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Re: How to grey out menu items




On Sat, 2015-09-26 at 13:14 +0200, Rafał Lużyński wrote:
> > On 20.09.2015 01:05 Stefan Salewski <mail@xxxxxxxxxxxx> wrote:
> > [...] May it be better, and is it possible to do that on the fly,
> > when the pulldown menu pops on? Maybe a signal which is emitted
> > before
> > the item becomes visible? Can not find something like that
> > unfortunately.
> 
> You can connect to the "map-event" signal of the popup widget:
> https://developer.gnome.org/gtk3/stable/GtkWidget.html#GtkWidget-map-
> event
> or to the "select" signal of the menu item which owns the popup:
> https://developer.gnome.org/gtk3/stable/GtkMenuItem.html#GtkMenuItem-
> select
> The "activate" and "activate-item" signals are probably not good
> because in Ubuntu Unity I've seen them emitted even when the popups
> are not opened. Also I am not sure if they are emitted when a user
> hovers the mouse over the item which opens the popup.
> 

Thank you all for the remarks and hints.
I know already that for GTK3 using "Actions" is recommended -- my app
was initially built with GTK2, so not all is ported to best GTK3
practice yet.
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