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Private Declare PtrSafe Function RegSetValueExLong Lib "advapi32.dll" Alias "RegSetValueExA" (ByVal hKey As LongPtr, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, lpData As LongPtr, ByVal cbData As LongPtr) As Long Private Declare PtrSafe Function RegSetValueExA Lib "advapi32.dll" (ByVal hKey As LongPtr, ByVal lpValueName As String, ByVal Reserved As Long, ByVal dwType As Long, ByRef lpData As LongPtr, ByVal cbData As LongPtr) As Long Private Declare PtrSafe Function RegQueryValueEx Lib "advapi32.dll" Alias "RegQueryValueExA" (ByVal hKey As LongPtr, ByVal lpValueName As String, ByVal lpReserved As LongPtr, lpType As Long, lpData As Any, lpcbData As Long) As Long ' Note that if you declare the lpData parameter as String, you must pass it By Value. 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Excel VBA 中定时关闭的 MsgBox 一个未公开的API
了解 VBA 的朋友们都知道,VBA 中自带的 MsgBox 不能自动关闭,需要用户做出交互后才能关闭。但是在某些特定情况下,我们需要 Msgbox 在指定时间内没有用户操作的情况下自动关闭,然后继续运行代码。一般采取的方法是使用Wscript.Shell 的 Popup 方法,或者自定义窗体, 或者采用 SetTimer 等来实现。这里推荐一个未公开的 API 函数—— MessageBoxTimeout 实现定时关闭消息框,感觉十分有用, 这里为了方便我们把它的名称声明为 MsgBoxTimeout,将 wType 声明为 VbMsgBoxStyle。函数的声明如下(32位):Private Declare Function MsgBoxTimeout Lib "user32" Alias "MessageBoxTimeoutA" ( _ ByVal hwnd As Long, _ ByVal lpText As String, _ ByVal lpCaption As String, _ ByVal wType As VbMsgBoxStyle, _ ByVal wlange As Long, _ ByVal dwTimeout As Long) As Long此函数的参数如下: ◾hwnd:消息框拥有者窗口的句柄,可以设为 0 ◾lpText:消息框显示内容,类似于 MsgBox 函数的第一个参数 Prompt ◾lpCaption:消息框标题,类似于 MsgBox 函数的第三个参数 Caption ◾wType:消息框类型,类似于 MsgBox 函数的第二个参数 Buttons ◾wlange:函数扩展,一般取 0 ◾dwTimeout:消息框延迟关闭时间,单位为毫秒 返回的值和 vbMsgBoxResult 常数一样,多了一个返回值 32000 表示超过延时时间未选择任何按钮。具体例子见附件:点击链接从百度网盘下载示例代码如下: '**************************************** '---此模块演示一个可以延时关闭的消息框--- '**************************************** #If Win64 Then '64位 Private Declare PtrSafe Function MsgBoxTimeout _ Lib "user32" _ Alias "MessageBoxTimeoutA" ( _ ByVal hwnd As LongPtr, _ ByVal lpText As String, _ ByVal lpCaption As String, _ ByVal wType As VbMsgBoxStyle, _ ByVal wlange As Long, _ ByVal dwTimeout As Long) _ As Long #Else Private Declare Function MsgBoxTimeout _ Lib "user32" _ Alias "MessageBoxTimeoutA" ( _ ByVal hwnd As Long, _ ByVal lpText As String, _ ByVal lpCaption As String, _ ByVal wType As VbMsgBoxStyle, _ ByVal wlange As Long, _ ByVal dwTimeout As Long) _ As Long #End If Sub btnMsgbox_Click() Dim xRet As Long xRet = MsgBoxTimeout(0, "此对话框如无交互操作将在 2 秒后自动关闭", "ExcelFans.com", vbYesNo + vbInformation, 1, 2000) Select Case xRet Case 32000 Debug.Print "超时自动关闭" Case vbYes Debug.Print "选择""是""按钮" Case vbNo Debug.Print "选择""否""按钮" End Select End Sub
如何实现 Excel 文件执行完代码后把自身给删除了
有朋友需要一些另类的功能,比如让一个 Excel 文件执行完代码后把自身给删除了,其实 Excel 还真的可以做到,这是一段网上摘抄的代码, 可以让一个工作簿执行完代码后自己删除自己.附件下载:点击从百度网盘下载 具体代码:Sub CloseSelf() Application.DisplayAlerts = False ThisWorkbook.ChangeFileAccess xlReadOnly MsgBox "点击确定按钮我就把自己删除了哟 ^_^" Kill ThisWorkbook.FullName ThisWorkbook.Close False End Sub
Excel COUNTBLANK 函数 使用实例教程
COUNTBLANK 函数统计指定单元格区域中空白单元格的个数。Excel 2003+COUNTBLANK 函数统计指定区域中空白单元格的个数。空白单元格的个数。=COUNTBLANK(range) =COUNTBLANK(单元格区域) 参数 Range 必需。 需要计算的单元格区域。 要点 包含返回值为空文本(””)的公式的单元格,将计算为空白单元格。