Problem with Interger

Function WriteIt()
        Dim mem As New memory_Jorndel
        mem.Process_Handle("hl2")
        mem.WriteInteger("&1078F1F8", 1)

    End Function

Imports System.Runtime.InteropServices
Imports System.Text

Public Class memory_Jorndel
#Region "Basic Stuff"
    <DllImport("kernel32.dll")> _
    Private Shared Function ReadProcessMemory(ByVal hProcess As IntPtr, ByVal lpBaseAddress As IntPtr, <[In](), Out()> ByVal buffer As Byte(), ByVal size As UInt32, ByRef lpNumberOfBytesWritten As IntPtr) As Int32
    End Function
    <DllImport("kernel32.dll")> _
    Private Shared Function WriteProcessMemory(ByVal hProcess As IntPtr, ByVal lpBaseAddress As IntPtr, <[In](), Out()> ByVal buffer As Byte(), ByVal size As UInt32, ByRef lpNumberOfBytesWritten As IntPtr) As Int32
    End Function
    <DllImport("user32.dll", CharSet:=CharSet.Auto, ExactSpelling:=True)> _
    Public Shared Function GetKeyState(ByVal virtualKeyCode As Keys) As Short
    End Function
    Private pHandel As IntPtr
    Public Function Process_Handle(ByVal ProcessName As String) As Boolean
        Try
            Dim ProcList As Process() = Process.GetProcessesByName(ProcessName)
            If ProcList.Length = 0 Then
                Return False
            Else
                pHandel = ProcList(0).Handle
                Return True
            End If
        Catch ex As Exception
            Console.Beep()
            Console.WriteLine("Process_Handle - " + ex.Message)
            Return False
        End Try
    End Function
    Private Function Read(ByVal Address As Integer, ByVal Length As Integer) As Byte()
        Dim Buffer As Byte() = New Byte(Length - 1) {}
        Dim Zero As IntPtr = IntPtr.Zero
        ReadProcessMemory(pHandel, New IntPtr(Address), Buffer, UInt32.Parse(Buffer.Length), Zero)
        Return Buffer
    End Function
    Private Sub Write(ByVal Address As Integer, ByVal Value As Integer)
        Dim Buffer As Byte() = BitConverter.GetBytes(Value)
        Dim Zero As IntPtr = IntPtr.Zero
        WriteProcessMemory(pHandel, New IntPtr(Address), Buffer, UInt32.Parse(Buffer.Length), Zero)
    End Sub
#End Region

    'This is the part you want to edit
#Region "Write Functions (Integer & String)"
    Public Sub WriteInteger(ByVal Address As Integer, ByVal Value As Integer)
        Write(Address, Value)
    End Sub
    Public Sub WriteString(ByVal Address As Integer, ByVal Text As String)
        Dim Buffer As Byte() = New ASCIIEncoding().GetBytes(Text)
        Dim Zero As IntPtr = IntPtr.Zero
        WriteProcessMemory(pHandel, New IntPtr(Address), Buffer, UInt32.Parse(Buffer.Length), Zero)
    End Sub
    Public Sub WriteBytes(ByVal Address As Integer, ByVal Bytes As Byte())
        Dim Zero As IntPtr = IntPtr.Zero
        WriteProcessMemory(pHandel, New IntPtr(Address), Bytes, CUInt(Bytes.Length), Zero)
    End Sub
    Public Sub WriteNOP(ByVal Address As Integer)
        Dim Buffer As Byte() = New Byte() {&H90, &H90, &H90, &H90, &H90}
        Dim Zero As IntPtr = IntPtr.Zero
        WriteProcessMemory(pHandel, New IntPtr(Address), Buffer, UInt32.Parse(Buffer.Length), Zero)
    End Sub
    Public Sub WriteFloat(ByVal Address As Integer, ByVal Float As Single)
        Dim Buffer As Byte() = BitConverter.GetBytes(Float)
        Dim Zero As IntPtr = IntPtr.Zero
        WriteProcessMemory(pHandel, New IntPtr(Address), Buffer, 4, Zero)
    End Sub
#End Region
#Region "Read Functions (Integer & String)"
    Public Function ReadInteger(ByVal Address As Integer, Optional ByVal Length As Integer = 4) As Integer
        Return BitConverter.ToInt32(Read(Address, Length), 0)
    End Function
    Public Function ReadString(ByVal Address As Integer, Optional ByVal Length As Integer = 4) As String
        Return New ASCIIEncoding().GetString(Read(Address, Length))
    End Function
    Public Function ReadBytes(ByVal Address As Integer, ByVal Length As Integer) As Byte()
        Return Read(Address, Length)
    End Function
#End Region
#Region "Extra"
    Public Function HotKey(ByVal Key As Keys) As Boolean
        Return Convert.ToBoolean(GetKeyState(Key))
    End Function
    Private Check_res As Boolean = True
    Public Function Check_Value(ByVal Value As String) As Integer
        For Each a As Char In Value
            If Char.IsNumber(a, 0) Then
                Check_res = True
            Else
                Check_res = False
                Return 0
                Exit For
            End If
        Next
        Return Convert.ToInt32(Value)
    End Function
#End Region
End Class