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Steve Maughan

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Everything posted by Steve Maughan

  1. Steve Maughan

    "Debug process not initialized."

    I disabled MadExcept IDE exception catching and that didn't fix the problem. It was a good idea. Thanks — Steve
  2. Steve Maughan

    Any Known Issues with ZCompressStream?

    My application saves data as a compressed JSON file. I use the standard System.ZLib routines ZCompressStream and ZDecompressStream to handle the compression. I thought these were just a wrapper around standard ZLib routines. Earlier today someone sent me an application file that couldn't be opened. It turns out it couldn't be decompressed. It could have been corrupted after being saved. The decompression routine went into some sort of endless loop when it attempts to open the file. My question is: does anyone know of any problems compressing data using ZCompressStream? I'm using Delphi DX 10.4.1. Are there any other third party ZLib compatible compression and decompression routines? Steve
  3. Steve Maughan

    Any Known Issues with ZCompressStream?

    I won't change my library but I'd still like to be aware of any newer, and maybe better, libraries. Having had a quick look it seems to be third party. I had thought it was shipped with Delphi since it was System.Zip2. I try to minimize the use of third party components so definitely won't switch, or even look any further.
  4. Steve Maughan

    Any Known Issues with ZCompressStream?

    That was a question I had — why wasn't there a checksum error when it tried to decompress?
  5. Steve Maughan

    Any Known Issues with ZCompressStream?

    Thanks David — all good advice. I was really looking to see if there were a list of known bugs with the ZCompressStream. It seems file corruption post saving is probably the most likely explanation.
  6. Steve Maughan

    Any Known Issues with ZCompressStream?

    Thanks — I wasn't aware of System.ZIP2. I'll take a look - Steve
  7. Are we due for an updated Delphi roadmap?
  8. Steve Maughan

    When will we have an updated Delphi roadmap?

    Thanks but this seems to be C++ only.
  9. Steve Maughan

    When will we have an updated Delphi roadmap?

    Thanks! I thought we were due for an update soon
  10. Steve Maughan

    APPX & ProgramData Folder...

    I'm trying to prepare my application for the Windows Store. I'm new to APPX applications so have some basic questions — I hope someone is able and willing to help. I created the APPX file using Advanced Installer. This seemed easy. The application installs a lot of data into the common app data folder (usually in "c:\Program Data\Cozmix\AlignMix"). When I sideload the application there are no errors. However, there is also no data in "c:\Program Data\Cozmix\AlignMix". I assume it has its own virtualized version of this folder — is this correct? I then store an activation key in the same folder— which I can't see. My question is as follows: is the common app data folder the right location to store APPX application data? If not, where should it be stored? Thanks, Steve
  11. Steve Maughan

    APPX & ProgramData Folder...

    I've now updated the API to get the common data path to: result := IncludeTrailingBackslash(TPath.GetPublicPath) I thought that would fix it but unfortunately not — the application is still not seeing the virtualized folder.
  12. Steve Maughan

    APPX & ProgramData Folder...

    Thanks! So how do I access the files? I would have assumed Windows would provide the virtual path when I call: SHGetFolderPath(0, CSIDL_COMMON_APPDATA, 0, SHGFP_TYPE_CURRENT, @path[0]) Is this not the case? Steve
  13. Hi, Google Chrome has started to block the downloads of my application (https://www.alignmix.com). We offer a trial download so anyone can try the software and decide if it's for them. We've been doing this since 2015 with no problems. The application is business-to-business application that helps companies design their sales forces territories. It doesn't contain any malware at all. Everything is done with the user's permission. It is quite a large application at 157 Mb. When the user clicks on the download link they will see the download progress in the bottom left hand corner. Once downloaded Google Chrome informs them "AlignMix-2019-Setup.exe may be dangerous, so Chrome has blocked it" (see the screenshot). There is only one option, and that's to "Discard" — it's not a warning, it's the only option for the user. The only way around this is to delve deep into Google Chrome's setting and disable the "protection" feature and then re-download. I can't see many users taking this route — most, if not all, will simply move on and try to find another solution. The "Discard" button take you to this information page: https://support.google.com/chrome/answer/6261569?visit_id=637231503147981989-2256574895&p=ib_download_blocked&hl=en&rd=1 Which then takes you to this page, " learn how to resolve malware or unwanted software issues": https://support.google.com/webmasters/answer/3258249 When I run a "Security Issues Report" there are no security issues on the site — see screenshot. AlignMix conforms to the software guidelines. This is serious. Since 60% of the visitors to our website use Google Chrome this will have a massive impact on our business. It could jeopardize the viability of my business. Is this the start of Google's war against desktop software? Does anyone have an advise? Has anyone come across this before? All help appreciated! Steve
  14. Fascinating! I didn't think code signing certificate providers had a pecking order! Has anyone else had this experience?
  15. Hi Fred, I gave that a try and it didn't work. I can't imagine Google penalize you for storing stuff on their storage solution. Thanks, Steve
  16. Hi Lars, The Softpedia comment is well taken — I'll remove it now. Can I ask which version of Google Chrome you're using? Thank!
  17. The only review I could see was the for Android APK applications. I haven't been able to find a way of submitting this issue — any clues appreciated.
  18. I'm using the Gnostice tools to create a PDF of a map. The user can select options (e.g. paper size) and then sees a preview before clicking OK and the PDF is exported. The time to create the preview can be considerable; maybe 5 seconds for a complex map. As a result I'd like to create the preview in a separate thread. I can do this using a TTask. What I'm not clear about is what to do if the user changes the options while the preview image is being rendered. The "old" image is now obsolete. I need to destroy the TTask and then create a new one. Does anyone have any code examples of this workflow? Thanks, Steve
  19. I posted the small project to GitHub in case it's of interest to others: https://github.com/stevemaughan/Background-Render Steve
  20. Done! I've attached my solution for those interested. Here's a brief explanation: Whenever the color changes I create a render thread derived from TThread The render thread has an ID (GUID string) and a color (or drawing parameters) I record the last created ID When the thread has completed rendering it posts a message The main thread processes the message, checking to see if the ID is the same as the last ID. If it is then it's draw All render threads are then destroyed Works like a charm! What was tripping me up was wanting to rely on a threading library (which I'm not that familiar with). In this case it was much simpler to create my own thread. Thanks everyone — Steve Background-Render-FINISHED.zip
  21. This seems like the most obvious way to tackle the issue. I'll report back on progress. Thanks, Steve
  22. @Primož Gabrijelčič you're the resident threading expert. Any idea how you'd achieve this using OmniThread library? Thanks, Steve
  23. Exactly! I would have thought this is a common problem
  24. Thanks for all the input. It's clearly tough to give advice without a solid example. I've created a simple project that illustrates the problem — see attached. Here's a short video that explains what's going on: https://www.loom.com/share/500d1f2b0f1f4fe4857eb9a18e07b958 Any suggestions for how to stop the GUI freezing when multiple click to the colorlist would be appreciated. I would have thought this is a common problem. Thanks, Steve Background-Render.zip
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