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Display a PopUp Menu when a ListBox Item is Right-Clicked

This is an example of how to display a pop-up menu when a list box item is right clicked.
Refer to the comments for instructions regarding how to implement it in your own projects.

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, 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

l = 0
clickX = X \ Screen.TwipsPerPixelX
clickY = Y \ Screen.TwipsPerPixelY
Do While True

'get current selection as rectangle
lRet = SendMessage(MyList.hwnd, LB_GETITEMRECT, l, CurRect)

'If error, or no selection, bye-bye
If lRet < 1 Then
GetRClickedItem = LB_ERR
Exit Function
End If

If (clickX >= CurRect.Left) And (clickX <= CurRect.Right) _
And (clickY >= CurRect.Top) And (clickY <= CurRect.Bottom) Then

GetRClickedItem = l
Exit Function
End If

l = l + 1
Loop
End Function

'BELOW IS AN EXAMPLE OF HOW TO POPUP A MENU USING THE ABOVE
'FUNCTION

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) 'USE YOUR OWN LISTBOX
'AS THE FIRST PARAMETER
If lItem <> -1 Then
List1.ListIndex = lItem
PopupMenu mnuPopup 'USE YOUR OWN POPUP MENU HERE
End If
End If

End Sub		 Display a PopUp Menu when a ListBox Item is Right-

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