Rollo62

You could use a setter for sQuery, that sets up the SQL before showing the form. That would not nee FormShow.

Perhaps they already have better AI than you and me 🤔

Thanks, this is a great library and introduction. Can your libFPC also be configured to generate and run an Pascal code in memory at specific periodic schedules, lets say like every 1st of April or so?

Yes, good choice too, but I would prefer a slightly more modern PC, like the Sinclair ZX81 Basic language: https://github.com/andrivet/zx81-typescript-emulator/blob/master/Documents/Sinclair ZX81 BASIC Programming.pdf This is at least an evolved high level language, whereas RPG is probably not. Also the vast amount of memory in this product makes it mode suitable for modern 3D and AI tasks, IMHO.

Yes, of course. My consideration was that Macos & Co might have their similar credential API worth to abstract then here under one umbrella: Nevermind, thanks for clarification.

Thanks, nice piece of code. 👍 I have two questions: 1. You keep the secret as String in the class, wouldn't it make sense to hash it, so that at least not a simple memory dump might offer a readable password? 2. You're implemented Windows-specific, are you going to implements other platforms too ( it looks a bit like that ) ?

I'm not on D12.3 yet, but 12.1 + Patches, and I've made some tests with TThreadedQueue in the past, finally moving to Spring4D. Another useful technique for your decision could be, try to grep where this class is used in other projects or libraries: - I only find one occurence in Datasnap.DSServer. This seems not to be a well tested class yet, IMHO.

Hi there, I'm trying a bit with with custom records and have here some minimal example. Its about the API to work with such records. I wonder what will be the right way, to use it in the following scenario, without warnings: unit UMyCustomRecordDemo; interface type TMyCustomRecord = record public type TMyEnum = ( meFalse, meTrue ); private FValue: TMyEnum; public // Standard-Operators for Custom Managed Records class operator Initialize(out Dest: TMyCustomRecord); class operator Finalize(var Dest: TMyCustomRecord); class operator Assign(var Dest: TMyCustomRecord; const [ref] Src: TMyCustomRecord); // Factory-Method, which shall prepare a new record, that can be used with inline variables and intrinsic type evaluation class function Make_Record: TMyCustomRecord; static; end; implementation class operator TMyCustomRecord.Initialize(out Dest: TMyCustomRecord); begin Dest.FValue := meFalse; end; class operator TMyCustomRecord.Finalize(var Dest: TMyCustomRecord); begin // Finalize if necessary end; class operator TMyCustomRecord.Assign( var Dest : TMyCustomRecord; const [ref] Src : TMyCustomRecord ); begin // Simple copy of internal values Dest.FValue := Src.FValue; end; class function TMyCustomRecord.Make_Record : TMyCustomRecord; begin // This shall prepare a new record Result.FValue := meFalse; end; end. And it would be used like that procedure TestMyCustomRecord; var LRec1: TMyCustomRecord; begin // This assignment throws the warning: W1048 Unsafe typecast of '%s' to '%s' (Delphi) //Yes, it may be caused by temporary object and assignment, which is not most performant. LRec1 := TMyCustomRecord.Make_Record; //I would like to use this, as elegant way to make and prepare a new variable var LRec2 := TMyCustomRecord.Make_Record; end; My question is, are CustomManagedRecords not intended to be used in Function results, because there is no nice easy way to get rid of these warnings? How about functions returning Records in general, this is not the most efficient way, I know, the pro's are its readability. Would there be an elegant way out of this problem (maybe by records using classes or smartpointers internally, but would such overhead be worth it for simple records? And yes, I know that a "getter" would solve it, but not as elegant as above API: TMyCustomRecord.Make_Record( LRec );

I would agree, if we talk about 100% compiler managed code. BTW: This warning really only appears with custom CMR, if I replace this by a "normal" Delphi Record, then there is no warning, which I would expect too. Now I can use this warning to find places where custom CMR might cause issues, which would become handy to debug sporadic, unclear issues maybe, where you got no idea where to look at. So I like the warnings and don't think all of them were bogus, at least for the CRM records. Imagine you have an only half-implemented CMR record assignment operator, then you might be pointed to this issue a bit. This could be a perfectly fine, accepted behaviour by design, but good to see these warnings as reminders. Yes, I could make a hint about such special-design decisions in the record itself, but then I wouldn't backtrack the places where it is used so easily. Nevermind, if there is nothing wrong with the code, I will keep it like that. I was looking for a perhaps better implementation, like SmartPointer, Getter, or the like ... returning plain Records as result is maybe never the best idea, only for readability. But the overhead of those other solutions over a simple Record doesn't make it better, IMHO ( and yes, I'm not looking for highest-performance design here, just normal code ).

