模拟Windows中的记事本程序设计一个”记事本”应用程序
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Private Sub Form_Load() '设置程序大小
Form1.Height = 7700
Form1.Width = 11000
End Sub
Private Sub Form_Resize() '设置richtextbox属性 窗体大小改变会触发的事件
On Error Resume Next '如果出现错误,忽略错误,继续执行
RichTextBox1.Top = 900
RichTextBox1.Left = 20
RichTextBox1.Height = ScaleHeight - 40
RichTextBox1.Width = ScaleWidth - 40
End Sub
Private Sub MenuNew_Click() '新建
RichTextBox1.Text = "" '清空文本框
FileName = "未命名" '通过对话框获取的文件名为未命名
Form1.Caption = FileName
End Sub
Private Sub MenuOpen_Click() '打开
CommonDialog1.Filter = "文本文档(*.txt)|*.txt|RTF文档(*.rtf)|*.rtf|所有文件(*.*)|*.*" '文件格式
CommonDialog1.ShowOpen '显示打开文件对话框
RichTextBox1.Text = "" '清空文本框
FileName = CommonDialog1.FileName '定义文件名
RichTextBox1.LoadFile FileName
Form1.Caption = "记事本:" & FileName
End Sub
Private Sub MenuSave_Click() '保存
With CommonDialog1 '设置保存对话框
.DefaultExt = "txt" '设置保存文件的默认扩展名
.InitDir = "d:\" '设置初始目录
.FileName = "记事本.txt" '设置保存的默认文件名
.Filter = "文本文件|*.txt|all files(*.*)|*.*" '过滤文件类型
.FilterIndex = 1 '设置文件类型列表框默认为文本文件
.Action = 2 '设置通用对话框为另存为对话框
End With
Open CommonDialog1.FileName For Output As #1 '打开指定的文件写入数据
Print #1, RichTextBox1.Text '将整个文本框的内容一次性的写入文件
Close #1 '关闭#1号文件
End Sub
Private Sub MenuExit_Click() '退出
Dim result As Integer '定义整型
If Me.Caption = "新文件" And RichTextBox1.Text = "" Then '判断用户是否修改了文件
Unload Me
Else '若用户修改了文件,则弹出消息框询问用户是否要保存文件
result = MsgBox("您已经对文件作了修改,要保存吗?", vbYesNoCancel, "提示")
Select Case result '选择选定
Case 6 '单击了Yes按钮,是
MenuSave_Click
Case 2 '单击了Cancel按钮,取消
Exit Sub
Case 7 '单击了No按钮,否
Unload Me
End Select
End If
End Sub
Private Sub Form_Unload(Cancel As Integer) '退出
Dim result As Integer
If Me.Caption = "新文件" And RichTextBox1.Text = "" Then '判断用户是否修改了文件
Unload Me
Else '若用户修改了文件,则弹出消息框询问用户是否要保存文件
result = MsgBox("您已经对文件作了修改,要保存吗?", vbYesNoCancel, "提示")
Select Case result
Case 6 '单击了Yes按钮
MenuSave_Click
Case 2 '单击了Cancel按钮
Exit Sub
Case 7 '单击了No按钮
Unload Me
End Select
End If
End Sub
Private Sub MenuSelectAll_Click() '全选
RichTextBox1.SelStart = 0 '选取文本的起始位置
RichTextBox1.SelLength = Len(RichTextBox1.Text) '选取文本的字符个数
RichTextBox1.SetFocus '把光标移到指定的文本框中
End Sub
Private Sub MenuCut_Click() '剪切
Clipboard.Clear '清空剪贴板内容
Clipboard.SetText RichTextBox1.SelText '设置剪贴板内容为选定文本
RichTextBox1.SelText = "" '删除文本框中选定内容
End Sub
Private Sub MenuCopy_Click() '复制
Clipboard.Clear '清空剪贴板内容
Clipboard.SetText RichTextBox1.SelText '将选定文本复制到剪贴板
End Sub
Private Sub MenuPaste_Click() '粘贴
RichTextBox1.SelText = Clipboard.GetText '将剪贴板上的内容复制到文本框中
End Sub
Private Sub MenuFont_Click() '设置字体
CommonDialog1.Flags = cdlCFBoth Or cdlCFEffects 'cdlCFBoth 对话框列出可用的打印机和屏幕字体. cdlCFEffects 对话框允许删除线,下划线,以及颜色效果。
CommonDialog1.ShowFont '显示“字体”对话框
RichTextBox1.SelFontName = CommonDialog1.FontName '设置字体
RichTextBox1.SelFontSize = CommonDialog1.FontSize '设置字号
RichTextBox1.SelBold = CommonDialog1.FontBold '设置是否以粗体显示
RichTextBox1.SelItalic = CommonDialog1.FontItalic '设置是否以斜体显示
RichTextBox1.SelStrikeThru = CommonDialog1.FontStrikethru '设置是否显示删除线
RichTextBox1.SelUnderline = CommonDialog1.FontUnderline '设置是否显示下划线
RichTextBox1.SelColor = CommonDialog1.Color '设置字的颜色
End Sub
Private Sub MenuColor_Click() '背景颜色
CommonDialog1.Flags = 2 '打开完整的对话框
CommonDialog1.ShowColor '显示“颜色”对话框
RichTextBox1.BackColor = CommonDialog1.Color '背景颜色为通用对话框选定的颜色
End Sub
Private Sub RichTextBox1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
If Button = 2 Then '弹出式菜单
PopupMenu MenuEdit, vbPopupMenuLeftAlign '弹出式菜单显示编辑下拉菜单,鼠标在弹出式菜单左上角
Else
Exit Sub
End If
End Sub
Private Sub Toolbar1_ButtonClick(ByVal Button As MSComctlLib.Button) '工具条
On Error Resume Next '如果出现错误,忽略错误,继续执行
Select Case Button.Key '按关键字选择
Case "新建"
MenuNew_Click
Case "打开"
MenuOpen_Click
Case "保存"
MenuSave_Click
Case "剪切"
MenuCut_Click
Case "复制"
MenuCopy_Click
Case "粘贴"
MenuPaste_Click
Case "粗体"
RichTextBox1.SelBold = Not RichTextBox1.SelBold
Case "斜体"
RichTextBox1.SelItalic = Not RichTextBox1.SelItalic
Case "下划线"
RichTextBox1.SelUnderline = Not RichTextBox1.SelUnderline
Case "左对齐"
RichTextBox1.SelAlignment = 0
Case "居中"
RichTextBox1.SelAlignment = 2
Case "右对齐"
RichTextBox1.SelAlignment = 1
Case "字体设置"
MenuFont_Click
Case "背景颜色"
MenuColor_Click
End Select
End Sub
Private Sub MenuUsage_Click() 'ActiveX 公用帮助
With CommonDialog1
.HelpFile = "c:\windows\help\vbcmn96.hlp"
.HelpCommand = &HB Or cdlHelpSetContents
.ShowHelp
End With
End Sub
Private Sub MenuAbout_Click() '关于
MsgBox "记事本 土木分院 土0801-5 风云 制作", vbOKOnly, "关于" 'vbOKOnly 只显示 OK 按钮
End Sub
Private Sub Timer1_Timer() '自助计时器
Label1.FontSize = 24
Label1.FontName = "宋体"
Label1.Caption = "Time: " & Time
End Sub
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