EnumWindows() is another Windows API function that allows you to enumerate all top - level windows on the screen. This code will try to find an instance of Excel and, if it succeeds, it will display a message box saying "Excel is already running!" You can then modify this code to take whatever action you want ( e. To use it, insert the following code into the Visual Basic Editor :ĭim hWnd As Long hWnd = FindWindow("XLMAIN", 0&) If hWnd 0 Then MsgBox "Excel is already running!" 'Do something here. For example, you can use it to find an instance of Excel that is already open. You can then modify this code to take whatever action you want (e.g., close all other instances of Excel).įindWindow() is a Windows API function that allows you to find a window by its name or class name. This code will try to get a reference to an instance of Excel and, if it succeeds, it will display a message box saying "Excel is already running!". Set objExcel = GetObject(,"Excel.Application") To use it, insert the following code into the Visual Basic Editor: Dim objExcel As Object For example, you can use it to get a reference to an instance of Excel that is already open.
GetObject( ) is a function in VBA that allows you to get a reference to an object that is already running in another program. You can then modify this code to take whatever action you want (e.g. This code will check to see if there is an instance of Excel running and, if there is, it will display a message box saying "Excel is already running!".
To use it, open the Visual Basic Editor (press Alt+ F11) and insert the following code: Dim PID As Long This function will return the PID (process ID) of any process that is running on your computer. If there are, then you know that there are other instances of Excel open.Īnother way to check if there are any other instances of Excel running is to use the VBA Shell function. Look through the list and see if there are any other instances of "EXCEL.EXE" running. You should see a list of all the processes that are running on your computer. The first way to check if there are any other instances of Excel running is to open the Task Manager. For example, if you have a macro that opens up a new workbook, you may want to find out if there are any other instances of Excel running so that you can close them before running the macro. When you are working with macros in Excel, you may sometimes need to find other instances of Excel.
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