Re: changing font, color, size, etc. in a GtkEntry

[Eric Wajnberg <eric wajnberg sophia inra fr>]

Thanks Michael,

This is indeed the sort of solutions I've tried.

However, as I've mentioned in my original post, functions like 
pango_font_description_from_string, etc. are not recognized in my coding 
environment (while I can define pointer to things like 
PangoFontDescription  without problem).

This looks weird to me. Is there some specific libraries or headers I 
have to load or declare before? Or are these fonctions available on GTK 
3 only, and - if yes - what can I do, then?

(I am coding on Windows with CodeBlocks 12.11 and GTK 2.24.0).

Any help on this will be welcomed!

Cheers, Eric.


Michael Cronenworth wrote, On 05/11/2013 17:15,
> Eric Wajnberg wrote:
> > I simply want to modify the font, color, size, etc. of the characters 
> > entered
> > while they are typed in a GtkEntry. I am coding with GTK 2.24.0.
> >
> > Looking around on the web, I found several possible functions to do 
> > that, some
> > of them seem to be specific to GTK3, however. I found - and tried to 
> > play with -
> > things like:
> >
> > gtk_entry_set_attributes
> > gtk_widget_modify_text
> > gtk_widget_modify_base
> > gtk_widget_modify_font
> > gtk_widget_create_pango_layout
> > gtk_widget_create_pango_context
> >
> > Some of them lead me to define and to argument a pointer to a struct 
> > of type
> > PangoFontDescription or GtkStyle. Hence, it seems that I also need to 
> > use
> > function like, e.g., pango_font_description_set_weight, etc., but I'm 
> > not fully
> > sure about this.
> > I remained unable to sort this out, and some of these functions are 
> > even not recognized in my coding environment.. 
>
> You are close. You need to use gtk_widget_modify_font(). You pass in a 
> font description created by:
>
> PangoFontDescription *fontDesc =
>             pango_font_description_from_string( "monospace 10" );
>
> This would set the entry text to a monospace-type font with 10 point 
> size. Don't forget to call pango_font_description_free() afterwards.
>
> If you wish to change font while typing you need to connect to the 
> "key-press-event" signal on the GtkEntry widget and handle key presses 
> that way.
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