Smart Technologies Smart Bridgit 4.5 - Manual (Page 63)

SMART Bridgit software uses the following three types of technology to share screens during a
meeting.
Type of
technology
Description
Mirror
drivers
SMART Bridgit software attempts to use this sharing method first because it offers the
best performance. It requires an installation which is automatically done if you have
administrator rights.
N
N O T E
Mirror drivers behave unexpectedly on computers with Windows 7 operating
systems.
Redraw
hooks
SMART Bridgit software reverts to using redraw hooks if it can't use mirror drivers.
Redraw hooks are automatically downloaded from the server when needed and
performs a screen capture every time something changes on the screen.
N
N O T E
Redraw hooks behave unexpectedly on computers with Windows 7 operating
systems.
Four times
per second
capture
If SMART Bridgit software can't use either of the above technologies, it captures the
shared screen four times per second, compresses the image, and then sends it to the
recipient. This method offers the lowest performance, but it uses the lowest
bandwidth.
Information fields and options
Use the options outlined in this section to resolve issues with sharing speed and image quality.
Field/option Description When to use/why it’s important
Presenting status Displays either Not
currently presenting or
the method of screen
capture in use:
l
Capturing screen 4
times per second
(display 0)
l
Using
RedrawHooks.dll
(display 0)
l
Using mirror driver
(display 0)
A P P E N D I X A
Troubleshooting
59