Extracted from LAVA - crush keeps old date/time of the png file

I don't know if this is a bug, or to behave like that.

Scenario: create an extract using the tool of LAVA. I just use the same name (and path) of an existing png file that was created by the same LAVA tool a few days before also (so I replaced the original file). I opened the case, and to quickly find the newly created excerpt, I ordered the files as a descendant by time and date. To my surprise I couldn't find the code snippet in the upper part. The reason was that the new file kept the date/time from the original one.

This is a really minor thing, but it made me curious. Under windows, when I rename a file, it retains the original timestamp. However when I crush him, it updates.

LabVIEW 2015 (32-bit),

Code Capture Tool v3.2.1 - 46 lava

As I said, look at the code of the COMMON customs tariff. The only thing I can think of that would make it interesting is the code snippet, which is a flow within the PNG file, something that the VI of shipment is not compatible. I don't know more how it's done exactly - it might be created under the PNG in memory and then writes to the file directly or can be injected into the file after shipping VI saves it.

Either way, I just did a test fast in Notepad and if I do record under and tell him to replace an existing file, the date of the creation of this file does not seem to change so this seems to be normal behavior for Windows. I don't know if the Windows API file deletes the file and creates a new or simply modifies the existing file when you perform this operation.

Tags: NI Software

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