+
+ m_clipPaintRegion = TRUE;
+
+ gtk_pizza_scroll( GTK_PIZZA(m_wxwindow), -dx, -dy );
+
+ m_clipPaintRegion = FALSE;
+#else
+
+ gdk_window_scroll( GTK_PIZZA(m_wxwindow)->bin_window, dx, dy );
+
+ GTK_PIZZA(m_wxwindow)->xoffset += dx;
+ GTK_PIZZA(m_wxwindow)->yoffset += dy;
+
+#endif
+
+}
+
+
+// Find the wxWindow at the current mouse position, also returning the mouse
+// position.
+wxWindow* wxFindWindowAtPointer(wxPoint& pt)
+{
+ pt = wxGetMousePosition();
+ wxWindow* found = wxFindWindowAtPoint(pt);
+ return found;
+}
+
+// Get the current mouse position.
+wxPoint wxGetMousePosition()
+{
+ /* This crashes when used within wxHelpContext,
+ so we have to use the X-specific implementation below.
+ gint x, y;
+ GdkModifierType *mask;
+ (void) gdk_window_get_pointer(NULL, &x, &y, mask);
+
+ return wxPoint(x, y);
+ */
+
+ int x, y;
+ GdkWindow* windowAtPtr = gdk_window_at_pointer(& x, & y);
+ if (!windowAtPtr)
+ return wxPoint(-999, -999);
+
+ Display *display = GDK_WINDOW_XDISPLAY(windowAtPtr);
+ Window rootWindow = RootWindowOfScreen (DefaultScreenOfDisplay(display));
+ Window rootReturn, childReturn;
+ int rootX, rootY, winX, winY;
+ unsigned int maskReturn;
+
+ XQueryPointer (display,
+ rootWindow,
+ &rootReturn,
+ &childReturn,
+ &rootX, &rootY, &winX, &winY, &maskReturn);
+ return wxPoint(rootX, rootY);
+