diff -r 8f231ee779cb -r 4b42fb40e6d2 src/viewport.cpp
--- a/src/viewport.cpp	Tue Feb 13 13:00:37 2007 +0000
+++ b/src/viewport.cpp	Tue Feb 13 18:07:36 2007 +0000
@@ -1332,17 +1332,17 @@
 	ViewportDrawChk(vp, left, top, right, bottom);
 }
 
-void DrawWindowViewport(const Window *w)
+void Window::DrawViewport() const
 {
 	DrawPixelInfo *dpi = _cur_dpi;
 
-	dpi->left += w->left;
-	dpi->top += w->top;
-
-	ViewportDraw(w->viewport, dpi->left, dpi->top, dpi->left + dpi->width, dpi->top + dpi->height);
-
-	dpi->left -= w->left;
-	dpi->top -= w->top;
+	dpi->left += left;
+	dpi->top += top;
+
+	ViewportDraw(viewport, dpi->left, dpi->top, dpi->left + dpi->width, dpi->top + dpi->height);
+
+	dpi->left -= left;
+	dpi->top -= top;
 }
 
 void UpdateViewportPosition(Window *w)