VB.NET如何使最大化關(guān)閉按鈕消失

this.ControlBox?=?false//最小化、最大化、關(guān)閉按鈕全部消失

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this.MinimizeBox?=?false//最小化按鈕消失

this.MaximizeBox?=?false//最大化按鈕消失

如果你只想隱藏關(guān)閉按鈕的話可以參考

VB.net如何判斷用戶是否按了inputbox對(duì)話框的取消按鈕？

如果用戶單擊 Cancel（取消），則InputBox函數(shù)返回一個(gè)長度為零的字符串 ("")，可以根zhidao據(jù)這個(gè)情況進(jìn)行判斷，如果BH=""，則用戶按內(nèi)了“取消容”鍵，但如果用戶把輸入的內(nèi)容清空，這時(shí)按“確定”和按“取消”一樣，都返回一個(gè)長度為的字符串。

vb.net讓窗口關(guān)閉時(shí),取消關(guān)閉,隱藏窗口

問題補(bǔ)充：我用VB.NET寫的，F(xiàn)ORM2用來實(shí)現(xiàn)數(shù)據(jù)采樣并顯示實(shí)時(shí)曲線，關(guān)閉后再'取消FORM2的關(guān)閉 這樣就把FORM2隱藏起來了，需要調(diào)出來的時(shí)候只需以下代碼

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(huì)消失（包括最小化，最大化）

用API可以單獨(dú)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，右上角的關(guān)閉按鈕走的什么事件

Private?Sub?Form2_FormClosed(sender?As?Object,?e?As?FormClosedEventArgs)?Handles?Me.FormClosed

End????'退出后關(guān)閉軟件

End?Sub

'點(diǎn)擊關(guān)閉按鈕時(shí)彈出對(duì)話框判斷是否退出

Private?Sub?Form2_FormClosing(sender?As?Object,?e?As?FormClosingEventArgs)?Handles?Me.FormClosing

'經(jīng)典判斷關(guān)閉法

If?MessageBox.Show("是否退出？",?"確認(rèn)",?MessageBoxButtons.OKCancel,?MessageBoxIcon.Question,

MessageBoxDefaultButton.Button2)?=?Windows.Forms.DialogResult.Cancel?Then

e.Cancel?=?True

Else

e.Cancel?=?False

End?If

End?Sub

vb中如何把窗體的關(guān)閉按鈕去掉，怎樣設(shè)置這個(gè)關(guān)閉按鈕是退出窗體還是退出整個(gè)程序

把窗體的ControlBox 屬性設(shè)為False

點(diǎn)關(guān)閉就是卸載窗體,如果程序只有一個(gè)窗體自動(dòng)結(jié)束

退出當(dāng)前窗體(精確到實(shí)例):Unload Me

退出程序:End

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