gtkcellrenderpixbuf and icon size

[rastersoft <raster rastersoft com>]

Hi all:

I'm using a gtkCellRenderPixbuf, and want to use my own pictures as 
icons. I'm loading them with Gdk.Pixbuf.from_file_at_size(), and works 
fine; the problem is that I don't know how to know the right icon size. 
With 16x16 seems fine, but I don't want to use a fixed size, because 
that could result in problems with HiDPI screens, or even themes that 
uses bigger or smaller icons. So the question is how to ensure that the 
icon is loaded at the right size?

Thanks.

--
Nos leemos
                         RASTER    (Linux user #228804)
raster rastersoft com              http://www.rastersoft.com