Skip to main content

How to get windows.external to work when using Awesomium.NET – Take 2

Image
By
I got asked to provide the code from my post on How to get windows.external to work when using Awesomium.NET. Since I don’t have it (I don’t know why, but it’s gone…). I decided to create a new example, post it on this repo at github and hopefully don't loose it anymore ;).

I’m assuming you are familiar with Awesomium.NET and just can’t figure out how to get windows.external at work (which is a must have on embedded web browser controls). I’m not going to show you what is Awesomium or how to use it, there’s a lot of good tutorials on the official site and it has no sense I retype that here. So, enough jibber jabber, let’s go to the code.

First of all, be sure you setup the right platform prior to compile the code (Last time I checked Awesomium.NET only works on x86).


If you download the sample code, you will find this html file within the solution. 


The whole point of _external.html_click is to marshall the function call from javascript to c#. In order to do that, you have to “register” the global object _external to just let Awesomium.NET to know about that.

Here is the C# code you have to use to register the global object and set up the callback that will be handling the javascript calls. 


Now if you run the app, you should see something like this.



Enter your name, hit Greet and you should get your C# code called. That's it!


Labels:

Comments

Post a Comment

Popular posts from this blog

Migrating an ASP.NET MVC 4 app from Azure websites to WinHost

By
About a week ago I've to migrate an ASP.NET MVC 4/EF5 application from Azure websites to WinHost. While the process was really smooth, there were some caveats related to database connections that I want to share with you. Create and setup the ftp profile on VS and configure the connection string was really easy, WinHost provide you those values and there is nothing special here. But once you deploy your website and try to see it online, you may get the “yellow screen of dead” with the message: "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)" Assuming you wrote the connection string properly, this happens because you cannot use the default connection name in your web.c...
2 comments
Read more

How to show excel files inside the .NET Webbrowser Control

By
If you are reading this, chances are you been banging your head against the wall for a couple of hours (or even days) trying to show excel files inside the WinForms webbrowser control. Possible reasons you ended up in here: You had working code that got broke after upgrading from Win 7. Your code doesn’t work the same way between machines running different (newer) versions of IE. A download box pops up every time your app tries to show an excel file inside the webbrowser control (you wanna show the actual content). You just have no clue on how to get excel working into the .NET embedded webbrowser control. You are trying to implement IInternetSecurityManager and don’t know where to start. (Or how don’t know how to delegate calls to your security manager). Among many other, maybe….. Yes, COM is a PITA, so is ActiveX and IE (Embedded or full for that matter). And no, showing excel files inside the webbrowser control shouldn’t be that hard, but sometimes we have...
3 comments
Read more

How to replace text with images on Word documents using C#

By
This post it’s a reply to a question I got from a previous post that shows how to work with Word templates from C# code . If you haven’t read it, I recommend to do so because I’m not going into details here. But basically it was about how to create a Word document from a template and perform same text manipulation. So, the question from Marcel Kieboom  was “Do you know if it would be also possible to replace one of the words with an image which is locally stored?” The answer is yes, and this is how you can do that. Based on the same convention I had used in the previous post, I should have a template like this: What I’m trying to do here is replace the text [angus-young] for an actual pic of Angus. The technique I’m using it’s pretty common on web sites and basically consist in have an image with a matching name for each keyword I want to replace and then create the image path dynamically. This is the C# code to do that. * When I execute t...
19 comments
Read more