Thanks, but I think this can still have a true core. From my understanding, this warning tells us, that there is a temporary object, which will be automatically assigned by the custom assignment operator, where the compiler cannot really check the assignment, because its "custom". So in my opinion this warning maybe has some good reasons behind and could be helpful. It would be great if I could take control with the [Result: unsafe] attribute, by telling the compiler: "Nevermind, I know how to handle this case, just keep silent about it." Since I only look into this from time to time, I keep it like that, but maybe for some hard debug sessions this might be useful to switch it on and find some good hints to look into. I'm still in a 50:50 position here.

Perhaps you don't have activated them in the project I try from time to time to cleanup all warnings, but with these "unsafe" checked I've got a huge list with myriads of warnings. Thats why I try to find a better design, how to remove them. Since I usually see warnings same as errors, I try to remove them all, but with these settings nearly every unit ( System units too ) produce massive warnings. All in all they were maybe not so critical, or came from a different ARC-era, but still they point towards some possible flaws in code. I think its always worth to try to find better solutions.

What I have found is that aside the usual [unsafe] there is a specific [Result: unsafe] attribute, which can be used before member functions, where I have assumed that this might suppress the warnings. https://docwiki.embarcadero.com/Libraries/Seattle/en/System.UnsafeAttributehttps://docwiki.embarcadero.com/Libraries/Seattle/en/System.UnsafeAttribute This should be applicable to functions as well, but it doesn't suppress these unsafe typecase warnings But it also says: There is also the unsafe method modifier, or maybe unsafe keyword how Marco called it, which can be added behind a function. This does more than just compiler magic, but it seems to modify reference counting. So this is not what I'm looking for, but mybe with Recors it does this job? Is the [Result: unsafe] attribute maybe a leftover from the mobile ARC stuff and nowadays has no meaning? I'm unsure what this really should do, except suppress warnings. There was an old whiteparer "The Delphi Language for Mobile Development" from 2013, which seems not available any more. What I'm looking for is a selective way to suppress the warnings a Record level, to tell the compiler that I take the responsibility.

If you start by 0, I would also say no, this should not be underestimated, If your question goes in the direction of an existing ERP bringing to web technology, I would say yes. Otherwise C#, PHP/Laravel or even Python will close that gap nowadays. Even large ERP systems were developed with web-technologies much faster and much more capable than desktop, before we even can start an *.EXE file This is just my opinion, perhaps there were different opinions or experiences too.

Thanks for these enlightments. If Spring4D already optimizes to 14ms, how did you get the only 2nd best results at 22ms? Is there any configuration setting needed, to switch on or off the Hash-Algorithm, how to use Spring4D in the right way with Integers?

I'm unsure what advantages to expect from this Are'nt these just several independent server layers between the client and the LLMs, to unify the LLM communications? Currently they talk only about Claude, it seems very Claude centric to me. Do these MCP servers have any REST API or whatsoever, maybe I have overseen this? For the use of agents, wouldn't it make more or same sense to have these features built in the client SDK ( Delphi Code ) in the first place? Then your app would have local, full control over all LLM's and DB's. Yes, a server solution might have some advantages too, but they are not good pointing them out very precisely. I would start with unifying access to different LLMs by implementing a general Delphi Interface for several LLM implementations, to have a compatible interface between several LLM ( if that will be really possible ). Perhaps I completely misunderstood the deeper idea behind this additional layer of complexity, then please let me know.

RegEx?

That would mean, that this tool "compiles" the code and is able to calculate the contents of the variable "foo". This can be from millions of different complex calculations and sources and even user input. I doubt that such tool will exists, but perhaps a Pascal parser together with a Pascal scripter may be able to simulate the codeflow and catch this. Maybe its easier, if you replace/mock the Format() and try to catch or log this error before it is raised.

