(3)窗体代码: Option Explicit
Private Declare Function GetCursorPos Lib "user32.dll" (lpPoint As POINTAPI) As Long
Private Type POINTAPI X As Long Y As Long End Type
Dim menu As cMenu Private Sub Form_Load() ' 初始化菜单并添加菜单项 Set menu = New cMenu menu.CreateMenu menu.AddItem "open", LoadPicture("images\open.ico"), "打开", MIT_STRING menu.AddItem "save", LoadPicture("images\save.ico"), "保存", MIT_STRING menu.AddItem "print", LoadPicture("images\print.ico"), "打印", MIT_STRING menu.AddItem "find", LoadPicture("images\find.ico"), "查找", MIT_STRING menu.AddItem "sep1", LoadPicture(), "", MIT_SEPARATOR menu.AddItem "undo", LoadPicture("images\undo.ico"), "撤消", MIT_STRING menu.AddItem "redo", LoadPicture("images\redo.ico"), "重复", MIT_STRING menu.AddItem "sep2", LoadPicture(), "", MIT_SEPARATOR menu.AddItem "cut", LoadPicture("images\cut.ico"), "剪切", MIT_STRING menu.AddItem "copy", LoadPicture("images\copy.ico"), "复制", MIT_STRING menu.AddItem "paste", LoadPicture("images\paste.ico"), "粘贴", MIT_STRING menu.AddItem "sep3", LoadPicture(), "", MIT_SEPARATOR menu.AddItem "check", LoadPicture("images\check.ico"), "一个 CheckBox", MIT_CHECKBOX menu.AddItem "exit", LoadPicture("images\exit.ico"), "退出", MIT_STRING End Sub
Private Sub Form_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) ' 单击鼠标右建弹出菜单 If Button = vbRightButton Then Dim pos As POINTAPI GetCursorPos pos menu.PopupMenu pos.X, pos.Y, POPUP_LEFTALIGN Or POPUP_TOPALIGN End If End Sub
Private Sub Form_Unload(Cancel As Integer) ' 释放资源, 卸载窗体 Set menu = Nothing Dim frm As Form For Each frm In Forms Unload frm Next End Sub
Private Sub opnStyle_Click(Index As Integer) ' 设置菜单风格 Select Case Index Case 0 ' Windows 标准 menu.Style = STYLE_WINDOWS Case 1 ' XP 风格 menu.Style = STYLE_XP Case 2 ' 3D 立体风格 menu.Style = STYLE_3D Case 3 ' 渐变风格 menu.Style = STYLE_SHADE Case 4 ' 多彩风格 menu.Style = STYLE_COLORFUL End Select
End Sub 代码中创建了一个cMenu类的对象,我们的编程重点将会放在cMenu类上,上面的代码只是简单地调用cMenu。在后面的文章中,我们会看到其实cMenu有多达30个方法和属性供我们调用,它的Style属性只提供了5种内置风格,在实际应用中,我们可以利用cMenu类提供的方法和属性制作出各种各样风格的菜单,为自己的程序锦上添花。
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