TextBox

ps1

Add-Type -AssemblyName System.Windows.Forms

$form = New-Object System.Windows.Forms.Form
$form.Text = "タイトル"
$form.Size = New-Object System.Drawing.Size(600, 200)

$textBox = New-Object System.Windows.Forms.TextBox
$textBox.Location = New-Object System.Drawing.Point(10,10)
$textBox.Width = 350
$textBox.Anchor = "Top, Left, Right"
$form.Controls.Add($textBox)

[void]$form.ShowDialog()