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Initial Release of NetWebView2Lib v1.3.0
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‎examples/0-NetJson.Parser.au3‎

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;~ #AutoIt3Wrapper_UseX64=y
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; NetWebView2Lib.JsonParser - Tutorial Script
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#include <MsgBoxConstants.au3>
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; Global objects handler for COM objects
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Global $oMyError = ObjEvent("AutoIt.Error", "_ErrFunc")
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; Initialize the COM Object
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Local $oJson = ObjCreate("NetJson.Parser")
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If Not IsObj($oJson) Then
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MsgBox(16, "Error", "Could not create NetWebView2Lib.JsonParser. Make sure the DLL is registered.")
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Exit
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EndIf
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ConsoleWrite("=== STARTING NETJSON TUTORIAL ===" & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite("+> 1. PARSING & BASICS <+" & @CRLF)
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; ---------------------------------------------------------
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Local $sRaw = '{"user": "John", "roles": ["Admin", "Tester"], "active": true}'
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$oJson.Parse($sRaw)
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ConsoleWrite("Full JSON: " & $oJson.GetJson() & @CRLF)
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; Check if a path exists
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If $oJson.Exists("user") Then
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ConsoleWrite("- User exists: " & $oJson.GetTokenValue("user") & @CRLF)
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EndIf
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; ---------------------------------------------------------
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ConsoleWrite("+> 2. ARRAY OPERATIONS <+" & @CRLF)
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; ---------------------------------------------------------
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; Get length of the 'roles' array
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Local $iRolesCount = $oJson.GetArrayLength("roles")
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ConsoleWrite("- Roles count: " & $iRolesCount & @CRLF)
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; Get specific element from array
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ConsoleWrite("- First role: " & $oJson.GetTokenValue("roles[0]") & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite("+> 2b. DEEP PATH NOTATION (The Power of JSON Path) <+" & @CRLF)
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; ---------------------------------------------------------
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Local $sComplex = '{"store": {"book": [{"title": "Coding 101", "price": 10}, {"title": "AutoIt Guru", "price": 25}], "location": "Athens"}}'
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$oJson.Parse($sComplex)
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; Direct access to a deep value using dots and brackets
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; Path: store -> book -> second element [1] -> title
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Local $sTitle = $oJson.GetTokenValue("store.book[1].title")
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Local $iPrice = $oJson.GetTokenValue("store.book[1].price")
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ConsoleWrite("- Deep Search (Title): " & $sTitle & @CRLF)
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ConsoleWrite("- Deep Search (Price): " & $iPrice & @CRLF)
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; Check existence of a deep path
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If $oJson.Exists("store.location") Then
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ConsoleWrite("- Store Location: " & $oJson.GetTokenValue("store.location") & @CRLF)
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EndIf
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; ---------------------------------------------------------
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ConsoleWrite("+> 3. MODIFICATION (SetTokenValue) <+" & @CRLF)
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; ---------------------------------------------------------
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$oJson.SetTokenValue("user", "George")
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$oJson.SetTokenValue("active", "false") ; Note: Values are sent as strings
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ConsoleWrite("- Updated User: " & $oJson.GetTokenValue("user") & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite("+> 4. FILE I/O <+" & @CRLF)
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; ---------------------------------------------------------
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; Save current state to a file
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$oJson.SaveToFile(@ScriptDir & "\settings.json")
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ConsoleWrite("JSON saved to file." & @CRLF)
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; Clear and Reload from file
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$oJson.Clear()
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ConsoleWrite("- After Clear, Json is: " & $oJson.GetJson() & @CRLF)
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$oJson.LoadFromFile(@ScriptDir & "\settings.json")
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ConsoleWrite("- Reloaded from file, User is: " & $oJson.GetTokenValue("user") & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite("+> 5. FORMATTING (Pretty vs Minified) <+" & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite(@CRLF & "--- PRETTY JSON ---" & @CRLF)
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ConsoleWrite($oJson.GetPrettyJson() & @CRLF)
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ConsoleWrite(@CRLF & "--- MINIFIED JSON ---" & @CRLF)
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ConsoleWrite($oJson.GetMinifiedJson() & @CRLF)
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; ---------------------------------------------------------
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ConsoleWrite("+> 6. ESCAPING TOOLS (Utility Methods) <+" & @CRLF)
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; ---------------------------------------------------------
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Local $sDirtyString = 'Hello "World" \ Name'
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Local $sEscaped = $oJson.EscapeString($sDirtyString)
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ConsoleWrite("- Escaped: " & $sEscaped & @CRLF)
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ConsoleWrite("- Unescaped: " & $oJson.UnescapeString($sEscaped) & @CRLF)
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ConsoleWrite("--- TUTORIAL COMPLETED ---" & @CRLF)
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; Clean up object
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$oJson = Null
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; ---------------------------------------------------------
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Func _ErrFunc($oError) ; User's COM error function. Will be called if COM error occurs
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; Do anything here.
