diff --git a/CMake/FindNumpy.cmake b/CMake/FindNumpy.cmake
index 764f57497c1dfbf43dda09118bc8e538fb513047..b53aa7c18a7d8bc7e3f1a1ef39ef4c400b7ca9cb 100644
--- a/CMake/FindNumpy.cmake
+++ b/CMake/FindNumpy.cmake
@@ -5,7 +5,7 @@
 #   NUMPY_INCLUDE_DIR   - where to find numpy/arrayobject.h, etc.
 
 EXEC_PROGRAM ("${PYTHON_EXECUTABLE}"
-  ARGS "-c 'import numpy; print numpy.get_include()'"
+  ARGS "${CMAKE_SOURCE_DIR}/CMake/otbTestNumpy.py"
   OUTPUT_VARIABLE NUMPY_INCLUDE_DIR
   RETURN_VALUE NUMPY_NOT_FOUND)
 
diff --git a/CMake/otbTestNumpy.py b/CMake/otbTestNumpy.py
new file mode 100644
index 0000000000000000000000000000000000000000..6b9a80111c4a895d0069dc9639c9701628c32e49
--- /dev/null
+++ b/CMake/otbTestNumpy.py
@@ -0,0 +1,2 @@
+import numpy
+print numpy.get_include()
diff --git a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputFilenameParameter.h b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputFilenameParameter.h
index 31641899e080989c3f1680b84eb228b81a6a705e..d2c4370b7f8a98c6305cbb606e61d3c90dd4ccea 100644
--- a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputFilenameParameter.h
+++ b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputFilenameParameter.h
@@ -42,6 +42,9 @@ public:
   QtWidgetOutputFilenameParameter(OutputFilenameParameter*, QtWidgetModel*);
   virtual ~QtWidgetOutputFilenameParameter();
 
+  inline const QLineEdit* GetInput() const;
+  inline QLineEdit* GetInput();
+
 protected slots:
   void SetFileName( const QString& value );
   void SelectFile();
@@ -63,6 +66,23 @@ private:
 };
 
 
+inline
+const QLineEdit*
+QtWidgetOutputFilenameParameter
+::GetInput() const
+{
+  return m_Input;
+}
+
+inline
+QLineEdit*
+QtWidgetOutputFilenameParameter
+::GetInput()
+{
+  return m_Input;
+}
+
+
 }
 }
 
diff --git a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputImageParameter.h b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputImageParameter.h
index 4d9e2b59a035c3c10a4029633f0eb0ef2e2b1f26..d0906049e1be304af383749692a695db8d015466 100644
--- a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputImageParameter.h
+++ b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputImageParameter.h
@@ -42,6 +42,9 @@ public:
   QtWidgetOutputImageParameter(OutputImageParameter*, QtWidgetModel*);
   virtual ~QtWidgetOutputImageParameter();
 
+  inline const QLineEdit* GetInput() const;
+  inline QLineEdit* GetInput();
+
   /** Get the PixelType*/
   //itkGetMacro(PixelType, int);
 
@@ -72,6 +75,22 @@ private:
 };
 
 
+inline
+const QLineEdit*
+QtWidgetOutputImageParameter
+::GetInput() const
+{
+  return m_Input;
+}
+
+inline
+QLineEdit*
+QtWidgetOutputImageParameter
+::GetInput()
+{
+  return m_Input;
+}
+
 }
 }
 
diff --git a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputVectorDataParameter.h b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputVectorDataParameter.h
index 140d7666e460daf7536d814d437f0f4c34edf4ba..43af269455983142d5a50b7b532f9facb827c95a 100644
--- a/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputVectorDataParameter.h
+++ b/Modules/Wrappers/QtWidget/include/otbWrapperQtWidgetOutputVectorDataParameter.h
@@ -42,6 +42,9 @@ public:
   QtWidgetOutputVectorDataParameter(OutputVectorDataParameter*, QtWidgetModel*);
   virtual ~QtWidgetOutputVectorDataParameter();
 
+  inline const QLineEdit* GetInput() const;
+  inline QLineEdit* GetInput();
+
   /** Get the PixelType*/
   //itkGetMacro(PixelType, int);
 
@@ -69,6 +72,23 @@ private:
 };
 
 
+
+inline
+const QLineEdit*
+QtWidgetOutputVectorDataParameter
+::GetInput() const
+{
+  return m_Input;
+}
+
+inline
+QLineEdit*
+QtWidgetOutputVectorDataParameter
+::GetInput()
+{
+  return m_Input;
+}
+
 }
 }