Как изменить фон Inputbox - VB

Option Explicit
 
Private Const HH_DISPLAY_TOPIC = &H0
Private Const HH_HELP_CONTEXT = &HF
 
Private HelpFile As String
 
Private Declare Function HtmlHelp Lib "hhctrl.ocx" Alias "HtmlHelpA" (ByVal hwndCaller As Long, _
        ByVal pszFile As String, ByVal uCommand As Long, ByVal dwData As Long) As Long
 
Private lbPrompt  As Label
Private WithEvents cmdCancel As CommandButton
Private WithEvents cmdHelp As CommandButton
Private WithEvents cmdOK As CommandButton
Private txtInput As TextBox
 
Private Sub cmdCancel_Click()
    txtInput.Text = ""
    Me.Hide
End Sub
 
Private Sub cmdHelp_Click()
    On Error Resume Next
    If Len(Dir(HelpFile)) > 0 Then
        Call HtmlHelp(Me.hWnd, HelpFile, HH_HELP_CONTEXT, 1)
    Else
        Call MsgBox("Unable to display help!", vbExclamation + vbOKOnly, App.Title)
    End If
End Sub
 
Private Sub cmdOK_Click()
    Me.Hide
End Sub
 
Public Function InputBox(ByVal Prompt As String, Optional ByVal Title As String, Optional ByVal Default As String, _
        Optional ByVal XPos As Integer, Optional ByVal YPos As Integer, Optional ByVal Help As String, _
        Optional ByVal Context As Integer) As String
    With Me
        .Caption = IIf(Len(Title) > 0, Title, App.Title)
        .Left = IIf(XPos > 0, XPos, (Screen.Width - Me.Width) / 2)
        .Top = IIf(YPos > 0, YPos, (Screen.Height - Me.Height) / 2)
    End With
    lbPrompt.Caption = Prompt
    txtInput.Text = Default
    If Len(Help) > 0 Then
        HelpFile = Help
        cmdHelp.Visible = True
    End If
    Me.Show vbModal
    InputBox = txtInput.Text
End Function
 
Private Sub Form_Initialize()
    With Me
        .BorderStyle = 3
        .Icon = LoadPicture("")
        .ScaleMode = 3
        .Height = 2250
        .Width = 5490
    End With
    Set lbPrompt = Controls.Add("VB.Label", "lbPrompt")
    With lbPrompt
        .Left = 8
        .Top = 8
        .Height = 80
        .Width = 275
        .WordWrap = True
        .Visible = True
    End With
    Set cmdOK = Controls.Add("VB.CommandButton", "cmdOK")
    With cmdOK
        .Default = True
        .Left = 292
        .Top = 8
        .Height = 23
        .Width = 60
        .Caption = "OK"
        .Visible = True
    End With
    Set cmdCancel = Controls.Add("VB.CommandButton", "cmdCancel")
    With cmdCancel
        .Cancel = True
        .Left = 292
        .Top = 36
        .Height = 23
        .Width = 60
        .Caption = "Cancel"
        .Visible = True
    End With
    Set cmdHelp = Controls.Add("VB.CommandButton", "cmdHelp")
    With cmdHelp
        .Left = 292
        .Top = 64
        .Height = 23
        .Width = 60
        .Caption = "Help"
        .Visible = False
    End With
    Set txtInput = Controls.Add("VB.TextBox", "txtInput")
    With txtInput
        .Left = 7
        .Top = 96
        .Height = 20
        .Width = 344
        .Visible = True
    End With
End Sub
 
Private Sub Form_QueryUnload(Cancel As Integer, UnloadMode As Integer)
    If UnloadMode = 0 Then
        Cancel = True
        Me.Hide
    End If
End Sub