Starting a Batch File Example

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LA Solutions ShellBatch.doc Starting a Batch File from MicroStation There have been a couple of questions in the MicroStation newsgroups along the lines of “How do I start an operating system batch file without leaving MicroStation?” One answer to the question is to use Visual Basic for Applications (VBA), which is part and parcel of MicroStation V8. VBA provides extensive functionality, which you can extend by referencing built-in Visual Basic (VB) methods, and even by calling the Win32 native application programming interface (API) directly. VB provides a Shell() method, which means ‘attempt to start whatever executable program I give you’. A batch file (having a .bat extension) is not an executable file. The way to ‘execute’a batch file is to give its path to the Windows built-in command executable cmd.exe. The way to persuade the operating system to do something with a batch file is to put these ideas together like this… Shell(“cmd.exe /k batchfile.bat”) Unfortunately, things aren’t always as simple as we would like, because Shell() can’t itself divine the location of the executable file. The VBA project ShellBatch.mvba takes care of these details, and all you have to know is how to start it. 1. Copy ShellBatch.mvba to one of the folders in your computer’s VBA search path (MS_VBASEARCHDIRECTORIES). C:\Program Files\Bentley\Workspace\Standards\VBA is a good choice 2. Open MicroStation’s key-in window from the Utilities menu 3. Start your batch file with the following key-in: you must know the full path to the file: vba run [ShellBatch].Module1.Main <batch file path> For example: vba run [ShellBatch]Module1.Main D:\temp\test.bat Copyright © LA Solutions 2003…2005 visit http://www.la-solutions.co.uk.

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