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this.ControlBox = false//最小化、最大化、关闭按钮全部消失
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this.MinimizeBox = false//最小化按钮消失
this.MaximizeBox = false//最大化按钮消失
如果你只想隐藏关闭按钮的话可以参考
如果用户单击 Cancel(取消),则InputBox函数返回一个长度为零的字符串 (""),可以根zhidao据这个情况进行判断,如果BH="",则用户按内了“取消容”键,但如果用户把输入的内容清空,这时按“确定”和按“取消”一样,都返回一个长度为的字符串。
问题补充:我用VB.NET写的,FORM2用来实现数据采样并显示实时曲线,关闭后再'取消FORM2的关闭 这样就把FORM2隐藏起来了,需要调出来的时候只需以下代码
设置ControlBox为False是可以的,不过全部按钮都会消失(包括最小化,最大化)
用API可以单独把关闭按钮干掉……
'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
Private Sub Form2_FormClosed(sender As Object, e As FormClosedEventArgs) Handles Me.FormClosed
End '退出后关闭软件
End Sub
'点击关闭按钮时弹出对话框判断是否退出
Private Sub Form2_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
'经典判断关闭法
If MessageBox.Show("是否退出?", "确认", MessageBoxButtons.OKCancel, MessageBoxIcon.Question,
MessageBoxDefaultButton.Button2) = Windows.Forms.DialogResult.Cancel Then
e.Cancel = True
Else
e.Cancel = False
End If
End Sub
把窗体的ControlBox 属性设为False
点关闭就是卸载窗体,如果程序只有一个窗体自动结束
退出当前窗体(精确到实例):Unload Me
退出程序:End