Sherzod

Hello, As far as I know, this is a general limitation of browser and web architecture.

Even if you trigger printing manually via window.print() and use onafterprint, there’s still no way to detect whether the user actually printed the document or canceled the dialog. The browser does not expose that information for privacy and security reasons — you can only detect that the print dialog was closed.

Hello, What kind of content is being displayed inside the TUniHTMLFrame? Is it a static HTML or?

What's the reason you need to detect when the user clicks the browser's print button? Are you trying to log the action, prevent something, or trigger other logic? Or do you mean the Print button that's shown inside the PDF viewer toolbar?

Thanks for the clarification! Just to better understand — are you using native uniGUI components to display the PDF, or is it embedded some other way (e.g., via <embed> or iframe)?

I'm glad to see you’ve found a working solution!

Hello, Could you please clarify which "Print" button you are referring to? Is it a custom button inside the page loaded in TUniURLFrame, or the browser's native print dialog (e.g., window.print())? Also, what kind of content is being displayed in the frame — a PDF, HTML page, or something else? Knowing these details would help provide a more accurate answer.

Thank you. Can you make a simple testcase?

Hello @irigsoft This solution might help — try analyzing and modifying the code. https://t.me/uniguidevelopers/6

Добрый вечер! Уточните пожалуйста Ваш случай. Это событие срабатывает на любые входящие HTTP-запросы, вне контекста сессии.

procedure TUnimLoginForm1.UnimLoginFormReady(Sender: TObject); begin UniSession.AddJS( 'Ext.defer(function(){ ' + 'var els = document.getElementsByClassName("x-formpanel-body-el");' + 'if (els.length > 0) {' + 'els[0].style.backgroundImage = "url(files/BKG.png)";' + //'els[0].style.backgroundSize = "cover";' + //'els[0].style.backgroundRepeat = "no-repeat";' + //'els[0].style.backgroundPosition = "center";' + '} else {}' + '}, 100);' ); end;

Свойство background-repeat в CSS можно вообще не указывать тогда, так как у него есть значение по умолчанию — это repeat.

Hello, Yes, you can try this: // my-module.js import { greet } from './greeting.js'; greet('Luca Cenci'); window.MyGreetFunction = greet;

Hello, Yes, it only works at session start. You can find solutions using CSS and JS on the forum to change the background dynamically.

Hello, Try this approach for now: procedure TMainForm.UniFormCreate(Sender: TObject); begin UniDBGrid1.JSInterface.JSConfig('bufferedRenderer', [False]); end;