diff --git a/qmake/core.pri b/qmake/core.pri
index 26df370..08761c4 100644
--- a/qmake/core.pri
+++ b/qmake/core.pri
@@ -56,15 +56,14 @@ win32 {
         $$CORE_SRC_DIR/utils_win.cpp \
         $$CORE_SRC_DIR/registrykey.cpp \
         $$CORE_SRC_DIR/winverhelper.cpp
-    LIBS += -luser32 -lgdi32
+    LIBS += -luser32 -lgdi32 -lshell32
 }
 
 unix:!macx {
     CONFIG += link_pkgconfig
-    PKGCONFIG += gtk+-3.0
+    PKGCONFIG += gtk+-3.0 xcb
     DEFINES += GDK_VERSION_MIN_REQUIRED=GDK_VERSION_3_6
     SOURCES += $$CORE_SRC_DIR/utils_linux.cpp
-    #LIBS += -lxcb # TODO
 }
 
 macx {
diff --git a/src/widgets/framelesswidgetshelper.cpp b/src/widgets/framelesswidgetshelper.cpp
index 78b8694..c348678 100644
--- a/src/widgets/framelesswidgetshelper.cpp
+++ b/src/widgets/framelesswidgetshelper.cpp
@@ -38,6 +38,7 @@
 #include <QtGui/qwindow.h>
 #include <QtGui/qpalette.h>
 #include <QtWidgets/qwidget.h>
+#include <QtWidgets/qapplication.h>
 #include <framelessmanager.h>
 #include <framelessconfig_p.h>
 #include <utils.h>
@@ -552,7 +553,7 @@ bool FramelessWidgetsHelperPrivate::isInSystemButtons(const QPoint &pos, SystemB
     return false;
 }
 
-bool FramelessWidgetsHelperPrivate::isInTitleBarDraggableArea(const QPoint &pos) const
+bool FramelessWidgetsHelperPrivate::isInTitleBarDraggableArea(const QPoint &localPos) const
 {
     const WidgetsHelperData data = getWindowData();
     if (!data.titleBarWidget) {
@@ -597,7 +598,14 @@ bool FramelessWidgetsHelperPrivate::isInTitleBarDraggableArea(const QPoint &pos)
             }
         }
     }
-    return region.contains(pos);
+    if (!region.contains(localPos)) {
+        return false;
+    }
+    const QPoint globalPos = m_window->mapToGlobal(localPos);
+    // Don't move the window if the user is dragging something above the title bar widget,
+    // according to the Qt documentation, QApplication::widgetAt() can be slow, but we really
+    // can't avoid calling it here.
+    return (QApplication::widgetAt(globalPos) == data.titleBarWidget);
 }
 
 bool FramelessWidgetsHelperPrivate::shouldIgnoreMouseEvents(const QPoint &pos) const