本題考查了FindWindowEx、GetParent、GetNextWindow這3個API函式的理解和掌握程度。

假設有一個視窗的控制代碼結構樹如下圖所示：

執行下面的Test()過程，立即視窗中的4個結果分別是什麼？

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Private Declare Function FindWindowEx Lib "user32" Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, ByVal lpsz1 As String, ByVal lpsz2 As
 
 String) As Long
Private Declare Function GetParent Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function GetNextWindow Lib "user32" Alias "GetWindow" (ByVal hwnd As Long, ByVal wFlag As Long) As Long
Private Const GW_HWNDFIRST = 0
Private Const GW_HWNDLAST = 1
Private Const GW_HWNDNEXT = 2
 

Private Const GW_HWNDPREV = 3

Sub Test()
    Dim h(0 To 10) As Long
    h(0) = 264990
    h(1) = FindWindowEx(h(0), 264988, "Button", vbNullString)
    h(2) = GetParent(h(0))
    h(3) = GetNextWindow(264988, GW_HWNDPREV)
    h(4) = GetNextWindow(264988, GW_HWNDFIRST)
    Debug.Print h(1), h(2), h(3), h(4
 
)
End Sub