TheAceMan1 (Programmer) 18 Aug 09 20:25. If your procedure needs to wait for the shelled process to end, you can use the Windows API to poll the status of the application, but this is not very efficient. does not generate confirmation/result messages and it allowserror trapping. gemma you mention that the time may not be long enough, and that is something that is up to the person using the code to determine. http://www.mvps.org/access/api/api0021.htm, Wait while pdf opens and prints before proceding, How can i do for see to Label caption change, How to run a VBA Code on MS Access open event. Subroutine ShellAndWait uses Shell to launch another program. But I can write a VBA procedure that will open a table or query datasheet and wait -- in a clunky fashion -- until that form is closed Could you develop ? You need a 'Please Wait' function. Another thing you can do is loop in your code until the form is closed. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. vba wait function. And a quick note (sorry for a little redundancy I do hope that someonehelp me with this? The Windows API has integrated functionality that enables your application to wait until a shelled process has completed. Steps to use VBA Wait. One common way to do this is to use the DoEvents function in a loop while waiting, like this: Do DoEvents Loop Until (Now > datTarget) I've been searching the internet and found that people are using ShellAndWait and I've been trying to make that work, but I can't seem to get my syntax correct. Anyway, thank you once again for your help. First we have to establish the time that it is now - TWait = Time. How to help a successful high schooler who is failing in college? Some codes require some time before progressing to the next line of code due to completing other tasks. I would try putting a System Exit in your script to make it look like your script has "failed" and then detect the WAIT_FAILED. I know what I'll do: I'll export the macro to VBA code and see what is produced. Below is my code. Example 3: Using the VBA Wait function to create a program that tells time after every minute (till 10 loops). This will keep additional records from being created. On Error GoTo myerrorhandler. DoCmd.OpenForm "frmYourForm", , , , , acDialog 'Opening in Dialog Mode pauses the code until the form is closed. We'll use this method to wait until the process completes. does not work for the label does not always update but the Pause function does. Option Explicit Public Sub RunBatchFile() Dim strCommand As String Dim lngErrorCode As Long Dim wsh As WshShell Set wsh = New WshShell 'Run the batch file using the WshShell object strCommand = Chr(34) & _ "C:\wshshell-fun . The date if pushed to a cell location in file 1. Yes I believe WaitForSingleObject looks for very specific exit conditions. To pause a code, we use the Application.Wait method. Personally I think that is too much work. If you have multiple connections, you could loop through all connections with something to . Example #3 - VBA Timer. to get the list of properties and methods. First, use the keyword "Application" and type a dot (.) Code: Copy to clipboard. Only speaking from my personal experience, but I've always found that when you do a calculation then VBA waits for it to finish, although I normally use. db.Execute "query1", dbFailOnError * The table being queried (Table B) has about 65,000 records, so the query takes a few seconds. DoEvents returns zero in all other applications. For example one query is opened with the userrequired toenter a value and then, only once this query is It's just a shell being prompted. he db is reopened in its newly compacted state! That might be easier than trying to get it to register as a "success.". Significance of Wait and Sleep Functions in VBA: VBA Wait Function in Excel: Example 1: Pausing a code till 2.00 PM today. rev2022.11.3.43004. Do you know of any way (maybe a return value) to indicate when a particular query (opened with docmd.openquery) is closed? Or: repeatedly read PDF file until %%EOF appears in the end of the text. Also FAQ181-2886: How can I maximize my chances of getting an answer? If it is, he uses the DoEvents method to yield the macro until the system processes other events. vb.net sleep 1 second. here but ) since you can't program multi-threaded operations in Access (because multi-thread programming is not supported in the Access development environment) you can rest assured that the sequence in which your macros currently run IS sequential. The difference wih my case is that there isn't a proper application opening. I just want to provide a simply solution. We want the code to wait for that period. More specifically, in ShellAndWait. After that, select or type the "Wait" method. .Be sure to see thread181-473997: How To Get Good Answers To Your QuestionsWorthy Reading! Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. it did wait until the previous paste process finish, then the macro go on to the next loop. There is another easy way to see and show the current time in VBA. The following example illustrates how to use the OpenForm method to do this. Already a Member? Step 1: Go to the Developer tab and click on Visual Basic to open VB Editor. It is very similar to what we do in the Sleep command. 