Re: Portrait and Landscape in .Net 4.2 ?

From: Valter Minute (vminute_at_REMOVEMEinwind.it)
Date: 06/29/04 

Date: Tue, 29 Jun 2004 02:24:32 -0700

Yu.Mails@msa.hinet.net (Yu) wrote in
news:28933d82.0406290041.18ddedd6@posting.google.com:

[...]
> I don't want to use HW(VGA chip) to rotate the OS display because
> our HW does not support it.
> May I use S/W(display driver) to change the OS display to Portrait
> and Landscape dynamically in .Net 4.2?
>

If your hardware is VGA compatible you could use the VGA driver with
rotation support.
If you're working on a custom device you should change the display
driver and add rotation support to it. If your driver is based on GPE
this means deriving your driver class from GPERotate instead of GPE.
I think that rotation support will impact on performances.
If you use a touch screen you'll have to check if the touch driver
support rotation (it should exchange x and y point coordinates), and if
it doesn't, you've to change it (if you have got the source code) or
"wrap" it with a driver that loads the original driver and converts the
cordinates returned to GWES. 

-- 
Valter Minute
vminute@inwind.it (the reply address of this message is invalid)

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