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Everything posted by David Champion
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Safe Array Definition inside Type LIbrary Editor
David Champion replied to Robert Gilland's topic in RTL and Delphi Object Pascal
Not directly answering your question.. More Automation In Delphi, Collections - Brian Long -
Yes, you have it, "Side hussles".
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Is there a VCL library available to convert human voice audio into text? It has to work without access to the internet, the English language preferably.
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@Rollo62 It was more the other way round; limited Speech Recognition. Logging to text at various intervals what people are saying, so that positions in Audio log can be sparsely described. Also, the application cannot connect to the internet.
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Thanks for the recommendation. The feature that I was suggesting as part of an on going project was not thought to be worthwhile. So, no, it was canned.
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Create a class that implements a DispInterface
David Champion replied to michastro's topic in Algorithms, Data Structures and Class Design
It looks like you are trying to create an Automation Object with dual ole automation interfaces. Delphi has a wizard that can generate the initial project. The project will include a .ridl file from which you visually design a Type Library. The Type Library designer can generate an implementation stub with all the user defined interfaces. These interfaces are derived from IDispatch, which are your so called DispInterfaces. -
interface Questions about Interface
David Champion replied to xStingEucliffexxx's topic in General Help
if you are trying to implement the Abstract Factory Pattern then you will need to develop factory classes. A more common case is where you will simply sub-class from TInterfacedObject and implement 1 or more interfaces. -
Heads up: Huge price increase for RemObjects DataAbstract updates
David Champion replied to John R.'s topic in Delphi Third-Party
Yes, I noticed the price jump with the RemObjects Remoting SDK subscription. Also, I'm still not clear myself, after chatting with Mark Hoffman, what the subscription only license means. -
FYI - Several Embarcadero services are currently unavailable
David Champion replied to Keesver's topic in General Help
Sometimes unexpected and inaccurate -
An alternate package manager needs to be controlled and run by an organisation outside of Embarcadero which would give the community a little bit more leverage.
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FYI - Several Embarcadero services are currently unavailable
David Champion replied to Keesver's topic in General Help
Let's hope EMB have all the backups required. And the backups are up-to date. And the backup process has proven to be successful. -
We use DUnitX and it discovers all our silly mistakes before release
David Champion replied to Lars Fosdal's topic in DUnitX
This is a very good point, that the component-driven architecture is more than adequate to product loosely couple code. This has troubled me for many years. Most of the time I head off in the direction of developing/refactoring around interfaces and end up with an interface oriented-design. So many small interfaces, so loosely coupled, that dependency injection using Spring4D is an obvious choice. It works for me but the end result is far removed from the tooling support given by the IDE for components. Sometimes the interface design is clumsy and not as dedicated, short and succinct as it should be, closer to a class declaration. I often end up with an unnecessary abstraction where a more concrete implementation as a component would do just fine. Perhaps if the VCL had a different way of producing components that avoided the deep class hierarchies and used more composition there would not be this apparent tension. -
We use DUnitX and it discovers all our silly mistakes before release
David Champion replied to Lars Fosdal's topic in DUnitX
Refactor the code to be loosely coupled; normally a huge amount of effort on a typical RAD created application. -
How to attach a DigiCert Token certificate to exeutable
David Champion replied to Bart Kindt's topic in Delphi IDE and APIs
Does anyone know if it is possible to convert the USB token to an ISO and then mount it on a build server ? -
If you are a beginner, as you say, you'd best select the simplest of choices available and extend from there. I would suggest registering for a AWS account 12 months free tier and using Aurora PostgreSQL. Just a 2 tier solution, Delphi and a cloud based database. No need to spin up a server instance. If the version of Delphi doesn't support remote databases then look into a trial version of DevArts's UniDac components.
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Delphi 11.3 in Windows 11 connected Mac (MacOS Ventura 13.3.1) over Wifi running PAServer 22 Connection fails?
David Champion replied to soft4u's topic in Cross-platform
With a little help from Google translate I can make your question more accessible:- Tôi có Delphi 11.3 trong máy Mac được kết nối với Windows 11 (MacOS Ventura 13.3.1) qua Wifi chạy PAServer 22 (phiên bản : 13.3.12.7 ) Nhấn nút "Kiểm tra kết nối" trong "Trình quản lý cấu hình kết nối" luôn cho tôi "Lỗi từ xa: Unknow LifeCycle : Sessio". Tôi đã tìm kiếm các diễn đàn và tất cả các mục của trang giải pháp lỗi bật lên hiển thị sau khi thử không thành công, nhưng tôi không thể tìm ra giải pháp... I have Delphi 11.3 in my Mac connected to Windows 11 (MacOS Ventura 13.3.1) over Wifi running PAServer 22 (version: 13.3.12. Pressing the "Test Connection" button in "Connection Configuration Manager" always gives me "Remote Error: Unknow LifeCycle : Sessio". I have searched the forums and all the items of the solution page pop up error showing up after the failed attempt, but I can't find a solution. Tôi đã hy vọng ai đó ở đây có thể có đề xuất hoặc chỉ cho tôi đi đúng hướng để tìm kiếm giải pháp. Cảm ơn. I was hoping someone here could have suggestions or point me in the right direction to look for a solution. Thank. -
About Delphi 11.3 CE Platform Selection
David Champion replied to ChenShou's topic in Delphi IDE and APIs
I agree. The 3rd party libraries require maintenance at least and most likely further development but Idera's investors are not short of a few dollars. -
About Delphi 11.3 CE Platform Selection
David Champion replied to ChenShou's topic in Delphi IDE and APIs
It would not be a big investment to acquire these 3rd party libraries and make them available for free. A better way to increase revenue is to grow the user base. Trying to lure developers beyond the Professional SKU by hiding the value in the Enterprise works well when the content is attractive to larger companies. The Linux platform is attractive to all types of customer. This is a missed opportunity to grow the Community Edition in a similar fashion to Python for Delphi. -
About Delphi 11.3 CE Platform Selection
David Champion replied to ChenShou's topic in Delphi IDE and APIs
I don't think Embarcadero has thought this through. Linux clearly needs to be available in all SKU especially in the Community Edition which would be taken up by the casual or hobbyist developer. -
What's the best forum for Spring4D?
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The level entry M2 Mac Mini is excellent value for money but do some research on the speed of the SSD drive, The 256GB model uses a single NAND chip resulting in 50% slower performance compared to the 512GB model. To run headless you are likely to need an HDMI dummy plug. The headless ghost display emulator is available on Amazon.
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Best Practice Question: Bidirectional EXE-to-EXE communication
David Champion replied to Alexander Halser's topic in RTL and Delphi Object Pascal
I have used the RemObjects Remoting SDK. This also has a degree of language and platform independence. The Remoting SDK has bidirectional TCP communications when using the called 'Super TCP Channel'. Remote procedure calls can be made asynchronously, includes client side proxy generation, security features and event notifications. -
Don't believe Delphi is a single pass compiler. If someone who knows more please comment.. edit: this Embarcadero blog suggests that it is single pass
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Project to create a language definition in BNF format started
David Champion replied to TurboMagic's topic in RTL and Delphi Object Pascal
There has been some discussion in the past about whether is even possible to catch every valid grammar production using BNF or EBNF. Because Object Pascal/Delphi compilers have used hand crafted parsers the language has evolved with some inconsistencies unchecked by formal grammars.