VB6 Code - Disable Button X atau Tombol Close Pada MDI

Kode untuk mendisable button x atau tombol close pada MDI form - Di bawah ini merupakan cara menghilangkan button 'x' atau tombol close pada MDI Form.

'simpan kode di bawah pada module 
Option Explicit  

Private Declare Function DeleteMenu Lib "user32" ByVal hMenu As Long, ByVal nPosition As Long, ByVal wFlags As Long) As Long  
Private Declare Function GetSystemMenu Lib "user32" ByVal hwnd As Long, ByVal bRevert As Long) As Long  

Private Const MF_BYPOSITION = &H400&  
 
Dim hMenu As Long  

Public Sub RemoveMenus(frm As Form, Optional brestore As Boolean, Optional bmove As Boolean, Optional bsize As Boolean, Optional bminimize As Boolean, Optional bmaximize As Boolean, Optional bseperator As Boolean, Optional bclose As Boolean)  
    hMenu = GetSystemMenu(frm.hwnd, False)  
    If bclose Then DeleteMenu hMenu, 6, MF_BYPOSITION  
    If bseperator Then DeleteMenu hMenu, 5, MF_BYPOSITION  
    If bmaximize Then DeleteMenu hMenu, 4, MF_BYPOSITION  
    If bminimize Then DeleteMenu hMenu, 3, MF_BYPOSITION  
    If bsize Then DeleteMenu hMenu, 2, MF_BYPOSITION  
    If bmove Then DeleteMenu hMenu, 1, MF_BYPOSITION  
    If brestore Then DeleteMenu hMenu, 0, MF_BYPOSITION  
End Sub  

Contoh penggunaan kode di atas:

'simpan kode di bawah pada MDI Form.  
Option Explicit  

Private Sub MDIForm_Load()  
   'nilai true untuk remove, sesuaikan kodenya! 
   RemoveMenus Me, , , , , , True, True 
End Sub  

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VB6 Code - Cara Menampilkan ToolTipText Pada ListBox

Mengenai cara menampilkan ToolTipText pada saat pointer mouse bergerak di atas ListItem ListBox menggunakan VB6 Code. Adapun cara menampilkan ToolTipText pada ListBox adalah sebagai berikut:

Option Explicit 
 
Private Type POINTAPI 
    x As Long 
    Y As Long
End Type 
 
Private Declare Function ClientToScreen Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long 
Private Declare Function LBItemFromPt Lib "COMCTL32.DLL" (ByVal hLB As Long, ByVal ptX As Long, ByVal ptY As Long, ByVal bAutoScroll As Long) As Long 
Private Declare Function SendMessageByNum Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long 
 
Private WithEvents lst As ListBox 
Private Const LB_SETHORIZONTALEXTENT = &H194 
 
Public Property Let List(New_List As ListBox) 
    Set lst = New_List 
End Property 
     
Private Sub lst_MouseMove(Button As Integer, Shift As Integer, x As Single, Y As Single) 
    '    lst.ListIndex = ItemUnderMouse(lst.hwnd, X, Y) 
    Dim l As Long 
    Dim a As Long
    a = lst.Parent.TextWidth(lst.List(ItemUnderMouse(lst.hwnd, x, Y))) / Screen.TwipsPerPixelX
    l = lst.Parent.TextWidth("AAAAAAAAAAAAAAAAAAAAAAA") / Screen.TwipsPerPixelX 
    If a > l Then 
        If lst.ToolTipText <> lst.List(ItemUnderMouse(lst.hwnd, x, Y)) Then
            lst.ToolTipText = lst.List(ItemUnderMouse(lst.hwnd, x, Y))
        End If 
    Else
        lst.ToolTipText = ""
    End If 
End Sub 
     
