'Usage
Dim title As String
Dim caption As String
Dim findText As String
Dim findCallback As InputBox.FindProc
Dim startPosition As Integer
Dim instance As New InputBox(title, caption, findText, findCallback, startPosition)
Parameters
title
Window title.
caption
Explanatory text shown at top of window.
findText
Initial text to populate edit box with.
findCallback
Method to call when Find button is clicked.
startPosition
An integer passed to FindProc, used to provide context for a search operation.
When this constructor is used, a Find button is shown instead of an OK button. When the Find button
is clicked, the given FindProc method is called and the window is not closed.