interceptar alert de codigo js

[sistemas]

olá, preciso pegar o retorno deste codigo em js no webview4delphi ---
var rows = document.getElementsByTagName
("table")[1].rows;
var totalRowCount = rows.length;
alert(totalRowCount-3);
for (var j = 0; j < (totalRowCount-3); j++) {
// numero de rows - linhas
for (var i = 0; i < (15); i++) { // numero
de campos - colunas
var last = rows[j];
var cell = last.cells;
var value = 'J' +String( j).padStart(2, '0') + 'I' +
String(i).padStart(2, '0') + ' - ' + cell.innerHTML
alert(value)
}
}

este codigo funciona no delphi interceptando o alert...
como eu faria isto no webview4delphi .
grato!

[salvadordf]

Hi,

Set TWVBrowserBase.DefaultScriptDialogsEnabled to false and use the TWVBrowserBase.OnScriptDialogOpening event to suppresses or replace JS dialogs with custom dialogs.

If you are using this to send information to Delphi/Lazarus then consider using the code in the BrowserHostAppCommunication demo.

[sistemas]

tentei capturar o retorno do script
através de
procedure TMainForm.WVBrowser1ScriptDialogOpening(Sender: TObject;
const aWebView: ICoreWebView2;
const aArgs: TCoreWebView2ScriptDialogOpeningEventArgs);

ele dá o alert na tela mas não passa pela procedure acima no debug.

[salvadordf]

It's necessary to set TWVBrowserBase.DefaultScriptDialogsEnabled to False when the browser is already initialized.

Use the TWVBrowserBase.OnAfterCreated event to set TWVBrowserBase.DefaultScriptDialogsEnabled to False.

After that, you will start getting the TWVBrowserBase.OnScriptDialogOpening events.

[sistemas]

valeu, deu certo, obrigado!