Please Note: This article is written for users of the following Microsoft Word versions: 97, 2000, 2002, and 2003. If you are using a later version (Word 2007 or later), this tip may not work for you. For a version of this tip written specifically for later versions of Word, click here: Detecting an Open Dialog Box.
by Allen Wyatt
(last updated June 26, 2018)
Thomas has a macro that performs various functions at timed intervals. Some of those functions should not be performed if a dialog box is open on the screen, because trying to perform them will cause an error in the functions. He wonders if there is some way, within the macro, to detect if a dialog box—any dialog box—is currently open. Thomas would rather detect the open dialog box rather than deal with a generated error.
Perhaps the only way to attempt to do this is to use FindWindow, which is actually part of the Windows API. Its purpose is to retrieve a handle to a particular open window. (A dialog box is nothing but an open window, and each dialog box has a name.) This approach won't tell you if any dialog box is open, but it will tell you if a specific dialog box is open.
Here is a quick example to show how the FindWindow function can be used:
Declare Function FindWindow Lib "user32" Alias "FindWindowA" _ (ByVal wClassName As Any, ByVal wWindowName As String) As Long Sub testDialogOpen() Dim wHandle As Long Dim wName As String wName = "Find and Replace" wHandle = FindWindow(0&, wName) If wHandle = 0 Then MsgBox "Dialog window is not open" Else MsgBox "Dialog window is open" End If End Sub
Note that the FindWindow function needs to be declared outside of your VBA procedure. Then, within the procedure, you need to specify the name of the dialog box you want to find out about. This is the name that appears in the title bar for the dialog box, and the FindWindow function is case insensitive. The return value for FindWindow will be a handle for the dialog box, if it is open. If it is not open, then the function returns a 0.
Remember, too, that dialog boxes can be of two types: modal and non-modal. If a particular dialog box is modal, then it must be dismissed before any other actions can be taken on the system. You'll want to do extensive testing with the dialog boxes at point, as you may get different performance from your macro depending on whether an open dialog box is modal or not.
WordTips is your source for cost-effective Microsoft Word training. (Microsoft Word is the most popular word processing software in the world.) This tip (12355) applies to Microsoft Word 97, 2000, 2002, and 2003. You can find a version of this tip for the ribbon interface of Word (Word 2007 and later) here: Detecting an Open Dialog Box.
Learning Made Easy! Quickly teach yourself how to format, publish, and share your content using Word 2013. With Step by Step, you set the pace, building and practicing the skills you need, just when you need them! Check out Microsoft Word 2013 Step by Step today!
Word allows you to create a macro that is run automatically whenever the program is started. If you want to bypass the ...Discover More
Need to find out in a macro how long a particular text string is? You can figure it out by using the Len function, ...Discover More
Want a list of all the commands available in Word? You can get one easily by following these steps.Discover More
FREE SERVICE: Get tips like this every week in WordTips, a free productivity newsletter. Enter your address and click "Subscribe."
Got a version of Word that uses the menu interface (Word 97, Word 2000, Word 2002, or Word 2003)? This site is for you! If you use a later version of Word, visit our WordTips site focusing on the ribbon interface.