Implemented methods to retrieve the OpenGL handles from sf::Texture a…

…nd sf::Shader.

include/SFML/Graphics/Shader.hpp

@@ -456,6 +456,18 @@ public :
     ////////////////////////////////////////////////////////////
     void setParameter(const std::string& name, CurrentTextureType);
 
+    ////////////////////////////////////////////////////////////
+    /// \brief Get the underlying OpenGL handle of the shader.
+    ///
+    /// You shouldn't need to use this function, unless you have
+    /// very specific stuff to implement that SFML doesn't support,
+    /// or implement a temporary workaround until a bug is fixed.
+    ///
+    /// \return OpenGL handle of the shader or 0 if not yet loaded
+    ///
+    ////////////////////////////////////////////////////////////
+    unsigned int getNativeHandle() const;
+
     ////////////////////////////////////////////////////////////
     /// \brief Bind a shader for rendering
     ///

include/SFML/Graphics/Texture.hpp

@@ -420,6 +420,18 @@ public :
     ////////////////////////////////////////////////////////////
     Texture& operator =(const Texture& right);
 
+    ////////////////////////////////////////////////////////////
+    /// \brief Get the underlying OpenGL handle of the texture.
+    ///
+    /// You shouldn't need to use this function, unless you have
+    /// very specific stuff to implement that SFML doesn't support,
+    /// or implement a temporary workaround until a bug is fixed.
+    ///
+    /// \return OpenGL handle of the texture or 0 if not yet created
+    ///
+    ////////////////////////////////////////////////////////////
+    unsigned int getNativeHandle() const;
+
     ////////////////////////////////////////////////////////////
     /// \brief Bind a texture for rendering
     ///

src/SFML/Graphics/Shader.cpp

@@ -458,6 +458,13 @@ void Shader::setParameter(const std::string& name, CurrentTextureType)
 }
 
 
+////////////////////////////////////////////////////////////
+unsigned int Shader::getNativeHandle() const
+{
+    return m_shaderProgram;
+}
+
+
 ////////////////////////////////////////////////////////////
 void Shader::bind(const Shader* shader)
 {

src/SFML/Graphics/Texture.cpp

@@ -571,6 +571,13 @@ Texture& Texture::operator =(const Texture& right)
 }
 
 
+////////////////////////////////////////////////////////////
+unsigned int Texture::getNativeHandle() const
+{
+    return m_texture;
+}
+
+
 ////////////////////////////////////////////////////////////
 unsigned int Texture::getValidSize(unsigned int size)
 {