Remy Lebeau

Can you provide a more complete reproducible example? Are you suggesting that when your custom TreeView is placed on a TForm then the TreeView shows a green background, but when the TreeView is placed on a TFrame than the TreeView does not show a green background? Is it only limited to IDE plugins, or do you have the same problem if you use the TFrame in an application?

I haven't seen anything yet.

The JSON spec allows whitespace between tokens. Any parser that can't handle that is broken.

There is no way to diagnose that without knowing what the server considers to be bad. If the response body doesn't contain an error message with more detail, then you will have to contact the server admin so they can look at the request on their end. That being said, here are a few notes about your code... This is wrong. The Request.Host property should be just the hostname by itself (ie 'uat.mreceipts.com'). But you don't need to set the Request.Host property manually at all, TIdHTTP can handle that internally for you, so you should remove this property assignment completely. You don't need that object at all, since you are just discarding it without reading anything from it. You can pass nil to the AResponseContent parameter of TIdHTTP.Post() if you want to ignore the response body. When sending authentication manually, make sure to set the Request.BasicAuthentication property to False so TIdHTTP won't try to send an 'Authorization: Basic ...' request header. The Method and SSLVersions properties are mutually exclusive. Setting one updates the other. So you do not need to set them both. In this case, use only the SSLVersions property since you are enabling multiple TLS versions. You can remove the assignment of the Method property.

AFAICR, yes. My old team used BCB 5 and 6 exclusively, and when we started using source control, we had to manually set our DFMs to text format.

According to the release announcement, you shouldn't have to reinstall any installed components, only GetIt packages.

WaitForMultipleObjectsEx() allows you to stop waiting if an I/O completion routine or APC is executed on the calling thread. That has nothing to do with message processing. You are thinking of MsgWaitForMultipleObjects() instead.

A more efficient approach would be to wait on both your EventSignal and the RTL's Classes.SyncEvent at the same time, calling CheckSynchronize() only when SyncEvent is signaled (ie, when there are sync requests pending). This way, when neither condition is true, your calling thread can actually go to sleep instead of running a busy loop. For example: uses ..., Classes, Windows; var Handles: array[0..1] of THandle; begin ... // Simulate blocking Handles[0] := oOutLook.EventSignal.Handle; Handles[1] := Classes.SyncEvent; repeat case Windows.WaitForMultipleObjects(2, @Handles[0], False, Infinite) of WAIT_OBJECT_0: Break; WAIT_OBJECT_0 + 1: CheckSynchronize; else RaiseLastOSError; until False; ... end;

https://blogs.embarcadero.com/rad-studio-12-2-athens-inline-patch-1-available/

AFAIK, there are no such tools. You just have to analyze your project sources yourself. Identify which components your project uses, and which package each component comes from. Then determine whether each package comes with the IDE, was developed in-house, or was obtained from a 3rd party. It might be worth writing a small tool yourself to help you parse your DFMs/code looking for component names and use RTTI to extract unit/package information for each one. But I don't recall right now whether the RTTI in C++Builder 5 was rich enough to have that kind of information. I'll have to look next time I'm at my computer.

Interesting! I never thought of that. I learned something new today 😁 I'll definitely have to play with this in my projects.

TFrame has a virtual constructor, so you can use a meta class variable for this task, eg: type TFrameClass = class of TFrame; var Frame: TFrame; FrameClass: TFrameClass; begin ... if SomeCondition then FrameClass := TFrame2; else FrameClass := TFrame3; Frame := FrameClass.Create(Owner); ... end;

Start with the Unicode section of Embarcadero's Migration and Upgrade Center. Note that AnsiString and all of the other things you mentioned still exist. You just need to be aware of how they interact with Unicode strings if you don't want to completely rewrite your code.

Start with Embarcadero's Migration and Upgrade Center. A LOT has changed since the old days of C++Builder 5 (coming from someone who spent most of his career with C++Builder 6). There is no one single thing to focus on. Depending on what your codebase uses (standard C++ features/libs or Borland-specific extensions/libs), and what your goals are, you may be in for a short migration or a long one.

Why not simply define a base class for the items to derive from? Then you can have an array of base items, and the derived classes can cast the items as needed. type TItemBase = class end; TAncestor = class FData: TArray<TItemBase>; // ... end; TAncestorClass = class of TAncestor; TDescendant1 = class(TAncestor) type TItem = class(TItemBase) //... end; // ... // cast FData elements to TItem as needed... end; TDescendant2 = class(TAncestor) type TItem = class(TItemBase) //... end; // ... // cast FData elements to TItem as needed... end; ...

