How to get the same result in VBA and in PHP computing a CCITT CRC checksum

I was working last week on a Microsoft Access application and I needed to get some data from a webserver running Apache/PHP. Exchanging data with the server was easy, the WinHTTP and XML ActiveX library components are really cool and easy to use for that. But then I came unto some unexpected trouble when I… Continue reading How to get the same result in VBA and in PHP computing a CCITT CRC checksum

Share the Clipboard with VBA and the Windows API

Accessing the clipboard in Windows becomes quite tricky in VBA, particularly if you have to stay 32 and 64 bits compatible. Here’s my compilation of portable routines, inspired by MSDN, Internet scraping and good sense. First the Declares section (I know, it pours out of the frame on the right, just select and copy the… Continue reading Share the Clipboard with VBA and the Windows API

Microsoft Access Databases ADO connection strings for 32/64 bits

If you try to open a connection to an Access database via ADO, you’ll have to use a different provider, whether you’re coding for 32 or 64 bits environments. Here’s a utility function I use for that (updated 25.02.2014):

Of course you have to have the correct jet engine files installed on the target… Continue reading Microsoft Access Databases ADO connection strings for 32/64 bits