53 lines
1.3 KiB
Nim
53 lines
1.3 KiB
Nim
# nim c connect_args.nim
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import gintro/[gtk, glib, gobject, gio]
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type
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O = object
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i: int
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proc b1Callback(button: Button; str: string) =
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echo str
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proc b2Callback(button: Button; o: O) =
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echo "Value of field i in object o = ", o.i
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proc b3Callback(button: Button; r: ref O) =
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echo "Value of field i in ref to object O = ", r.i
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proc b4Callback(button: Button; w: ApplicationWindow) =
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if w.title == "Nim with GTK3":
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w.title = "GTK3 with Nim"
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else:
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w.title = "Nim with GTK3"
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proc appActivate (app: Application) =
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var o: O
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var r: ref O
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new r
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o.i = 1234567
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r.i = 7654321
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let window = newApplicationWindow(app)
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let box = newBox(Orientation.vertical, 0)
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window.title = "Parameters for callbacks"
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let b1 = newButton("Nim with GTK3")
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let b2 = newButton("Passing an object from stack")
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let b3 = newButton("Passing an object from heap")
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let b4 = newButton("Passing a Widget")
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b1.connect("clicked", b1Callback, "is much fun.")
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b2.connect("clicked", b2Callback, o)
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b3.connect("clicked", b3Callback, r)
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b4.connect("clicked", b4Callback, window)
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box.add(b1)
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box.add(b2)
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box.add(b3)
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box.add(b4)
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window.add(box)
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window.showAll
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proc main =
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let app = newApplication("org.gtk.example")
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connect(app, "activate", appActivate)
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discard app.run
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main()
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