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David Heffernan

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Everything posted by David Heffernan

  1. David Heffernan

    git and Delphi tooling?

    Fork is highly regarded. I know that @Stefan Glienke has moved to using Fork having previously used SourceTree.
  2. These doc links explain it Simple Types (Delphi) - RAD Studio (embarcadero.com) Scoped Enums (Delphi) - RAD Studio (embarcadero.com)
  3. David Heffernan

    Year Countsdown

    https://stackoverflow.com/questions/65186802/countdown-timer-in-delphi Please don't cross post, or if you do, refer to the preferred version.
  4. David Heffernan

    Prefix unit local variable names

    Except the reality is that you do take care over the latter case that you use, even though the compiler ignores it. It's somewhat ironic that PascalCase is a thing if letter case doesn't matter in Pascal. When you choose names, you take care over the letter case that you use, and then you try to stick to that letter case when you use that name. Which to me is the clincher in why languages should be sensitive to letter case.
  5. David Heffernan

    ways to organize related code in a form?

    I'm sure @David Schwartz knows what rubber ducking is. If he didn't he'd just have typed it in to a search engine to find out. So I guess he didn't understand how rubber ducking applied here.
  6. David Heffernan

    Running complicated python code from existing TThread hangs

    Doesn't matter how many threads you use. It's an issue with the Python GIL that requires special treatment with threads.
  7. David Heffernan

    Running complicated python code from existing TThread hangs

    thread safe? · Issue #47 · pyscripter/python4delphi · GitHub
  8. David Heffernan

    Multiple Instances of Python Engine

    Do you need multiple modules? You talked about multiple modules to hold different data. But why does the data have to live in a module?
  9. David Heffernan

    How create a website whit Delhpi

    I quoted it in my previous comment. You might want to read it for yourself.
  10. You don't need to know the size of anything to persist properties. The way to do that is to use the streaming framework. There are many example codes on the web. You are probably making a mistake in believing that you need to copy a block of memory. That's not how to do persistence of complex structures.
  11. This is very complex. The answer you link to is the size when serialized. But that bears no real relation to the memory used by the class at runtime. Also there are the system resources that are used. The real question though is what you are planning to use this value for. Knowing that would allow us to understand better how you might solve this.
  12. David Heffernan

    How create a website whit Delhpi

    This is what was stated, @FPiette. What makes you think that there is a large amount of existing Delphi code.
  13. David Heffernan

    How create a website whit Delhpi

    That is beside the point of this topic. Remember what the OP has actually asked.
  14. David Heffernan

    How create a website whit Delhpi

    What the OP is asking for doesn't seem to have any requirement for server side code. Remember that we aren't talking about your requirements, we're talking about those of the OP.
  15. David Heffernan

    How create a website whit Delhpi

    And you don't think that maybe, just maybe, Delphi isn't the best tool for this?
  16. David Heffernan

    How create a website whit Delhpi

    You don't do that with Delphi is the simple answer.
  17. David Heffernan

    Prefix unit local variable names

    a is for argument
  18. David Heffernan

    How create a website whit Delhpi

    We still have basically no idea what you are asking.
  19. Generally it's wise to try not to do this.
  20. David Heffernan

    How create a website whit Delhpi

    There are countless ways in which Delphi code may be involved in web development. If you want anybody to spend their time helping you I suggest that you spend more of your time thinking about your problem, and specifying in more detail what specifically you need help with.
  21. This has been answered above. It's the use of an intermediate string variable that holds the entire text which is then saved. And strings have 32 bit length. I'm not sure what @emailx45 is getting at but the problem you face is not due to a shortage of memory or address space. It's just that the string length is stored in a 32 variable. And a string is used by SaveToFile to save the text. FWIW, it seems wasteful to me to make an in memory copy of GBs of text just to save it. I'd be looking for a writer based approach. Just not using the raw RTL classes because of their dire performance.
  22. David Heffernan

    Multiple Instances of Python Engine

    What exactly is your rationale for wanting to use multiple engines? Why is it not possible to do this with a single engine?
  23. David Heffernan

    Generic record helper for enumeration types

    You can't have generic helpers.
  24. You don't need the if. You know that sList is not nil. Also, Free already includes a nil check. Also, there is the <> operator for not equals.
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