+ static RenderControl *createRenderControl(int screen);
+
+ //! Draws a background onto a Surface, as specified by a RenderTexture
+ /*!
+ This function will overwrite the entire surface.
+ */
+ virtual void drawBackground(Surface &sf,
+ const RenderTexture &texture) const;
+
+ //! Draws an image onto the surface
+ /*!
+ This function will overwrite the entire surface.<br>
+ The image must be specified in 32-bit packed ARGB format. The current
+ background will be used for applying the alpha.
+ */
+ virtual void drawImage(Surface &sf, int w, int h,
+ unsigned long *data) const;
+
+ //! Draws an image onto the surface
+ virtual void drawImage(Surface &sf, Pixmap pixmap, Pixmap mask) const;
+
+ //! Draws a string onto a Surface
+ virtual void drawString(Surface &sf, const Font &font, int x, int y,
+ const RenderColor &color,
+ const ustring &string) const;
+
+ //! Draws a PixmapMask with a specified color onto a Surface
+ virtual void drawMask(Surface &sf, const RenderColor &color,
+ const PixmapMask &mask) const;
+
+ virtual void allocateColor(XColor *color) const = 0;