The Screen subsection includes settings for screen capture preferences. The Account User can click on the Edit button to view and/or edit any of these configuration options.
Below is a table of the fields, values and actions available on the Screen popup window:
Field
Description
Allow use of kernel-mode screen capture …
Allow the kernel-mode mirror display driver to be attached if kernel-mode screen capture is requested by Master or Gateway Server
Note: When kernel-mode mirror display driver is in use, Aero Glass effects will be disabled in desktops of machines running Windows Vista or later
Note: Kernel-mode mirror display driver will require local or system Administrator rights and reboot to install
Attach kernel-mode mirror display driver at Host startup…
Ensure that the mirror driver is pre-loaded at startup time, eliminating the need to attach/detach with each Master connection to the Host
Prefer kernel-mode screen capture
Use kernel-mode screen capture driver for capturing the Host desktop; will require Aero Glass effects to be disabled
Prefer user-mode screen capture
Use user-mode screen capture driver for capturing the Host desktop; will not require Aero Glass effects to be disabled
Current user-mode screen capture profile
Displays the user-mode screen capture profile currently in effect
See Host Operation > Screen tab > Bandwidth Throttling in the PC-Duo Host Guide for more information about user-mode screen capture profiles
High Quality/ High Bandwidth
Highest image quality; unlimited bandwidth
Medium
Medium image quality; bandwidth limited to 100 Kbyte/sec
Medium-Low
Medium-low image quality; bandwidth limited to 60 Kbyte/sec
Low
Low image quality; bandwidth limited to 30 Kbyte/sec
Custom
User-defined settings for image quality, bandwidth and other parameters
Configure…
Specify custom settings for image quality, bandwidth and other parameters of user-mode screen capture
Actions
Actions that can be taken on this popup window
Apply Changes
Save changes and close the popup window
Cancel
Discard changes and close the popup window
When user-mode screen capture is selected, the amount of bandwidth used to capture and transmit the Host desktop to the Account User(s) can be restricted or "throttled" by configuring and applying a user-mode screen capture profile. The default profile is "High Quality/High Bandwidth" but other profiles corresponding to smaller bandwidth limits are available. See Host Operation > Screen > Bandwidth Throttling section of the PC-Duo Host Guide for more information about configuring user-mode screen capture profile properties.