As far as I know supports MacOS only advisory locks. https://developer.apple.com/forums/thread/709905

Have you also added the featured file "Sqlite driver" in the deployment? https://youtu.be/--HfSCnp24o?t=163

Is that always guaranteed? I would think that the compiler may decide to copy by value for small records.

Hi there, via WholeTomato https://www.wholetomato.com/blog/2024/11/14/how-to-query-file-attributes-50x-faster-on-windows/?utm_source=Eloqua&utm_medium=email&utm_content=Article-250314-WT-50xfaster

Would you please explain a little, how the 64Bit IDE is integrated into the existing system? I understood that both have two separate registry entries, which would make sense, but what about the installation files & binaries? a.) are all these files land in completely separate, external installation folders, outside the normal "Embarcadero/Studio/23.0/bin" folder with all different libraries and *.dll, or b.) is this just another internal folder or *.exe aside the normal "Embarcadero/Studio/23.0/" or "Embarcadero/Studio/23.0/bin" folder a.) would mean that more or less double the size or installation, all files 32-/64-Bit, even if they maybe same. b.) would mean that most libraries, dlls, etc. are maybe shared and the new 64BitIDE is more or less a new *.exe, which is using that. Would be great to know how much the degree of re-use for the new 64BitIDE files there is, Is this doubling the size, or only a fraction? I cannot find any information from Embarcadero to this.

Thats what I think too, but have you tested it already for cross-platform, without issues? Better I wait a day or two.

Oh my, I'm still on Delphi 12.11 and wanted to upgrade to 12.2. My 12.11 was (is) very stable, so I hesitated with the move. Now I have to jump to 12.3 immediately and skip 12.2, will Delphi 12.3 be as stable as 12.2, I doubt it. Shall I update to 12.2 or better directly to 12.3 then? I hope to get some early responses here on stability for Android, iOS, before I decide this.

Hi there, I'm wondering if there have been any changes to the Now() function recently, related to the timer resolution. The Now() returnd TDateTime with Millisecond resolution, while officially they state the resolution is only 1 Sec. https://docwiki.embarcadero.com/Libraries/Athens/en/System.SysUtils.Now Note: Although TDateTime values can represent milliseconds, Now is accurate only to the nearest second. This topic is quite old, so already here discussed on SO https://stackoverflow.com/questions/14573617/how-accurate-is-delphis-now-timestamp With GetTimerTick() I can reach 7-16ms timer resolution, basically. !! And before somebody recommends high performance: I'm perfectly fine with the 15ms resolution and I want to use it. With Now() I can see similar results on all platforms, according to my tests, which is much better than the 1 Sec. stated in the docs, pretty much like the 7-16ms resolution. So what does the 1 Sec. really mean then, is this the worst-case scenario that might happen, while its perfectly 15ms all day long? Perhaps there have been changed something recently, in Delphi or Windows or other Platforms? Windows: System.SysUtils.Now(): is based on GetLocalTime(SystemTime); https://learn.microsoft.com/de-de/windows/win32/api/sysinfoapi/nf-sysinfoapi-getlocaltime https://learn.microsoft.com/de-de/windows/win32/api/minwinbase/ns-minwinbase-systemtime - I cannot find any restrictions like 1 Sec. there, not even a 15ms note. TThread.GetTickCount64: is based in GetTickCount64; https://learn.microsoft.com/en-us/windows/win32/api/sysinfoapi/nf-sysinfoapi-gettickcount64 - Which also had no restrictions, aside the known 15ms resolution. Macos/iOS: mach_absolute_time Android/Linux: clock_gettime(CLOCK_MONOTONIC, @res); Other Platforms were way beyond these accuracy - All should reach 1ms without problem. From the behaviour I can see in my tests, I would assume that Now() reaches the same 15ms resolution meanwhile on my current Win11 PC. Is this a safe assumpttion, or are there any other known restriction, which officially state the 1 Sec. resolution? This is why I think the following - Now() and GetTickCount64 both reach about 15ms resolution - Perhaps Now() could show resolution 1 Sec. in rare cases, e.g. under heavy load. - If that is true, I would also expect that also GetTickCount64() might break down to 1 Sec. resolution, under heavy load. Maybe somebody can clarify the situation, under current Windows versions, are there any official statements, aside from Embarcadero's docs? If there were such insights for the other platforms, I'm happy to see them too, but only Windows seems to be worst here.