本逐步解說示範如何從活頁簿中的 Visual Basic for Applications (VBA) 程式碼,呼叫 Microsoft Office Excel 文件層級自訂中的方法。 這個程序和三個基本步驟相關:將方法加入Sheet1主項目類別、將方法公開至活頁簿中的 VBA 程式碼,然後從活頁簿中的 VBA 程式碼呼叫此方法。
此演练演示如何从工作簿的 Visual Basic for Applications (VBA) 代码调用 Microsoft Office Excel 文档级自定义项中的方法。 该过程包括三个基本步骤:向Sheet1主机项类添加方法、向工作簿中的 VBA 代码公开方法,然后从工作簿的 VBA 代码中调用该方法。
System errors during calls to Windowsdynamic-link libraries(DLL) or Macintosh code resources don't raise exceptions and cannot be trapped with Visual Basic error trapping. When calling DLL functions, you should check each return value for success or failure (according to the API specifications), ...
GetObject and CreateObject are functions that are provided by Microsoft Visual Basic and Microsoft Visual Basic for Applications (VBA). However, the information is also applicable to Microsoft Visual C++ if you treat references to GetObject as calls to the GetActiveObject API, and references to Crea...
WarningCalling the Windows API and other DLL functions can be hazardous to the health of your application. When you call a DLL function directly from your code, you bypass some of the safety mechanisms that VBA normally provides for you. If you make a mistake in defining or calling a DLL ...
Within this code you might make changes to the spreadsheet, call other VBA functions, access databases, or anything else. But you expect that the macros will run from beginning to end, and then complete.The asynchronous model is a little different. In this model, you write VBA functions, ...
可以使用 FormatMessage API 函数确定与自动化错误代码关联的消息文本。以下示例函数说明了如何使用 FormatMessage 获得消息文本: Option Explicit Const FORMAT_MESSAGE_FROM_SYSTEM = &H1000 Private Declare Function FormatMessage Lib "kernel32" Alias _ "FormatMessageA" ( ByVal dwFlags As Long, lpSource As Long...
DLL(动态链接库):DLL是一种包含可由多个程序同时使用的代码和数据的库。在Windows操作系统中,DLL文件通常包含函数、类和资源,可以被其他程序调用。 入口点(Entry Point):入口点是程序执行的起始位置。对于DLL来说,入口点通常是DllMain函数,但在C#中,这个概念有所不同,因为C# DLL通常是通过COM互操作或P/Invoke来调...
How to create a function that emulates Excel’s SUM function How to debug functions, deal with the Insert Function dialog box, and use add-ins to store custom functions How to call the Windows Application Programming Interface (API) to perform otherwise impossible feats ...
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