How do I create a mask or validator for a GtkEntry?

There is an opensource subclass of gtk. Entry, ValidatedEntry, available at: www.astro.umass.edu otherwise... In short, there is no feature currently implemented that makes this easy. You can hack your own mask support by catching the insert and delete_text signals and doing the appropriate manipulation, but it is far from trivial to write; FAQ 14.5 includes a basic recipe.

There is a bug filed at bugzilla.gnome.org that discusses implementation of something like this (validation and masks) at the C level. See the thread at www.daa.com.au for more details. More.

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