Re: cancelling/aborting an emitted signal

["Steph" <Steph Fox btinternet com>]

can't you just set_sensitive(false)?

- otherwise, signal_handler_block() is your friend.

----- Original Message ----- 
From: "Luciano Chavez" <lnx1138 us ibm com>
To: <gtk-list gnome org>
Sent: Wednesday, February 27, 2002 12:46 AM
Subject: cancelling/aborting an emitted signal


> Hello,
> 
> Can someone suggest the proper generic way to abort a signal from
> actually causing the default handler to change the widget value. Must I
> connect the signal handler in a certain order?
> 
> For example, in a "toggled" signal handler for a toggle button if some
> condition is true then I want the "toggled" signal to be canceled so the
> widget does not signify the change (a checkmark displayed or removed).
> I've tried the following but get a Gtk Warning indicating there is to no
> emitted signal to stop:
> 
> gtk_signal_emit_stop_by_name (GTK_OBJECT (button), "toggled");
> 
> Again, I want to know the generic method to cancel a signal within a
> signal handler so the widget does not reflect the change. This applies
> to GtkAdjustment value changes (for GtkHScale and GtkSpinButton
> changes), GtkCList row selection and unselection, and others.
>  
> -- 
> regards,
> 
> Luciano Chavez
> 
> lnx1138 us ibm com          
> http://sf.net/projects/evms
> 
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