Windows: Initialize the mouse cursor resources

Initializing resources is required for static Qt builds on Windows.

Task-number: QTBUG-42075
Change-Id: I3074fd8ab57ac48762f589eb3776ed5cc7e2e31d
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

src/plugins/platforms/windows/qwindowscursor.cpp

@@ -48,6 +48,13 @@
 #include <QtCore/QDebug>
 #include <QtCore/QScopedArrayPointer>
 
+static void initResources()
+{
+#if !defined (Q_OS_WINCE) && !defined (QT_NO_IMAGEFORMAT_PNG)
+    Q_INIT_RESOURCE(cursors);
+#endif
+}
+
 QT_BEGIN_NAMESPACE
 
 Q_GUI_EXPORT HBITMAP qt_pixmapToWinHBITMAP(const QPixmap &p, int hbitmapFormat = 0);
@@ -568,6 +575,11 @@ QWindowsWindowCursor QWindowsCursor::pixmapWindowCursor(const QCursor &c)
     return it.value();
 }
 
+QWindowsCursor::QWindowsCursor()
+{
+    initResources();
+}
+
 /*!
     \brief Set a cursor on a window.
 

src/plugins/platforms/windows/qwindowscursor.h

@@ -91,7 +91,7 @@ public:
         CursorSuppressed // Cursor suppressed by touch interaction (Windows 8).
     };
 
-    QWindowsCursor() {}
+    QWindowsCursor();
 
     void changeCursor(QCursor * widgetCursor, QWindow * widget) Q_DECL_OVERRIDE;
     QPoint pos() const Q_DECL_OVERRIDE;