Backspace in kiosk mode not working

[software-driven]

When the kiosk mode is activated, it is quite inconvenient to delete inputs from a text field, since the backspace key does not work. Is it possible to allow this key?

[mattkol]

@software-driven It could be due to this: https://github.com/chromelyapps/Chromely/blob/3cdb28e16182651e7fbec193593c07343e657e85/src/Chromely/NativeHosts/WinHost/WinBase/DefaulKeyboadHookHandler.cs#L82

This part of kiosk mode was contributed by @Soarc and was well tested at the time. If this is the issue, there may be a good reason why it was disallowed, but I do not know if it is a standard for kiosk mode or just specific to what @Soarc was doing at the time.

Meanwhile I will suggest you try remove that and see, by creating a custom keyboard handler using the default implemetation.

    public class DemoApp : ChromelyBasicApp
    {
        public override void ConfigureServices(IServiceCollection services)
        {
            base.ConfigureServices(services);
            services.AddSingleton<IKeyboadHookHandler, CustomKeyboadHookHandler>();

            ----
        }
    }

    public class CustomKeyboadHookHandler : IKeyboadHookHandler
    {
    }

Based on your feedback, we can update the default implementation. If @Soarc respond too, we can use both feedbacks.

[software-driven]

@mattkol thank you for your prompt reply. As suggested, I have created a custom implementation based on the default.

if (key < Keys.Back || instead of if (key <= Keys.Back || fixes the issue with the backspace key.

[Soarc]

If I remember correctly, I added because it, because it was possible to go on initial screen using back button and broke kiosk mode. I'm not sure, if it still case.

[mattkol]

Thanks for the feedback @Soarc. @software-driven please let me know if your fix is still valid based on @Soarc comment.

[MrCircuit]

Hi there

The param of the HandleKey interface is filled in with an object of an internal class of yours (KeyboardParam). Can you change its modifier to public? Otherwise, we can't use the custom keyboard handler at all...

Best regards Uwe

[MrCircuit]

Thanks!