'Example of zipping multiple files into . Hi everybody, [Access 2010] I've seen conflicting answers online, so I thought I'd see what answers I would get here. Sleep Function: Example 1: Pausing an application for 10 seconds. In reply to John W. Vinson's post on November 6, 2013. Display input box for user to enter a date. The loop was simple enough and exactly what I needed. So far as I know, Access has always behaved this way, but I can't readily demonstrate that. Below is the code I currently have implemented. of each query in a separate row in a memo field (incase a sql string contains more than 255 characters --memo fields can handle unlimited characters). access vba wait. . The syntax of the CreateProcess function is complex, so in the example code, it is encapsulated into a function called ExecCmd. An Overview to Wait Until a Process Completes in Excel VBA. Access Vba While Loop LoginAsk is here to help you access Access Vba While Loop quickly and handle each specific case you encounter. I'm happy to help but I need to see what you're calling. For this open a new module in VBA and write Subcategory in the name of the used function or any other name as shown below. Does activating the pump in a vacuum chamber produce movement of the air inside? Don't misunderstand; we're not asking you to justify anything. . 2. You could usea But indeed, many thanks for the input and I will give feedback on my findings. As opposed to VBA Sleep, the Application Wait procedure does not freeze Excel during the pause. I wasn't aware that it worked this way in macros, because I almost never use them (being a programmer from way back). If Process.Start can do Compression then we can use Process.WaitForExit. Access tips: www.datagnostics.com/tips.html. I have looked at the syntax of "docmd.openquery" but cannot find a switch which might require the next item of processing to "wait" (for example until that query is closed). When the migration is complete, you will access your Teams at stackoverflowteams.com, and they will no longer appear in the left sidebar on stackoverflow.com. Where this is the case and a programmer has to resort to SendKeys then yes it is neccessary to wait for one process to complete before sending the next set of keys. DoEvents passes control to the operating system. Set db = CurrentDb() To learn more, see our tips on writing great answers. To create an addressable process, use the CreateProcess function to start your shelled application. . This is as close as you get to multi-threading in VBA. Waiting for Filecopy process to finish Waiting for Filecopy process to finish VBAguy22 (IS/IT--Management) (OP) 20 Feb 04 10:51. . a.) With RefreshAll, your code is most likely resuming the next lines before all connections are refreshed. Indeed, if I can't get the queries to wait for each other, then I am a bit stuck. If I try running Notepad in the Shell, it opens Notepad and it does freeze the macro, until I close Notepad. Step 2: Press Alt+F11 - This will open the VBA Editor. ExecCmd takes one parameter, the command line of the application to execute. So I came across Shell & Wait, or CreateProcess or whatever you want to call it and that works beautifully. Step 2 - Exploration. To ensure that code in a form suspends operation until a pop-up form is closed, you must open the pop-up form as a modalwindow. Per usual, we start with Step 1 - Setup. Create a standard module and name it anything you want. You can specify an interval after which the function times out and returns to the caller. Generally, this problem is addressed by specifying "print directly to the printer" in printer's properties. When you use OpenQuery to execute an action query, such as an update, append, or delete query, the query is executed Instead, try refreshing each connection (one by one). You must log in or register to reply here. Step 4: Copy the above code and paste in the code module which have inserted in the above step. Answers. Answers related to "excel vba wait until process complete" vba sleep; excel vba Run a Macro every time sheet is changed; excel vba if sunday or staurday; excel vba pause; vba delay; vba next for loop early; excel vba close without saving; how to exit a for loop vba But so far I haven't found this option. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Indeed, it all seems to work in exactly this way when called from a macro so surely it should be possible to do this in VBA code? 'This is all I need to run it for .1 seconds. Re: Make macro wait for process to complete. . Find centralized, trusted content and collaborate around the technologies you use most. Not the answer you're looking for? Short, simple effective. