去掉窗体的关闭按钮

答案：
去掉窗体的关闭按钮
Private Declare Function GetSystemMenu Lib "User32" (ByVal hwnd As  Long, ByVal bRevert As Long) As Long
 Private Declare Function RemoveMenu Lib "User32" (ByVal hMenu As Long,  ByVal nPosition As Long, ByVal wFlags As Long) As Long
 Private Declare Function DrawMenuBar Lib "User32" (ByVal hwnd As Long)  As Long
 Private Declare Function GetMenuItemCount Lib "User32" (ByVal hMenu As  Long) As Long
 Private Const MF_BYPOSITION = &H400&
 Private Const MF_DISABLED = &H2&
 
Private Sub Form_Load()
 Call DisableX(Me)
 End Sub
 
Private Sub DisableX(Frm As Form)
 Dim hMenu As Long, nCount As Long
 hMenu = GetSystemMenu(Frm.hwnd, 0)
 nCount = GetMenuItemCount(hMenu)
 Call RemoveMenu(hMenu, nCount - 1, MF_DISABLED Or MF_BYPOSITION)
 DrawMenuBar Frm.hwnd
 End Sub
 

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