UWP JavaScript APP: run win32 EXE with parameters

Question

What is the best working way to call a win32 executable from JavaScript UWP app (Windows Anniversary update)

I have tried to configure the win32 via an AppService:

<uap:Extension Category="windows.appService" StartPage="www\index.html">
    <uap:AppService Name="CommunicationService" />
</uap:Extension>

<desktop:Extension Category="windows.fullTrustProcess" Executable="mywin32app.exe" EntryPoint="Windows.FullTrustApplication" />

Now I can launch it with Windows.ApplicationModel.FullTrustProcessLauncher.launchFullTrustProcessForCurrentAppAsync() from JavaScript, but how do I launch It with parameters?

Did you every find a way to do this? I agree with you, the Parameter groups are useless as you cant pass runtime args — mikeysee
– mikeysee, Commented Oct 16, 2016 at 8:08

Elvis Xia - MSFT · Accepted Answer · 2016-09-15 04:53:56Z

1

but how do I launch It with parameters

There is a with-parameter version of this method that you can use: FullTrustProcessLauncher.LaunchFullTrustProcessForCurrentAppAsync(String).

And declear the parameters in appxmanifest file:

<desktop:Extension Category="windows.fullTrustProcess" Executable="fulltrustprocess.exe"> 
      <desktop:FullTrustProcess> 
        <desktop:ParameterGroup GroupId="SyncGroup" Parameters="/Sync"/> 
        <desktop:ParameterGroup GroupId="OtherGroup" Parameters="/Other"/> 
      </desktop:FullTrustProcess> 
</desktop:Extension>

edited Sep 15, 2016 at 4:53

answered Sep 15, 2016 at 3:36

Elvis Xia - MSFT

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6 Comments

Daniel Toplak Over a year ago

But it looks like the parameters could only be defined in the manifest, right? So how do I use dynamic parameters for the call?

Elvis Xia - MSFT Over a year ago

Yes, the parameters could only be defined in the manifest and GroupId be passed as the argument to the method. I'm out of ideas of other options to pass the parameters.

Daniel Toplak Over a year ago

Hm but this is useless. There should be a way do define the parameters during runtime.

Elvis Xia - MSFT Over a year ago

You can define all parameters in appmanifest, and during runtime change the GroupId dynamically to decide which parameter to use.

Elvis Xia - MSFT Over a year ago

Also you are welcomed to deliver Feature Request Feedback through Windows Feedback App to help us improve our work.

|

Hannes Nel · Accepted Answer · 2018-04-07 22:58:19Z

0

The provided mechanism for passing parameters doesn't seem to allow you to do them dynamically at the moment, which is not ideal. You can only pass through hard-coded parameters to your process. I suggest using an App Service extension in your UWP app to make data available to your full trust process. The process is documented here.

Do it this way:

Launch full trust process. Add a parameter to indicate that it is launched from UWP.

In your full trust process, check if the parameter was passed in, and call back to the UWP process' app service task to get the data you would otherwise pass in as a parameter.

answered Apr 7, 2018 at 22:58

Hannes Nel

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