nanogui: video pages
Subject:
Re: [nanogui] video pages
From:
Atul Kulkarni ####@####.####
Date:
6 Jun 2006 10:58:41 +0100
Message-Id: <1149591771.3189.24.camel@localhost.localdomain>
Hi,
Just by changing the address it draws correctly to the desired page. But
what happens is that when I switch through the pages one page is always
displaying garbage.
The root window is drawn to one (video) page during initialization (ie
GrOpen) and another window for testing is also drawn on the same page
(with root as parent). I have created another window(with parent as
root) and tried mapping it to another video page, but the window is not
drawn...though the code for the drawing window is executed
(GrMapWindow). Note that I have three windows including root one.
I am expecting to receive two EXPOSURE events one for each newly created
window but I am getting one only...though I have selected it for both
windows.
If I change the sequence in which two windows are mapped always second
window receives the EXPOSURE event.
Will you please help me knowing what could be the reason for this...?
Thanks in advance.
Regards,
Atul K.
On Mon, 2006-06-05 at 14:25 -0600, Greg Haerr wrote:
> : My question is that, will only updating of "scrdev" global variable to
> : adopt to new addr, size and color scheme etc will do the job or some
> : other additional initialization are also needed to happen before it
> : (nano-X) starts using the new video page?
>
>
> If only psd->addr changes, you should be fine. If psd->size
> changes, then there could be a number of issues, including
> recalculating all clip rectangles for the screen, to be considered.
> Generally changing the size of the displayed area isn't currently
> considered by any code, and many changes may be required.
> Same for the color scheme.
>
> Regards,
>
> Greg
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: ####@####.####
> For additional commands, e-mail: ####@####.####
***********************Confidentiality Notice***************************
The information contained in this electronic message and any attachments
to this message are intended for the exclusive use of the addressee(s)
and may contain confidential or privileged information. If you are not
the intended recipient, please notify the sender at Divinet or
####@####.#### immediately and destroy all copies of this
message and any attachments.
************************************************************************
