Hi Manuel,
if you look in the object hierarchy you see that GtkFileChooserDialog
is a descendant of GtkWindow and therefore inherits GtkWindow's
methods. There are some geometry-related functions there, check them
out.


  GObject
   +----GInitiallyUnowned
         +----GtkObject
               +----GtkWidget
                     +----GtkContainer
                           +----GtkBin
                                 +----GtkWindow
                                       +----GtkDialog
                                             +----GtkFileChooserDialog

Regards,
robert

On Tue, Feb 14, 2012 at 2:09 PM, Manuel Ferrero <mferr...@reer.it> wrote:
> How can I change the GtkFileChooser size via code?
> I create the FileChooser like this:
> open_dialog = gtk_file_chooser_dialog_new("Open",
>                                          GTK_WINDOW(data->window1),
>                                          GTK_FILE_CHOOSER_ACTION_OPEN,
>                                          GTK_STOCK_CANCEL,
>                                          GTK_RESPONSE_CANCEL,
>                                          GTK_STOCK_OPEN,
>                                          GTK_RESPONSE_ACCEPT,
>                                          NULL);
>
> TIA
> --
> Regards,
> Manuel Ferrero
> R&D department
>
> Reer SpA
> Tel.  +39 011 2482215
> Fax. +39 011 859867
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