diff --git a/graphics/x11drv/dib.c b/graphics/x11drv/dib.c
index 5780cfa..2d1874d 100644
--- a/graphics/x11drv/dib.c
+++ b/graphics/x11drv/dib.c
@@ -3186,25 +3186,12 @@
 }
 
 /***********************************************************************
- *           X11DRV_DIB_UpdateDIBSection
+ *           X11DRV_DIB_CmnUpdateDIBSection
  */
-void X11DRV_DIB_UpdateDIBSection(DC *dc, BOOL toDIB)
+static void X11DRV_DIB_CmnUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
 {
-  BITMAPOBJ *bmp;
-  
-  /* Ensure this is a Compatible DC that has a DIB section selected */
-  
-  if (!dc) return;
-  if (!(dc->w.flags & DC_MEMORY)) return;
-  
-  bmp = (BITMAPOBJ *)GDI_GetObjPtr( dc->w.hBitmap, BITMAP_MAGIC );
   if (!bmp) return;
-  
-  if (!bmp->dib)
-    {
-      GDI_HEAP_UNLOCK(dc->w.hBitmap);
-      return;
-    }
+  if (!bmp->dib) return;
   
   if (!toDIB)
     {
@@ -3263,8 +3250,34 @@
 	  break;
         }
     }
+}
 
-    GDI_HEAP_UNLOCK(dc->w.hBitmap);
+/***********************************************************************
+ *           X11DRV_DIB_UpdateDIBSection2
+ */
+void X11DRV_DIB_UpdateDIBSection2(HBITMAP hbmp, BOOL toDIB)
+{
+  BITMAPOBJ *bmp;
+  
+  bmp = (BITMAPOBJ *)GDI_GetObjPtr( hbmp, BITMAP_MAGIC );
+  if (!bmp) return;
+
+  X11DRV_DIB_CmnUpdateDIBSection(bmp, toDIB);
+
+  GDI_HEAP_UNLOCK(hbmp);
+}
+
+/***********************************************************************
+ *           X11DRV_DIB_UpdateDIBSection
+ */
+void X11DRV_DIB_UpdateDIBSection(DC *dc, BOOL toDIB)
+{
+  /* Ensure this is a Compatible DC that has a DIB section selected */
+  
+  if (!dc) return;
+  if (!(dc->w.flags & DC_MEMORY)) return;
+  
+  X11DRV_DIB_UpdateDIBSection2(dc->w.hBitmap, toDIB);
 }
 
 /***********************************************************************
diff --git a/include/x11drv.h b/include/x11drv.h
index 9de72fa..c15c356 100644
--- a/include/x11drv.h
+++ b/include/x11drv.h
@@ -263,6 +263,7 @@
 				      WORD depth, const BITMAPINFO *info,
 				      int *nColors );
 extern void X11DRV_DIB_UpdateDIBSection(struct tagDC *dc, BOOL toDIB);
+extern void X11DRV_DIB_UpdateDIBSection2(HBITMAP hbmp, BOOL toDIB);
 
 extern HBITMAP X11DRV_DIB_CreateDIBSection(struct tagDC *dc, BITMAPINFO *bmi, UINT usage,
 					   LPVOID *bits, HANDLE section, DWORD offset, DWORD ovr_pitch);