disablerbutton.bas

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Attribute VB_Name = "DisableRButton"
Private Declare Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal Msg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Private Const GWL_WNDPROC = (-4)
Private Const WM_RBUTTONDOWN = &H204

Private m_lpPrevDisableRButtonDownWindowProc As Long

Function DisableRButtonDownWindowProc(ByVal hwnd As Long, ByVal uMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
    If uMsg = WM_RBUTTONDOWN Then
        Exit Function
    End If
   DisableRButtonDownWindowProc = CallWindowProc(m_lpPrevDisableRButtonDownWindowProc, hwnd, uMsg, wParam, lParam)
End Function

Public Function HookText(ByVal hwnd As Long) As Boolean
     m_lpPrevDisableRButtonDownWindowProc = SetWindowLong(hwnd, GWL_WNDPROC, AddressOf DisableRButtonDownWindowProc)
End Function

Public Function UnHookText(ByVal hwnd As Long) As Boolean
    Call SetWindowLong(hwnd, GWL_WNDPROC, m_lpPrevDisableRButtonDownWindowProc)
End Function