' Return the index of the item under the mouse. 
Public Function ItemUnderMouse(ByVal list_hWnd As Long, ByVal x As Single, ByVal Y As Single) 
    Dim pt As POINTAPI 
    pt.x = x \ Screen.TwipsPerPixelX 
    pt.Y = Y \ Screen.TwipsPerPixelY 
    ClientToScreen list_hWnd, pt 
    ItemUnderMouse = LBItemFromPt(list_hWnd, pt.x, pt.Y, False)
End Function 

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VB6 Code - Mengisi ListBox Atau ComboBox Dengan File

Mengenai cara mengisi ListBox atau ComboBox dengan seluruh isi file menggunakan VB6 Code. Adapun cara mengisi ListBox atau ComboBox dengan isi seluruh file adalah sebagai berikut: 

Public Sub LoadFileToComboOrList(FileName As String, obj As Object) 
    Dim s As String 
    Dim InFile As Integer   ' Descriptor for file. 
    InFile = FreeFile 
    Open FileName For Input As InFile 
        While Not EOF(InFile) 
            Line Input #InFile, s 
            obj.AddItem s 
        Wend 
    Close InFile 
End Sub 

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VB6 Code - Fungsi Untuk Baca Tulis File .INI

Mengenai fungsi untuk baca tulis file .INI menggunakan VB6 Code - Adapun prosedure VB6 untuk baca tulis file .INI adalah sebagai berikut:

Option Explicit 
 
Private Declare Function WriteProfileString Lib "kernel32" Alias "WriteProfileStringA" (ByVal lpszSection As String, ByVal lpszKeyName As String, ByVal lpszString As String) As Long 
Private Declare Function GetProfileString Lib "kernel32" Alias "GetProfileStringA" (ByVal lpAppName As String, ByVal lpKeyName As String, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long) As Long 
Private Declare Function WritePrivateProfileString Lib "kernel32" Alias   "WritePrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpString As Any, ByVal lpFileName As String) As Long 
Private Declare Function GetPrivateProfileString Lib "kernel32" Alias "GetPrivateProfileStringA" (ByVal lpApplicationName As String, ByVal lpKeyName As Any, ByVal lpDefault As String, ByVal lpReturnedString As String, ByVal nSize As Long, ByVal lpFileName As String) As Long 
 
Public Function ReadIni(ByVal strSection As String, ByVal strKey As String, ByVal strDefault As String, ByVal strFileName As String) As String 
    Dim intRes As Integer, strRet As String 
    strRet = Space$(32400) 
    intRes = GetPrivateProfileString(strSection, strKey, strDefault, strRet, Len(strRet), strFileName) 
    ReadIni = Left$(strRet, intRes) 
End Function 
 
Public Sub WriteIni(ByVal strSection As String, ByVal strKey As String, ByVal strSetting As Variant, ByVal strFileName As String) 
    WritePrivateProfileString strSection,   strKey, CStr(strSetting), strFileName 
End Sub 
 
Public Function ReadWinIni(strSection As String, strKey As String) As String 
    Dim Result As String * 128 
    Dim Temp As Integer 
    Temp = GetProfileString(strSection, strKey, "", Result, Len(Result)) 
    ReadWinIni = Left$(Result, Temp) 
End Function 
 
Public Sub WriteWinIni(strSection As String, strKey As String, strSetting As String) 
    WriteProfileString strSection, strKey,   strSetting 
End Sub 

Contoh penggunaan kode di atas:

Private Sub Command1_Click() 
    If Combo1.ListIndex < 0 Then 
        MsgBox "You must select the combo first!" 
        Exit Sub 
    End If 
    WriteIni "EXE", "EXE", Combo1.ListIndex, App.Path & "\windows.ini" 
    MsgBox "Run Again and look the change!" 
    Unload Me 
End Sub 
 
Private Sub Form_Load() 
    Me.WindowState = ReadIni("EXE", "EXE", 0, App.Path & "\windows.ini") 
    With Combo1 
        .AddItem "Normal" 
        .AddItem "Minimized" 
        .AddItem "Maximized" 
    End With 
End Sub 

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