+#ifdef HAVE_FREEIMAGE
+  Standard_EXPORT FIBITMAP* GetImageToDump (int theFormat);
   FIBITMAP* myLibImage;

-: myLibImage (NULL)
+#ifdef HAVE_FREEIMAGE
+  : myLibImage (NULL)
+#endif 

+  //!                    when theData isn't NULL used only to determine format 

+  //! @param theBuffer   buffer pointer where to write 

+  Standard_EXPORT bool Save (const TCollection_AsciiString& theFileName,
+                             Standard_Byte* theBuffer = NULL,
+                             Standard_Size theLength = 0); 

Added two new Image_AlienPixMap::Save() overloads, taking std::ostream or memory buffer arguments.

+  //! Write image data to file or memory buffer using file extension to determine format.
+  //! @param theBuffer   buffer pointer where to write
+  //!                    when NULL, function write image data to theFileName file
+  //! @param theLength   memory buffer length
+  //! @param theFileName file name to save;
+  //!                    when theBuffer isn't NULL used only to determine format

+  Standard_EXPORT bool Save (Standard_Byte* theBuffer,
+                             Standard_Size theLength,
+                             const TCollection_AsciiString& theFileName);

+private:
+  Standard_EXPORT FIBITMAP* GetImageToDump (int theFormat);
   FIBITMAP* myLibImage;

+  if (ViewerTest::CurrentView().IsNull())
+  {
+    std::cout << "Error: no active view\n";
+    return 1;
+  }
...
+    else
+    {
+      std::cout << "Syntax error at '" << anArg << "'\n";
+      return 1;
+    }
...
+  if (aFile.get() == NULL)
+  {
+    std::cout << "Syntax error: image file '" << anImgPath << "' cannot be found\n";
+    return 1;
+  }