The Data.DB and System.IOUtils units both define an identifier named faReadOnly (as a member of TFieldAttribute and TFileAttribute, respectively). The error message means both units are in scope and the compiler doesn't know which one you want to use. So you will have to qualify it explicitly, eg: Include(attributes, TFileAttribute.faReadOnly); Exclude(attributes, TFileAttribute.faReadOnly);

The VCL has a habit of recreating a whole window even if CreateWindow/Ex() is not actually required. Many UI attributes can actually be updated dynamically via SetWindowLong/Ptr() or control-specific APIs, but the VCL doesn't do things that way in most cases (sometimes it does).

At my last company, I developed and maintained a central Windows service that all of our other products communicated with to 1) write entries in a centralized log file, 2) send out notifications, and 3) track heartbeats. I used a free-threaded ActiveX/COM object for the communication, and just about every thread of every product made use of this COM object. Each message identified which product and internal component it belonged to. Each product would register its heartbeats and then update them at regular intervals until shutdown. If a heartbeat ever timed out unexpectedly (because a thread had frozen or died, or was just running a task for too long) then the service would send out a notification containing those details to our tech support and/or server admins (usually an email, but other kinds of notifications were also supported).

This one was just brought to my attention: https://github.com/DelphiWorlds/JID "JID was created primarily as an alternative to Java2OP that ships with Delphi, in order to address some shortcomings in Java2OP."

I'll see if the problem exists in the latest Delphi. If the problem continues, please file a bug report with Embarcadero about Java2Op still being broken. You might need to just fix the generated code manually. Or look around to see if there is a 3rd party importer that works better than Java2Op.

Sorry, that was a copy/paste typo on my part. 'port' should be 'driver'. I have corrected it. Then the Java2Op translation is wrong. According to the official Android documentation, not of the UsbManager methods are static, so none of them should be declared in JUsbManagerClass, they should all be in JUsbManager instead. Which version of RADStudio/Java2Op are you using? This was a known problem in earlier Delphi versions (not sure if it's fixed in the latest version, I'll have to check), for instance: RSP-15473: Java2Op emits erroneous code RSP-24029: Regression in Java2OP so that instance methods are treated as class methods RSP-40400: Java2OP say often that method as Static (class) when they are not

That website provides examples in Java. Did you try matching them up to the classes in the Delphi unit which you generated? What exactly have you tried so far and are having trouble with? For instance, the 1st example to open a device might look something like this: uses ..., Androidapi.JNI.JavaTypes, Androidapi.JNI.GraphicsContentViewText, Androidapi.Helpers, JavaInterfaces; var manager: JUsbManager; availableDrivers: JList; driver: JUsbSerialDriver; connection: JUsbDeviceConnection; port: JUsbSerialPort; begin // Find all available drivers from attached devices. manager := TJUsbManager.Wrap(TAndroidHelper.Context.getSystemService(TJContext.JavaClass.USB_SERVICE)); availableDrivers := TJUsbSerialProber.JavaClass.getDefaultProber.findAllDrivers(manager); if availableDrivers.isEmpty then begin Exit; end; // Open a connection to the first available driver. driver := TJUsbSerialDriver.Wrap(availableDrivers.get(0)); connection := manager.openDevice(driver.getDevice); if connection = nil then begin // add UsbManager.requestPermission(driver.getDevice(), ..) handling here Exit; end; port := TJUsbSerialPort.Wrap(driver.getPorts.get(0)); // Most devices have just one port (port 0) port.open(connection); port.setParameters(115200, 8, TJUsbSerialPort.JavaClass.STOPBITS_1, TJUsbSerialPort.JavaClass.PARITY_NONE); ... end;

Can you fix the font formatting of your message? Your text is cut off. Can't read what the actual problem is that you are having with the converted code.

The user did not interact with the ComboBox directly, they interacted with the Panel instead. The Panel's OnClick event invoked an API call to the ComboBox (the ItemIndex setter sends a CB_SETCURSEL message to the ComboBox), thus the text change is not a user-triggered action from the ComboBox's perspective, it is an application-triggered action. The ComboBox's OnChange event is fired in reply to a CBN_EDITCHANGE notification from the ComboBox, and CB_SETCURSEL does not trigger a CBN_EDITCHANGE notification.

Sounds like a bug to me. Report it to Embarcadero: https://qp.embarcadero.com