virtual display driver for USB Monitor
virtual display driver for USB Monitor
- Subject: virtual display driver for USB Monitor
- From: selvaganesan <email@hidden>
- Date: Wed, 14 Feb 2007 14:15:54 +0530
Dear all,
I would like to write a program that uses the USB
interface display monitor as an extended display, not a mirror.
In order to achieve this, i need to write a driver that tells OS X
that a secondary display device is connected to the machine as the way
OS X is currently supporting extended display through ADC port. That
driver then will collect the drawing commands that are sent to it by
the OS and pipe them through a USB in my case. Is it possible?
To the OS, this all must look just like a regular display device which
is connected virtually into OS through my driver (virtual display card
driver).
Basically OS X is increasing the desktop screen space when the
secondary display device is connected as an extended display.
How it is increasing the Desktop screen space to support the extended display?
What IOFrameBuffer is doing when extended display is supported?
Is there any relation between IOFrameBuffer and extended
display?(there must be i guess)
Is there any Hardware related dependency in increasing desktop screen
space to support the extended display? (Is it graphics card depedent?)
I am not aware of all these things. I can move ahead if these things
get clear by this mailing list.
Thanx in advance,
selvaganesan.
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