gimpregioniterator Functions to traverse a pixel regions. The GimpRgnIterator functions provide a variety of common ways to traverse a PixelRegion, using a pre-defined function pointer per pixel. @src: @bpp: @data: @src: @dest: @bpp: @data: @x: @y: @src: @bpp: @data: @x: @y: @dest: @bpp: @data: @x: @y: @src: @dest: @bpp: @data: @drawable: @unused: @Returns: @iter: @iter: @func: @data: @iter: @func: @data: @iter: @func: @data: @drawable: @unused: @func: @data: @drawable: @unused: @func: @data: