Option Explicit
Private Declare Function SendMessage Lib “user32″ Alias _
“SendMessageA” (ByVal hwnd As Long, ByVal wMsg As Long, _
ByVal wParam As Long, lParam As Any) As Long
Private Const LB_GETITEMRECT = &H198
Private Const LB_ERR = (-1)
Private Type RECT
Left As Long
Top As Long
Right As Long
Bottom As Long
End Type
Public Function GetRClickedItem(MyList As Control, _
X As Single, Y As Single) As Long
‘PURPOSE: Determine which item was right clicked in a list
‘box, from the list_box’s mouse down event. YOU MUST CALL THIS
‘FROM THE MOUSEDOWN EVENT, PASSING THE X AND Y VALUES FROM THAT
‘EVENT TO THIS FUNCTION
‘MYLIST: ListBox Control
‘X, Y: X and Y position from MyList_MouseDown
‘RETURNS: ListIndex of selected item, or -1 if
‘a) There is no selected item, or b) an error occurs.
Dim clickX As Long, clickY As Long
Dim lRet As Long
Dim CurRect As RECT
Dim l As Long
‘Control must be a listbox
If Not TypeOf MyList Is ListBox Then
GetRClickedItem = LB_ERR
Exit Function
End If
‘get x and y in pixels
clickX = X Screen.TwipsPerPixelX
clickY = Y Screen.TwipsPerPixelY
‘Check all items in the list to see if it was clicked on
For l = 0 To MyList.ListCount – 1
‘get current selection as rectangle
lRet = SendMessage(MyList.hwnd, LB_GETITEMRECT, l, CurRect)
‘If the position of the click is in the this list item
‘then that’s our Item
If (clickX >= CurRect.Left) And (clickX = CurRect.Top) And _
(clickY <= CurRect.Bottom) Then
GetRClickedItem = l
Exit Function
End If
Next l
End Function
Private Sub Form_Load()
List1.AddItem “Merah”
List1.AddItem “Kuning”
List1.AddItem “Hijau”
mnuPopUp.Visible = False
End Sub
Private Sub List1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim lItem As Long
If Button = vbRightButton Then
lItem = GetRClickedItem(List1, X, Y)
If lItem -1 Then
List1.ListIndex = lItem
PopupMenu mnuPopUp
End If
End If
End Sub
