How to set style in a GTK+ 2 widget's realize function?

["Brent W. Baccala" <cosine freesoft org>]

Hi -

I've got a GTK+ 2 "external" widget (gtkdatabox from gtkdatabox.sf.net) that isn't displaying right after I've patched it to compile with GSEAL_ENABLED.

The relevant code in the older version was:

widget->style = gtk_style_attach (widget->style, widget->window);

which we changed to:

gtk_widget_set_style (widget, gtk_style_attach (gtk_widget_get_style (widget), window));

...and now the background color doesn't display right on an application (xoscope from xoscope.sf.net) that loads style from an "rc" file using gtk_rc_parse().

I don't understand GTK+ internals well enough to understand why.  If I take this line of code out completely, the background displays correctly, but colored lines in other applications (the gtkdatabox examples) don't display.

The solution I've got at the moment (other than convert the entire widget library and application to GTK+ 3) is to compile the widget without GSEAL_ENABLED and go back to the older code.

Can somebody who knows GTK+ 2 well help me out?  Any idea what's causing this and how to fix it?

Thanks.

    agape

    brent