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. For example, if executing the code at 13:00:00, if you supply the time as "13:15:00", it will hold the Macro running for 15 minutes. Many thanks for the input and, yes, I will be using a number of these ideas and suggestions. Access is the thing that manages the "multi-threading" of many of the DoCmd actions. Macros just means the VBA code where eveer it may be. From what I understand, WaitForSingleObject returns 0, which should mean the Shell is closed (or finished running), but it's not. Essentially, this all happens on lines 11-12, where we assign a reference to Sheet1 and store it in the wks variable easy cheesy. cytop, thanks for the link. Making location easier for developers with new data primitives, Stop requiring only one assertion per unit test: Multiple assertions are fine, Mobile app infrastructure being decommissioned. The standard code sequence would look like: Dim db As DAO.Database "Multi-threading is a feature of Object Oriented Programming (OOP). The CreateProcess function gives your program the process handle of the shelled process via one of its passed parameters. In my early days it sometimes took medays to get the desired response from one of these forums. For a better experience, please enable JavaScript in your browser before proceeding. It is not for me to question why you want Access VBA to wait; I am just trying to provide a simple solution that will work. I'm not sure I understand. It needs to have a record. *Tek-Tips's functionality depends on members receiving e-mail. The VBA Application.Wait is a native VBA function that pauses code execution until a certain time is reached. 7/4/2011. Application Ideas - VBA Application.Wait. If your procedure needs to wait for the shelled process to end, you can use the Windows API to poll the status of the . So far, I've been satisfied with the following as the running time was pretty consistent (about 2sec.) Asking for help, clarification, or responding to other answers. The DoEvents function returns an Integer representing the number of open forms in stand-alone versions of Visual Basic, such as Visual Basic, Professional Edition. Thanks! Copyright 1998-2022 engineering.com, Inc. All rights reserved.Unauthorized reproduction or linking forbidden without expressed written permission. Visit Microsoft Q&A to post new questions. i need to wait for it to complete before i do the next function/sub. Stack Overflow for Teams is moving to its own domain! Best way to get consistent results when baking a purposely underbaked mud cake, Saving for retirement starting at 68 years old, How to distinguish it-cleft and extraposition? and use. Sensitivity to the Esc Key. doCmd.OpenForm FormName:=<Name of form to open>, WindowMode:=acDialog Support and feedback closed, does the processing continue (with the next query being called). Step 3: Once the code window opens up declare a sub-function to start writing the code. Yesss. Such amove would make the whole thing much more transparent and manageable for me. Application.Calculate. Process2. When the process starts, it is changed to 1. Now, specify the "Time" argument to tell VBA that how much time you want to wait. vba sleep 10 seconds. In the end, run the code to put wait for all the activities in Excel. Join your peers on the Internet's largest technical computer professional community.It's easy to join and it's free. I put this up for same reasons as you put up your sample- to educate other users. Application.Wait (Now + TimeValue ("0:00:15")) Loop. #2. But the problem is the method Wait takes a fixed time as the argument and . Say you have a list like qry1, qry2, qry3, qry4, qryN. b.) I am using the DateAdd function to add 15 seconds to TWait. Your macro will continue to run from the next line of code immediately after the Wait statement. It just separates a running process DoEvents is a sort of function that belongs to the Multi-threading family of threads. How To Programmatically Wait For Shell Command To Finish Running? Water leaving the house when water cut off, Earliest sci-fi film or program where an actor plays themself, An inf-sup estimate for holomorphic functions. However,I would say that listing the query names in a table is probably not a bad idea. Process wants Parameter like String. Hey, what about the idea of checking for the cursor to stop being a hourglass. Let's review how it works with our trusty 4-step VBA process: Step 1 - Setup. The first line of code creates a .csv file. But here i cant use the string. When you run the Shell function in a Visual Basic for Applications (VBA) procedure, it starts an executable program asynchronously and returns control to the procedure. You could loop through this table and run each query as follows: Notice I added the key word "DoEvents" at the top of the Do While Loop. Then, once that query is closed (and ONLY then), should to code continue execution. After I read your respond, I run the code (not step run) and. : While FileLen (outputFilename) < 9000 And (Timer - Chrono) < 10 Wend. i want the StartMacrosI to start and complete first before it starts DeleteFilesI. Would it be illegal for me to act as a Civillian Traffic Enforcer? I use the below custom Pause function [set to .1 seconds] to allow my status labels to show the updated message when running or calling multiple processes in one Sub or Function. To use it, the code would look something like this. : Indeed I've observed that all the result data is written in one go and before that, the output size doesn't exceed 9Ko. This would be a complete disaster as I wouldn't be sure that I am duplicating what existed before in the macros (i.e.
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