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ConsoleWrite(@ScriptName & " (" & $oError.scriptline & ") : ==> COM Error intercepted !" & @CRLF & _
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@TAB & "err.number is: " & @TAB & @TAB & "0x" & Hex($oError.number) & @CRLF & _
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@TAB & "err.windescription:" & @TAB & $oError.windescription & @CRLF & _
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@TAB & "err.description is: " & @TAB & $oError.description & @CRLF & _
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@TAB & "err.source is: " & @TAB & @TAB & $oError.source & @CRLF & _
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@TAB & "err.helpfile is: " & @TAB & $oError.helpfile & @CRLF & _
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@TAB & "err.helpcontext is: " & @TAB & $oError.helpcontext & @CRLF & _
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@TAB & "err.lastdllerror is: " & @TAB & $oError.lastdllerror & @CRLF & _
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@TAB & "err.scriptline is: " & @TAB & $oError.scriptline & @CRLF & _
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@TAB & "err.retcode is: " & @TAB & "0x" & Hex($oError.retcode) & @CRLF & @CRLF)
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EndFunc ;==>_ErrFunc

‎examples/1-BasicDemo.au3‎

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#AutoIt3Wrapper_UseX64=y
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#include <GUIConstantsEx.au3>
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#include <WindowsConstants.au3>
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; ==============================================================================
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; WebView2 Multi-Channel Presentation Script
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; ==============================================================================
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; Register the exit function
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OnAutoItExitRegister("_CleanExit")
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; Global objects
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Global $oManager, $oBridge
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Global $oEvtManager, $oEvtBridge
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; COM Error Handler
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Global $oMyError = ObjEvent("AutoIt.Error", "_ErrFunc")
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; GUI & Controls
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Global $hGUI, $idLabelStatus
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Main()
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Func Main()
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; 1. Create the UI
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$hGUI = GUICreate("WebView2 .NET Manager - Community Demo", 900, 650)
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$idLabelStatus = GUICtrlCreateLabel("Status: Initializing Engine...", 10, 620, 880, 20)
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GUICtrlSetFont(-1, 9, 400, 0, "Segoe UI")
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GUISetState(@SW_SHOW)
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; 2. Instantiate the .NET Manager
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$oManager = ObjCreate("NetWebView2.Manager")
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If Not IsObj($oManager) Then
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MsgBox(16, "Error", "Could not create WebView2 Manager. Please register the DLL.")
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Exit
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EndIf
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; 3. Setup Events (Crucial: Define interfaces explicitly)
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; Channel 1: Manager Events (INIT_READY, NAV_COMPLETED, etc.)
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$oEvtManager = ObjEvent($oManager, "WebView_", "IWebViewEvents")
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; Channel 2: JavaScript Bridge (Messages from JS to AutoIt)
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$oBridge = $oManager.GetBridge()
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$oEvtBridge = ObjEvent($oBridge, "Bridge_", "IBridgeEvents")
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; 4. Initialize the Browser
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; We pass an empty string for the URL to prevent "ConnectionAborted"
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; and wait for our INIT_READY signal.
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$oManager.Initialize(($hGUI), "", 10, 10, 880, 600)
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; Main Loop
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While 1
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Switch GUIGetMsg()
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Case $GUI_EVENT_CLOSE
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ExitLoop
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EndSwitch
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WEnd
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GUIDelete($hGUI)
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EndFunc ;==>Main
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Func _CleanExit()
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; Check if the object exists before calling methods to avoid COM errors during crash
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If IsObj($oManager) Then
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$oManager.Cleanup()
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EndIf
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; Release the event sinks
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$oManager = 0
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$oBridge = 0
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$oEvtManager = 0
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$oEvtBridge = 0
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$oMyError = 0
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ConsoleWrite(">>> Application exited cleanly." & @CRLF)
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EndFunc ;==>_CleanExit
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; ==============================================================================
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; ; Function to update a text element inside the WebView UI
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; ==============================================================================
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Func UpdateWebUI($sElementId, $sNewText)
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; Escape backslashes, single quotes and handle new lines for JavaScript safety
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Local $sCleanText = StringReplace($sNewText, "\", "\\")
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$sCleanText = StringReplace($sCleanText, "'", "\'")
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$sCleanText = StringReplace($sCleanText, @CRLF, "\n")
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$sCleanText = StringReplace($sCleanText, @LF, "\n")
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Local $sJS = "document.getElementById('" & $sElementId & "').innerText = '" & $sCleanText & "';"
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If IsObj($oManager) Then
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$oManager.ExecuteScript($sJS)
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EndIf
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EndFunc ;==>UpdateWebUI
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; ==============================================================================
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; EVENT HANDLER: WebView Manager (C# Internal Events)
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; ==============================================================================
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Func WebView_OnMessageReceived($sMessage)
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ConsoleWrite(">>> [CORE EVENT]: " & $sMessage & @CRLF)
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; Separating messages that have parameters (e.g. TITLE_CHANGED|...)
