Question Windows form condition

Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing

$Menu = New-Object Windows.Forms.Form
$Menu.FormBorderStyle = "FixedDialog"
$Menu.text = "Form"
$Menu.Size = New-Object Drawing.Point (1000,700)
$Menu.StartPosition = 'CenterScreen'
$Menu.ControlBox = $false

$Button = New-Object System.Windows.Forms.Button
$Button.Location = New-Object System.Drawing.Point (758,586)
$Button.Size = New-Object System.Drawing.Size (200,50)
$ButtonSelectionLaunch.Text = "OK"
$Menu.AcceptButton = $Button

$Button.Add_Click({
Script
})

$Menu.ShowDialog()