Keyboard Filter (Standard 8)

7/8/2014

Review the use, syntax, options, and parameters for the Embedded Lockdown Manager (ELM) Keyboard Filter in Windows Embedded 8 Standard (Standard 8).

You can configure Keyboard Filter on a Windows Embedded 8 Standard (Standard 8) device to suppress undesirable key presses or key combinations. Normally, a user can use certain Windows key combinations like Ctrl+Alt+Delete or Ctrl+Shift+Tab to alter the operation of a device by locking the screen or using task manager to close a running application. This may not be desirable if your device is intended for a dedicated purpose. However, you can use Keyboard Filter to suppress any key press or key combination that causes an undesirable system behavior.

Keyboard Filter works with both physical keyboards and the standard Windows touchscreen keyboards.

On this screen, you can use the following commands:

Disable admin filter/Enable admin filter

Disables or enables the Keyboard Filter from blocking keys for administrator accounts on the device.

Allow Accessibility/Force off Accessibility

Determines whether accessibility features that can bypass the Keyboard Filter are allowed.

Key combinations are grouped into the following categories:

Category

Description

Accessibility Keys

Predefined Keys that affect accessibility options.

Application Keys

Predefined keys that affect application behavior.

Browser Keys

Predefined keys that affect internet browser functionality.

Extended Shell Keys

Predefined keys that initiate commonly used functionality, such as launch mail, launch media player, or sleep mode.

Media Keys

Predefined keys that access media player functionality.

Modifier Keys

Predefined keys that are commonly used as modifiers in a key combination.

Security Keys

Predefined keys that affect system security, such as Ctrl+Alt+Delete.

Shell Keys

Predefined keys that affect the behavior of the Windows shell.

All Keys

All predefined keys.

Custom Keys

Custom-defined keys.

Custom Scan Codes

Custom-defined scan codes.

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