If you want to store or to retrieve information from any other part of the registry, you must use the Windows API. Because the Windows API provides such granular control over the operating system, you might want to call several functions to accomplish a single task. There are several ...
not allow. For example VBA has no intrinsic ability to retrieve information about the amount of free memory available but you can easily do this with an API call. Windows itself includes a number of DLLs with hundreds of useful functions. These functions are collectively called the Windows API...
VBA provides almost no native support for operations involving system information; because Windows itself provides easy-to-call API functions for determining and controlling the environment, VBA doesn't have to duplicate that functionality. Of course, some of the API functions are tricky to call, an...
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。適用...
Double-click ThisAddin.vb to open the code window. (You’ll also need to add a reference to the System.Deployment assembly. This is not required by VSTO in order to deploy, but for the sample code to display the ClickOnce version information, you need to use some functions in ...
And as in the previous example, you must call different versions of the Windows API functions. To do this, the Win64 compilation constant is available as shown in the following example.VBA Copy ' Test whether you are using the 64-bit version of Office 2010. #If Win64 Then Declare ...
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 ...
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 VBA enables you to crea...
第1个:DispCallFunc方案 vbforums论坛高人Lavolpe写的类cUniversalDLLCalls.cls,理论上支持9种调用约定 ' for documentation on the main API DispCallFunc... http://msdn.microsoft.com/en-us/library/windows/desktop/ms221473%28v=vs.85%29.aspx ...
PrintConsole "Press Enter To Close The Demo" Call ConsoleRead '释放内存并关闭控制台程序,参考API函数声明⑤,进行设计思路(5) FreeConsole End Sub '向控制台输出内容的子程序 Private Sub PrintConsole(szOut As String) WriteConsole hConsoleOut, szOut, Len(szOut), vbNull, vbNull '参考API函数声明⑥...