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haskellgtkgtk3gtk2hs

What are the equivalent of these functions in gtk2Hs when migrating from gtk2 to gtk3

I'm converting a Haskell program written with Gtk2Hs gtk2 to Gtk2Hs gtk3 and I'm looking the equivalent function of Gtk2Hs gtk2 for:

onActivateLeaf to catch the activation of a menu item.

onExpose to draw in a widget.

onClicked to catch the clicked event of a button.

onDestroy to catch the destroy event of a Widget.

I had a look at these function in the documentation but they are used to send a signal not to catch one.

menuItemActivate buttonClicked widgetDestroy

Can you tell me the right way to catch event for widget with the Gtk2Hs gtk3 API ?

Solution

  • I'm not 100% sure, but I would start by checking these:

    The on prefixes have been done away with in favor of a single function named on.