10/30/2022 0 Comments Delphi xe unzip file![]() #Delphi xe unzip file licenseIt turns out we have a license to ZipForge which I had forgotten about since I had not used it in ages it and that handles the download stream from the C# web server and extracts the files successfully.įor reference, I also tried the Abbrevia component version 5.2 and that also successfully extracted the files from the stream.Īll the suggestions by David and Uwe were appreciated. The Delphi TZipFile component could not handle it. We even tried two different C# libraries to zip the files and both gave the same results on the streamed data. My goal was to just open the downloaded stream and extract the files directly to disk. While that would have worked, it was not optimal as it required me to save the downloaded file to disk first and reopen it for extract and then delete the zip file. Nothing I tried except for the roundabout way of saving the file and re-opening it using David's function worked. TL DR: The solution to my problem was an external component. I'll use David's example if I have to but I'd prefer to get the normal extract working if possible. I am really confused why a convoluted method of extraction would work and the simple extraction method would not work. Use David Heffernan's stream procedureĮxtractToFile(filename, x, 'C:\test\' fileNames) Īnd David's procedure extracts the files to disk as expected! WTF? It lets you easily create ZIP archives, extract files from zip files to hard drive or. In desperation I tried to see what the ExtractToFile() procedureĭavid Heffernan came up with in this question about extracting a zip to a stream would do so I tried using it like this: var x : integer įileNames := copy(zipFile.FileNames, 0, MaxInt) ZipForge is a fast and powerful VCL Zip component, written in Delphi. #Delphi xe unzip file zip fileThe zip file is valid and the 2 zipped XML files can be extracted properly by both Windows 7 native file handling and 7-Zip. I even tried using the class method to extract the files from the zip file on disk: (filename, 'C:\Test\') Unzip the release files into a directory (e.g., d:abbrevia). That got me zero byte files so I saved the zip file to disk and tried to open the file from disk and extract. Async Professional is a comprehensive communications toolkit for Embarcadero Delphi, C Builder, and ActiveX environments. I tried to extract the data using the overloaded open method of TZipFile to open the stream. That's actually what I want to do since the zip file is downloaded from a web server into a TStream. I even tried using a TStream as the source instead of a file on disk. Response.ContentType = "application/zip" ZipFile.AddFile(string.Format("", StaticVariables.WebServerFileStorage, t.Item2), "").FileName = t.Item1 ".xml" #Delphi xe unzip file codeThe file is being compressed by C# code like this: var zipFile = new ZipFile() Using Delphi XE2 and the native TZipFile I attempt to extract the contents of a downloaded zip file (which contains 2 zipped XML files) and it always extracts zero byte files. ![]()
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