executing a function when a vgui frame gets closed

[TerabyteS]

Hi, I'd want to make a function, something like
function Button:DoClick()

but instead of being run when the button is pressed, i want it to run when a frame is closed, so something like

function Frame:IsClosed()

Whats the fucntion?

[_Muffin]

Does the button close the frame? Anyway,

there's no function (that I know of) for that. Maybe you could try overriding panel:Remove (it might be panel:Close for DPanels) to run your shizz.

local old = PANEL.Remove
function PANEL:Remove( )

run_stuff( )
old( self )

end

If that doesn't work then try changing Remove to Close.

[TerabyteS]

I get this error HLTF\gamemode\shared.lua:35: function arguments expected near 'function'
[lua]GM.Name = "Half Life 2: Team Fortress"
GM.Author = "Tera"
GM.Email = "[e-mail]"

DeriveGamemode( "base" )

team.SetUp( 1, "Combine", Color( 0, 50, 200, 255 ) )
team.SetUp( 2, "Resistance", Color( 200, 0, 0, 255 ) )

function change_model_combine()
local ply = LocalPlayer()
ply:SetModel("models/combine_soldier.mdl")
end

function classchange()
Msg ("M HAS BEEN PRESD")

if CLIENT then
local Frame = vgui.Create("Frame");
Frame:SetSize(200, 200)
Frame:SetPos((ScrW()/2)-100, (ScrH()/2)-100)
Frame:SetVisible(true)
Frame:MakePopup()
Frame:PostMessage("SetTitle", "text", "This is the title")

local Button = vgui.Create("Button", Frame)
Button:SetText("Click me")
Button:SetPos(30, 100)
Button:SetWide(100)
function Button:DoClick()
change_model_combine()
Frame:Close()
frameopen = false
local old = PANEL:Remove
function PANEL:Remove( )
frameopen = false
old( self )
end
end
end
end

frameopen = false

local function Think( )

if( input.IsKeyDown( KEY_M ) and frameopen ~= true ) then

-- m key was pressed

frameopen = true
classchange()

elseif( keydown == true ) then

end

end
hook.Add( "Think", "CheckKeyInput", Think );
[/lua]

[Horsey]

[lua]
local old = PANEL.Remove
function PANEL:Remove( self )

run_stuff( )
old( self )

end
[/lua]

Try that.

Also, you have put your function inside of it, right?