Unable to access any widgets in an window.

Question

I have one GtkWindow with one GtkVBox and GtkEntry.
Some times it happens that i am unable to access buttons Buttons, lists, entries.
But i am able to add widgets to GtkVBox and it gets updated with new widgets too.

Looks like it loses Focus. i tries with setting focus but it does not helps.

What might be wrong.

Answer 1

You mention having a pop-up, in a comment. Is this pop-up modal, are you nesting calls to gtk_main(), or calling gtk_dialog_run()?

It sounds a bit as if GTK+ is considering the displayed UI to be "locked", which it also does when a modal dialog is open.

Try it without your timer and pop-up, see if it changes.