Constant updating of a form in vb - vb.net

Question

Is there a way to constantly update a form? I have a game with 3 difficulties and you need a high score of atleast 5 to unlock the next difficulty, it works but for the difficulties to unlock you need to relaunch the application. Or i am guessing use a button to update the difficulties, This is the code i have on form load.
EHighScore = My.Computer.FileSystem.ReadAllText("EasyHighScore.txt")
MHighScore = My.Computer.FileSystem.ReadAllText("MediumHighScore.txt")
HHighScore = My.Computer.FileSystem.ReadAllText("HardHighScore.txt")
If EHighScore < 5 Then
MediumDifficulty.Enabled = False
MediumDifficulty.BackColor = Color.Gray
Else
MediumDifficulty.Enabled = True
MediumDifficulty.BackColor = Color.Black
End If
If MHighScore < 5 Then
HardDifficulty.Enabled = False
HardDifficulty.BackColor = Color.Gray
Else
HardDifficulty.Enabled = True
HardDifficulty.BackColor = Color.Black
End If
How would i make this run when the form opens when i close the end screen that displays the score the user got (plus highscore if they did beat the high score) I have tried to do MainMenu.Close() when opening the game but the same result happens as MainMenu.Hide()

Answer 1

You can create and manipulate the variables & use a timer tool to update changes of a form in real-time (set the interval to 1000ms).
For example, consider the following code:
Declaration:
Dim difficult As Boolean
Code:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
difficult = True
End If
And the timer:
Private Sub Timer1_Tick(...) Handles Timer1.Tick
if difficult = True Then
' ...
End If
End Sub
It will become easier for you to handle real-time things.
Caution: Don't use this trick which requires a network. Otherwise, it'll make your program unresponsive.