VB.NET是如何關(guān)閉窗體

VB.NET關(guān)閉當前窗體me.close()

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其它窗體用:窗體名.close()，例如：form2.close()

VB2008 如何取消窗體的關(guān)閉按鈕

設(shè)置ControlBox為False是可以的，不過全部按鈕都會消失（包括最小化，最大化）

用API可以單獨把關(guān)閉按鈕干掉……

'VB.NET Code

Public Class Form1

Private Declare Function GetSystemMenu Lib "User32 " (ByVal hwnd As Integer, ByVal bRevert As Long) As Integer

Private Declare Function RemoveMenu Lib "User32 " (ByVal hMenu As Integer, ByVal nPosition As Integer, ByVal wFlags As Integer) As Integer

Private Declare Function DrawMenuBar Lib "User32 " (ByVal hwnd As Integer) As Integer

Private Declare Function GetMenuItemCount Lib "User32 " (ByVal hMenu As Integer) As Integer

Private Const MF_BYPOSITION = H400

Private Const MF_DISABLED = H2

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim hMenu As Integer, nCount As Integer

hMenu = GetSystemMenu(Me.Handle.ToInt32, 0)

nCount = GetMenuItemCount(hMenu)

'Debug.Print(nCount)

Call RemoveMenu(hMenu, nCount - 1, MF_DISABLED Or MF_BYPOSITION)

DrawMenuBar(Me.Handle.ToInt32)

End Sub

End Class

'VB6 code =============================================================

Private Declare Function GetSystemMenu Lib "User32 " (ByVal hwnd As Long, ByVal bRevert As Long) As Integer

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 Form1_Load()

Dim hMenu As Long, nCount As Long

hMenu = GetSystemMenu(Me.hWnd, 0)

nCount = GetMenuItemCount(hMenu)

'Debug.Print nCount

Call RemoveMenu(hMenu, nCount - 1, MF_DISABLED Or MF_BYPOSITION)

DrawMenuBar Me.hWnd

End Sub

vb.net中窗體中的縮小,放大,關(guān)閉可以去掉嗎?

可以，屬性controlBox 為false可以去掉三個按鈕，另外還有maximize,minimize 可以分別控制最大化和最小化按鈕的顯示。

vb.net如何打開一個新窗體后關(guān)閉上一個窗體

1、如果上一個窗體是程序的主窗體（默認是程序的第一個窗體），

則不能關(guān)閉這個窗體，只能隱藏（Me.Hide()）這個窗體，否則整

個程序就被關(guān)掉了。

2、如果上一個窗體不是程序的主窗體，可以用Me.Close()

關(guān)閉。

VB.NET 窗體關(guān)閉問題 用的是vs2013

首先這個應(yīng)該放在 FormClosing 事件中。

其次，因為你 Else 之后沒有忽略窗體關(guān)閉的請求。

應(yīng)該再加一句 e.Cancel = True，表示告訴系統(tǒng)，我取消關(guān)閉窗體這個操作了。