins/platforms/xcb/qxcbconnection.h
index a894944096..62c5e5d79e 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.h
+++ b/src/plugins/platforms/xcb/qxcbconnection.h
@@ -294,7 +294,7 @@ private:
         int deviceId = 0;
         QTabletEvent::PointerType pointerType = QTabletEvent::UnknownPointer;
         QTabletEvent::TabletDevice tool = QTabletEvent::Stylus;
-        Qt::MouseButtons buttons = 0;
+        Qt::MouseButtons buttons;
         qint64 serialId = 0;
         bool inProximity = false;
         struct ValuatorClassInfo {
@@ -318,8 +318,8 @@ private:
         int horizontalIndex = 0;
         double verticalIncrement = 0;
         double horizontalIncrement = 0;
-        Qt::Orientations orientations = 0;
-        Qt::Orientations legacyOrientations = 0;
+        Qt::Orientations orientations;
+        Qt::Orientations legacyOrientations;
         QPointF lastScrollPosition;
     };
     QHash<int, ScrollingDevice> m_scrollingDevices;
@@ -360,7 +360,7 @@ private:
 
     WindowMapper m_mapper;
 
-    Qt::MouseButtons m_buttonState = nullptr;
+    Qt::MouseButtons m_buttonState;
     Qt::MouseButton m_button = Qt::NoButton;
 
     QXcbWindow *m_focusWindow = nullptr;
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
index 4639185416..fdf59c5ef4 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
@@ -424,7 +424,7 @@ QXcbConnection::TouchDeviceData *QXcbConnection::touchDeviceForId(int id)
 QXcbConnection::TouchDeviceData *QXcbConnection::populateTouchDevices(void *info)
 {
     auto *deviceinfo = reinterpret_cast<xcb_input_xi_device_info_t *>(info);
-    QTouchDevice::Capabilities caps = 0;
+    QTouchDevice::Capabilities caps;
     int type = -1;
     int maxTouchPoints = 1;
     bool isTouchDevice = false;
diff --git a/src/plugins/platforms/xcb/qxcbdrag.cpp b/src/plugins/platforms/xcb/qxcbdrag.cpp
index 3d525598ca..eb5b8f808e 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.cpp
+++ b/src/plugins/platforms/xcb/qxcbdrag.cpp
@@ -883,7 +883,7 @@ void QXcbDrag::handleLeave(QPlatformWindow *w, const xcb_client_message_event_t
                 event->data.data32[0], xdnd_dragsource);
     }
 
-    QWindowSystemInterface::handleDrag(w->window(), nullptr, QPoint(), Qt::IgnoreAction, 0, 0);
+    QWindowSystemInterface::handleDrag(w->window(), nullptr, QPoint(), Qt::IgnoreAction, { }, { });
 }
 
 void QXcbDrag::send_leave()
diff --git a/src/plugins/platforms/xcb/qxcbdrag.h b/src/plugins/platforms/xcb/qxcbdrag.h
index 1388e68acc..7bef7a818a 100644
--- a/src/plugins/platforms/xcb/qxcbdrag.h
+++ b/src/plugins/platforms/xcb/qxcbdrag.h
@@ -86,7 +86,7 @@ public:
     void handlePosition(QPlatformWindow *w, const xcb_client_message_event_t *event);
     void handleLeave(QPlatformWindow *w, const xcb_client_message_event_t *event);
     void handleDrop(QPlatformWindow *, const xcb_client_message_event_t *event,
-                    Qt::MouseButtons b = nullptr, Qt::KeyboardModifiers mods = nullptr);
+                    Qt::MouseButtons b = { }, Qt::KeyboardModifiers mods = { });
 
     void handleStatus(const xcb_client_message_event_t *event);
     void handleSelectionRequest(const xcb_selection_request_event_t *event);
@@ -109,7 +109,7 @@ private:
     void init();
 
     void handle_xdnd_position(QPlatformWindow *w, const xcb_client_message_event_t *event,
-                              Qt::MouseButtons b = nullptr, Qt::KeyboardModifiers mods = nullptr);
+                              Qt::MouseButtons b = { }, Qt::KeyboardModifiers mods = { });
     void handle_xdnd_status(const xcb_client_message_event_t *event);
     void send_leave();
 
diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index 76d3545d35..840bcfd3bb 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -927,7 +927,7 @@ void QXcbWindow::setWindowFlags(Qt::WindowFlags flags)
 
     xcb_change_window_attributes(xcb_connection(), xcb_window(), mask, values);
 
-    QXcbWindowFunctions::WmWindowTypes wmWindowTypes = 0;
+    QXcbWindowFunctions::WmWindowTypes wmWindowTypes;
     if (window()->dynamicPropertyNames().contains(wm_window_type_property_id)) {
         wmWindowTypes = static_cast<QXcbWindowFunctions::WmWindowTypes>(
             window()->property(wm_window_type_property_id).value<int>());