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Local $aParts = StringSplit($sMessage, "|")
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Local $sCommand = StringStripWS($aParts[1], 3)
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Switch $sCommand
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Case "INIT_READY"
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GUICtrlSetData($idLabelStatus, "Status: Engine Ready. Loading HTML UI...")
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$oManager.NavigateToString(_GetDemoHTML())
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Case "NAV_STARTING"
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GUICtrlSetData($idLabelStatus, "Status: Navigation started...")
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Case "NAV_COMPLETED"
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GUICtrlSetData($idLabelStatus, "Status: Application Ready.")
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Case "TITLE_CHANGED"
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; If you want to change the title of your GUI based on the page
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If $aParts[0] > 1 Then WinSetTitle($hGUI, "", "WebView2 - " & $aParts[2])
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Case "ERROR", "NAV_ERROR"
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Local $sErr = ($aParts[0] > 1) ? $aParts[2] : "Unknown"
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GUICtrlSetData($idLabelStatus, "Status: Error " & $sErr)
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MsgBox(16, "WebView2 Error", $sMessage)
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EndSwitch
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EndFunc ;==>WebView_OnMessageReceived
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; ==============================================================================
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; EVENT HANDLER: Bridge (JavaScript Messages)
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; ==============================================================================
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Func Bridge_OnMessageReceived($sMessage)
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Local Static $iMsgCnt = 0
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ConsoleWrite(">>> [JS MESSAGE]: " & $sMessage & @CRLF)
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If $sMessage = "CLOSE_APP" Then
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If MsgBox(36, "Confirm", "Exit Application?", 0, $hGUI) = 6 Then Exit
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Else
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MsgBox(64, "JS Notification", "Message from Browser: " & $sMessage)
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$iMsgCnt += 1
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UpdateWebUI("mainTitle", $iMsgCnt & " Hallo from AutoIt!")
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EndIf
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EndFunc ;==>Bridge_OnMessageReceived
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; ==============================================================================
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; HELPER: Demo HTML Content
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; ==============================================================================
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Func _GetDemoHTML()
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Local $sH = '<html><head><style>' & _
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'body { font-family: "Segoe UI", sans-serif; background: #202020; color: white; padding: 40px; text-align: center; }' & _
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'.card { background: #2d2d2d; padding: 20px; border-radius: 8px; border: 1px solid #444; }' & _
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'button { padding: 12px 24px; cursor: pointer; background: #0078d4; color: white; border: none; border-radius: 4px; font-size: 16px; margin: 5px; }' & _
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'button:hover { background: #005a9e; }' & _
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'</style></head><body>' & _
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'<div class="card">' & _
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' <h1 id="mainTitle">WebView2 + AutoIt .NET Manager</h1>' & _ ; Fixed ID attribute
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' <p id="statusMsg">The communication is now 100% Event-Driven (No Sleep needed).</p>' & _
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' <button onclick="window.chrome.webview.postMessage(''Hello from JavaScript!'')">Send Ping</button>' & _
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' <button onclick="window.chrome.webview.postMessage(''CLOSE_APP'')">Exit App</button>' & _
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'</div>' & _
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'</body></html>'
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Return $sH
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EndFunc ;==>_GetDemoHTML
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; ==============================================================================
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; COM ERROR HANDLER
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; ==============================================================================
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Func _ErrFunc($oError)
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; Do anything here.
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ConsoleWrite(@ScriptName & " (" & $oError.scriptline & ") : ==> COM Error intercepted !" & @CRLF & _
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@TAB & "err.number is: " & @TAB & @TAB & "0x" & Hex($oError.number) & @CRLF & _
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@TAB & "err.windescription:" & @TAB & $oError.windescription & @CRLF & _
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@TAB & "err.description is: " & @TAB & $oError.description & @CRLF & _
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@TAB & "err.source is: " & @TAB & @TAB & $oError.source & @CRLF & _
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@TAB & "err.helpfile is: " & @TAB & $oError.helpfile & @CRLF & _
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@TAB & "err.helpcontext is: " & @TAB & $oError.helpcontext & @CRLF & _
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@TAB & "err.lastdllerror is: " & @TAB & $oError.lastdllerror & @CRLF & _
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@TAB & "err.scriptline is: " & @TAB & $oError.scriptline & @CRLF & _
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@TAB & "err.retcode is: " & @TAB & "0x" & Hex($oError.retcode) & @CRLF & @CRLF)
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EndFunc ;==>_ErrFunc

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