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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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TTemporaryFileStream – via DELPHI AREA » How to have a temporary stream, with no size limit

Posted by jpluimers on 2018/04/17

I needed a TTemporaryFileStream and found it at [WayBack] DELPHI AREA » How to have a temporary stream, with no size limit.

It taught me that CreateFileA and CreateFileW (the ANSI and Unicode versions of [WayBack] CreateFile function (Windows)) accept a FILE_FLAG_DELETE_ON_CLOSE parameter, so as soon as you close the handle, Windows will dispose of the file.

Note however that this will apply to the file handle so if you want to open it multiple times, you need [WayBack] DuplicateHandle function (Windows) as per [Archive.is] The FILE_FLAG_DELETE_ON_CLOSE flag applies to the handle, also known as the file object, which is not the same as the file – The Old New Thing

–jeroen

This entry was posted on 2018/04/17 at 12:00 and is filed under Delphi, Development, Software Development, The Old New Thing, Windows Development. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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