I am using the WinForms WebBrowser control in my C# application and I can interact with the JS code on the web page by setting a COM class in the ObjectForScripting property of the control.
Is it possible to get the JavaScriptContext object from the web browser control that I can use with the ChakraCore API?
No sir, ChakraCore is part of the Microsoft Edge JavaScript engine. It is literally a separate engine. The web browser control uses IE's engine. Although admittedly it doesn't help that the dev team at MS called The MS Edge Engine Chakra when they were calling the engine from IE 9 forward as Chakra also.
Anyway if you want to use/embed the ChakraCore engine from C# they did create a getting started page. I will link it here.
The API for the winforms Webbrowser control Engine is here. The is a wrapper around the COM API. If you need to get to the COM api to do advanced things, you will need MSHTML, which you add as a COM reference to Microsoft Html Object library. The reference for MSHTML is here.
Related
I wonder if it is possible to use chromium engine inside google chrome or the google chrome itself to render a web page inside my WPF application instead of using traditional WebView (because it's the IE engine and it's awful -_-) or implementing CEFSharp (because it uses about 200 MB of space only for the chromium engine)
so in this case I need the target pc to has installed google chrome or any other(firefox or ...)
Soooo ... is there any solution?
thanks in advance
EDIT
I want to create applications based on web UI, - because of being easy and powerful - I know some providing this feature, e.g. CEF Sharp WPF or electron js but they include a full chromium engine with the app. I don't want this.
I want to create my app as light as possible, and my idea is to use chromium engine of a modern browser, that almost everyone has one.
For example, imagine that the user has installed google chrome.
first I locate the installation folder
I use chromium.exe -render path/to/file.html(imaginary) command to render my application UI.
finally bind the UI events to my native code. (e.g. c#(wpf) or any language that you can create desktop apps with it)
One solution is creating web apps by installing a website with the browser. but with that you cannot for example create or read some files in user pc, or any similar operation.
I'm looking for the most light-weight solution...
There is a new Chromium based WebView2 control that you can use to embed modern web content in your WPF application.
Please refer to the docs for more information about the prerequisites and how to use it:
Getting started with WebView2 in WPF
Explanation
So, let's say that you want your UI to be rendered in a chromium environment(aka a browser)… right?
let's take a look at electron js:
it uses NodeJS as backend.
it uses an embedded browser for frontend.
the language used is JavaScript due to NodeJS.
So, you want to use the client's browser to render your frontend instead of embedding a browser inside it.
well, don't embed it!!
you can create a web application(e.g. opened by typing localhost:<port> in browser1) using NodeJS and handle your IPC(between frontend and backend) using ajax calls or a socket connection.
that way you are doing exactly what an electron app does, except that, electron uses a bundled browser.
now you made your app lighter, also if your client do have NodeJS installed, you don't need to bundle NodeJS!
--- inspired by jupyter notebooks ---
Possible Solutions
use NodeJS as backend.
use python and combine it with Flask or Django as backend. (I think this would be the most lightweight solution)
use PHP as backend. (the best, personal opinion)
use ASP.NET/Blazor as backend. (as mentioned in the comments; but doesn't seem to be a lightweight solution)
or use any language that you can create a web application with that!
make a runApp.bat or runApp.sh to simply run your server and open the browser automatically.
I'm trying to create a new UI for an app I developed for the Windows Store using the Windows Runtime API. This new client is going to be a WPF Desktop App. I'm trying to reuse as much code as I can but I'm facing several issues.
Fortunately there's a way to use WinRT in a WPF Desktop app (see this and this)
Now I'm blocked by the following issue:
The MediaCapture class has a method to start the preview of a device, after I've started the preview I can create a CaptureElement to display the preview.
CaptureElement is part of Windows.UI.Xaml.Controls and cannot be used in containers from System.Windows.Controls in which the WPF UI is built.
Am I going anywhere with this approach? what would you recommend? How can I display the preview of a device in the WPF app?
Thanks in advance
CaptureElement can't be used in desktop applications - the documentation says "[Windows Store apps only]". In general - the UI controls from WPF and WinRT/XAML can't be used outside of their respective domains (desktop/immersive UI). In a WPF app you need to use WPF controls - e.g. DirectShow for camera capture,
I am trying to use UI Automation to record screen interactions in my Silverlight app. I have the Automation Peers for my control setup but am not able to figure out how to track these controls.
For my WPF app I would get hold of AutomationElement.RootElement and then navigate down to my App and setup Automation event Handlers on the controls I am interested in.
How would I do the same for Silverlight app? I want the screen recorder to start automatically whenever my app runs. The screen recorder has to sit within my App. But the System.Windows.Automation silverlight namespace doesn't have a AutomationElement class. So how would I do this in Silverlight?
Thanks
Shivaprasad
As you observed, the AutomationElement class doesn't exist in Silverlight: the UIAutomation API is available only in the full .Net framework. Silverlight is only supported as an UI Automation provider - that is, Silverlight applications can be controlled by UI Automation, but they are not able to control other applications.
For this reason, I don't think you're going to be able to create your screen recorder within the Silverlight application - unless you are prepared to resort to some nasty hacks.
Such hacks might include:
Using Silverlight COM Automation to call the new UIAutomation COM API. Users would be required to have the COM API installed on their machines in addition to Silverlight.
Create a "server" application in .Net that you can run on the target machine that does the actual UIAutomation work, then communicate with this from your Silverlight application using WCF.
I am planning to use Silverlight control for bing map. It will be used in a ASP.Net website.
Note: I am new to Silverlight and Bing map.
How the Silverlight bing map control will behave? Will the bing map service be called from the client browser or the web server?
Is there any architecture diagram related to this?
Please help.
Thanks
Lijo Cheeran Joseph
A good place to start is on the following link:
http://www.microsoft.com/maps/product/faq.aspx
I do not know about any architecture diagrams. With the Silverlight control (the preferred control at this point, over the old AJAX control), the map service is called from the client browser...it is called from within the Silverlight application that hosts the map control, which like all Silverlight applications, runs exclusively on the client.
You could make calls to the Bing web services server-side, then use that data in some way, but if you're going after an interactive map, you will want the Silverlight control.
I am beginner in silverlight..I have created a silverlight project. When a new silverlight project is created it is automatically creating a silverlight application and one web application. I have added a class in both applications. Now I want to access a method of web application class into silverlight application class. Is it possible? I have tried to add web application reference to silverlight but VS is not allowing. Is there any another way to do??
What you need is called WCF. A really simple tutorial that should get you going is found here: How to call WCF methods from Silverlight controls
Fundementally WCF allows the silverlight client to make method calls on a class instance hosted on the web site.
Yes it is possible, but not in the normal way. A Silverlight assembly can only reference another Silverlight assembly (this is a limitation of VS2008, i don't know if it has been changed in VS2010).
What you need to do is add an existing file to your Silverlight project, when the file browse dialog opens you navigate to the class file you want to reuse, but instead of just clicking the Add button, click on the little down arrow on the button and choose Add as link - now the file will "exist" in both projects and can be used in both.
If you are going to do this repeatedly though, you will want to move those shared class files out into a separate assembly, do a project reference from your web app, and have the equivalent Silverlight class library mirroring it (sharing the files as links), and then project reference that Silverlight class library from your Silverlight app.