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Option Explicit
Private Declare PtrSafe Function GetWindowLong Lib "user32" Alias "GetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long) As Long
Private Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Private Declare PtrSafe Function SetWindowLong Lib "user32" Alias "SetWindowLongA" (ByVal hWnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Private Const GWL_STYLE = (-16)
Private Const WS_THICKFRAME As Long = &H40000 '(恢复大小)
Private Const WS_MINIMIZEBOX As Long = &H20000 '(最小化)
Private Const WS_MAXIMIZEBOX As Long = &H10000 '(最大化)
'窗体UserForm的初始化
Private Sub UserForm1_Initialize()
Dim hWndForm As Long
Dim IStyle As Long
hWndForm = FindWindow("ThunderDFrame", Me.Caption)
IStyle = GetWindowLong(hWndForm, GWL_STYLE)
IStyle = IStyle Or WS_THICKFRAME '还原
IStyle = IStyle Or WS_MINIMIZEBOX '最小化
IStyle = IStyle Or WS_MAXIMIZEBOX '最大化
SetWindowLong hWndForm, GWL_STYLE, IStyle
End Sub
按这个代码运行,没有出现最大最小按钮,请问是怎么回事呢! |
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