pixbuf_new_from_stock

[geezer9]

This is not strictly a NIM question - but it is in service to an attempt to 
write a semi-cross-platform nim gui library. The question concerns gtk2

There is a need to load a pixbuf from a stock image - such as 
**gtk-dialog-error**.

There seems to be no **pixbuf_new_from_stock** function.

The following attempted work-around:
    
    
            var stockid = "gtk-dialog-error"
            echo "stockid=",stockid
            var img = image_new_from_stock(stockid,32)
            echo "img=",cast[int](img).toHex(8)
            var pixbuf = get_pixbuf(img)
            echo "pixbuf=",cast[int](pixbuf).toHex(8)
    

produced this console output:
    
    
    stockid=gtk-dialog-error
    img=0858CC20
    
    (test25:5319): Gtk-CRITICAL **: IA__gtk_image_get_pixbuf: assertion 
'image->storage_type == GTK_IMAGE_PIXBUF || image->storage_type == 
GTK_IMAGE_EMPTY' failed
    pixbuf=00000000
    
    

Can anyone suggest a way to implement **pixbuf_new_from_stock** ?

There are good reasons for wanting to do that - having to do with wrapping both 
MSWIN and GTK with a common interface.

BTW, is there a way to convert Gtk error locations such as 5319 into nim source 
line numbers??