Disable grabbing alt+tab in Citrix

Question

(I used to use NX client, which does not grab Alt + Tab, so with NX I could to switch windows with Alt + Tab on my host OS only, which is prefered for me.)

I had to switch Citrix, which grabs this (alt-tab) keys (only in fullscreen mode) so if Citrix is active I cannot switch to any other host window (using keys), which is not preferred for me.

I want to switch windows with Alt + Tab on my host OS only.

My Citrix host is Win7, guest is a RH6. Version is 4.9

Answer 1

Symptoms or Error

Executing ALT+TAB keys toggles opened applications on endpoint machine instead of desktop session

Solution

Launch Regedit.exe on the client device to edit the registry

For Windows 32-bit OS, navigate to the key

HKEY_LOCAL_MACHINE \SOFTWARE\Citrix\ICAClient\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Keyboard\

For Windows 64-bit OS, navigate to the key

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Keyboard\

In some cases configuring User based Setting also helps:

HKEY_CURRENT_USER\SOFTWARE\Citrix\ICAClient\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Keyboard\

Value Name    TransparentKeyPassthrough
Value Type    REG_SZ
Value         Remote

The Value "Remote" will enable it and blank will disable it

Answer 2

This made Alt-Tab switch consistently on the host, for me:

(both in Window mode and Full-screen mode)

In registry, within:

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Citrix\ICA Client\Engine\Lockdown Profiles\All Regions\Lockdown\Virtual Channels\Keyboard

I changed:

TransparentKeyPassthrough = Local

(was empty)

Win10, 64-bit, Citrix Workspace 19.3.0.4