I just lost 5 hours looking for a answer which i haven't been able to find :p
First, I'd like to force a trusted application (i need to access the file system) to display into the browser. Based on what i found on google a trusted application must be installed and launched as a desktop application (also called out-of-browser application).
So, i want to have an installed application on the client side but meanwhile, the user must also be able to start this same application into a browser window when he goes on my web site. Is this possible ?
Second, I'd like to give to the user the possibility to start the application from the browser. To be clear, the application is installed on the client computer but i want a button on my web site which starts the desktop application. How can i do that ?
Thanks
The answers are sort of and no.
Yes you can run an application that has been installed on the client also in the browser. However, not all of the installed application features will be available. Anything that requires elevated trust will not work inside the browser.
No you can't launch the installed application programmatically from within code running in the browser. The best you can do is display a polite message to the user to the effect that they have this app already installed and in order to access all of its feature they will need to launch it.
Yes, it is possbile since Silverlight 5, see my answer on silverlight-4-elevated-permission-inside-the-browser
Related
I have created WPF app and installed in two different PC. now I want that when I click one button from app in 1st PC, then I should get desktop notification in 2nd PC.
So I don't know how it will be done. Whether I have to use WCF or not or anything else? If I've installed this app in multiple PC then how should I send notification to particular?
I've tried to use signalR but I didn't understand how to invoke windows form method.
The application will not be closed. it'll just minimized in the tray. so my idea is that we can invoke App method from using WCF and show notification.
I want this kind of notification for my app but from webservice:
You can use self hosted WCF like here:
https://msdn.microsoft.com/en-us/library/ms731758(v=vs.110).aspx
Use net tcp binding, it will not require administrative rights.
Also there is a need to maintain a list of addresses/hosts of the PCs where your app runs. Then according to some logic you have there, choose the one that should show your notification.
You can also use a central app that coordinates, it may be a web app. Then signalR can be helpful. It becomes like a standard chat app... google can find you plenty of implementations for that.
We are trying to integrate Silverlight components in Outlook task panel which is developed by Outlook Javascript API. However when mailapp(task panel) loaded, it appears error and it prompts the Silverlight addin failed to run and please check security settings in “Internet Options”. I also tried adding website URL into IE trusted sites list, but this error remains. But I also notice that it works fine in IE browsers.
I know the mailapp (task panel) initials a web browser (IE kernel) in embedded mode. But I really want to confirm whether Silverlight is supported or NOT in MailApp？ If it's supported, how should I do?
Anyone gives me the right answer will save my life. Thanks in advance.
It prompts security settings conflicted in MailApp
But it works fine in a separate IE browser
Currently, I have full access to a local Windows IIS System in which we execute a windows forms application as a processes in which the winform app runs and takes a screen shot of itself and the web call returns the URL of the saved image. The full process looks like -
User navigates to webpage
User inputs variables on web page and submits it to IIS end point.
IIS takes variables, runs Process.Start on winform app passing in variables.
IIS returns the URL from the screen capture of the winform app.
Is this something that is doable on Azure or Amazon? I'd like to put this in the cloud but I'm not sure if security restrictions would prevent an app like this from being executed as we had to give specific permissions to get this to work.
If you do this now on a server with IIS, you would be able to do it in the cloud (azure or amazon although I have no amazon experience so I'm guessing). The real question is what would you have to deploy. In this case, you cannot use an app service as your platform for this, you would have to run it in a virtual machine with IIS and configure everything as you do now. Or, if you are adventurous and need load balancing, etc. you could try a virtual machine scale set.
One caveat, since I do not know what the windows application does, what it depends on, you may need to put in some networking configuration if the windows app communicates back to an on-prem database or file store.
We have a requirement to start a WPF application with specific parameters from a link in a browser.
We are wondering if this is possible?
As an alternative could we embed the web application in a WPF browser control, and read the values out of the html web page?
Several possibilities :
if you control the browser (i.e. if you are in an intranet scenario, and have the opportunity to deploy applications), you can :
create an activex or plugin that runs the application
register a new uri scheme to interpret the url of kind "yourapplication://yourarguments"
(complex): deploy a listening app ran under the user session, and from the webapplication, ask this listening app to run the target application
reduce the security of the browser (not recommended)
if you don't control the browser:
create a clickonce application... this involves a setup, but which does not require admin privilege
Moving to Silverlight also might be an option, depending on your needs. SilverLigth V5 (still in beta) notably adds the ability for an admin to control the rights of the application via a GPO
Note: My feelings is the later option (Silverlight) is far more preferable because it's a lot more cleaner and less security hole factor. However, it can only be done if your requirements fits into the SL features
It is not possible to call client app from a browser, previously it was possible from activex controls but for that you need to have a signed library, in wpf you can make browser based application but you cant embed your web app in it.
So partially you are correct if you used wpf app you will be able to launch application on client side but with browser it seems difficult until unless you make activex control
but still i am not 100% sure that with activex control you will be able to launch the app or not
So the user installs the Silverlight application to their desktop, could this desktop version be launched based on them visiting a url?
http://somesite.com/url?params
And the silverlight application could inspect the parameters of the url it was launched from?
No, only the user can initiate it becoming an out of browser application.
Not to mention that any application which does this without the user expecting it would probably be classed as a virus or at the very least spamming the machine. Not good for your reputation!