Hello all,
When attatching a function to a button event, I can use
button1:action(). However, in certain circunstances, it's not good to
do it. See the code bellow:
require('iuplua')
function main(title)
local button1, vbox
button1 = iup.button{title = 'Botão 1'}
vbox = iup.vbox{button1}
return iup.dialog{vbox; title = title}
end
function button1_action()
iup.Message('Aviso', 'O botão 1 foi pressionado')
end
dlg = main('Teste')
dlg:show()
iup.MainLoop()
If I use button1:action, it was necessary to place it inside main
whereas I want to place it outside.
How to link button1 to the button1_action(?
One hypothesis could be:
button1 = iup.button{title = 'Botão 1', action = function ()
return button1_action()
end}
It works, but this choice is low readable. I tried:
function main(title)
local button1, vbox
button1 = iup.button{title = 'Botão 1'}
iup.SetAttribute(button1, 'ACTION', 'button1_action')
vbox = iup.vbox{button1}
return iup.dialog{vbox; title = title}
end
Actually, I want to use iup.SetAttribute to link events. I could place
my callback without closures and without action = function()..
Why didn't iup.SetAttribute work?
Regards,
Luciano
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