5.2

Table 8-36. View PCoIP Session Variables for the Keyboard
(Continued)
Setting Description
Use alternate key for sending Secure
Attention Sequence
Specifies an alternate key, instead of the Insert key, for sending a Secure
Attention Sequence (SAS).
You can use this setting to preserve the Ctrl+Alt+Ins key sequence in
virtual machines that are launched from inside a View desktop during a
PCoIP session.
For example, a user can launch a vSphere Client from inside a PCoIP
desktop
and open a console on a virtual machine in vCenter Server. If the
Ctrl+Alt+Ins sequence is used inside the guest operating system on the
vCenter Server virtual machine, a Ctrl+Alt+Del SAS is sent to the virtual
machine. This setting allows the Ctrl+Alt+Alternate Key sequence to send
a Ctrl+Alt+Del SAS to the PCoIP desktop.
When this setting is enabled, you must select an alternate key from a drop-
down menu. You cannot enable the setting and leave the value
unspecified.
When this setting is disabled or not configured, the Ctrl+Alt+Ins key
sequence is used as the SAS.
This setting applies to View Agent only and has no effect on a client.
Use enhanced keyboard on Windows
client if available
Determines whether to direct keyboard sequences to be restricted to the
guest operating system in PCoIP desktop sessions.
When you press Ctrl+Alt+Delete, Win+L, or another keyboard sequence,
the guest system only, rather than both guest and host, acts on the
command. For example, pressing Ctrl+Alt+Delete does not lock the host
system.
This setting applies to Windows hosts only.
Before the enhanced keyboard setting can take effect, the VMware
keyboard
filter driver, vmkbd.sys, must be installed and configured. The
VMware keyboard filter driver is automatically installed and configured
on computers that have VMware Workstation, Player, or View Client with
Local Mode installed. You can use this setting only when View Client is
run by a member of the administrator’s group on Windows XP or is run
under elevated privileges by Run as administrator on Windows Vista and
later.
This setting allows the Windows host system to process keyboard input
by an alternative method. It processes raw keyboard input as soon as
possible, bypassing Windows keystroke processing and any malware that
is not already at a lower layer. Use enhanced virtual keyboard if the virtual
machine might be used by someone with an international keyboard or a
keyboard with extra keys.
When this policy is not configured or disabled, the enhanced keyboard
feature is not used.
View PCoIP Build-to-Lossless Feature
The
PCoIP display protocol uses an encoding approach called progressive build, which works to provide the
optimal overall user experience even under constrained network conditions.
Progressive build provides a highly compressed initial image, called a lossy image, that is then progressively
built to a full lossless state. A lossless state means that the image appears with the full fidelity intended.
On a LAN, PCoIP always displays text using lossless compression. If available bandwidth per session drops
below 1Mbs, PCoIP initially displays a lossy text image and rapidly builds the image to a lossless state. This
approach allows the desktop to remain responsive and display the best possible image during varying network
conditions, providing an optimal experience for users.
The build-to-lossless feature provides the following characteristics:
n
Dynamically adjusts image quality
n
Reduces image quality on congested networks
Chapter 8 Configuring Policies
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