[wxPython-users] Passing Images

[Rod]

Hi,

I would like to thank everyone for their advice, it now works fine. Also I =
switched to the media control rather than using images and the application =
is now much faster.

Kind regards,

rod

----- Original Message ----
From: Chris Mellon <arkanes at gmail.com>
To: wxPython-users at lists.wxwidgets.org
Sent: Tuesday, 4 September, 2007 5:20:59 PM
Subject: Re: [wxPython-users] Passing Images

On 9/4/07, Rod <userprogoogle-139 at yahoo.co.uk> wrote:
> Hi,
>
> Sorry if this seems like a silly question. I am returning to wxPython aft=
er
> a long break!
>
> I am in the process of writing a small application, or rather sets of
> classes which I plan to use for grabbing webcam images. I am able to grab
> the webcam image without any problem then from that create a TIFF image
> which is subsequently saved to a file. However I also want this image to =
be
> displayed in a window/frame. At present the program grabs the image again
> from the saved file and displays this in a window. However I suspect this=
 is
> causing some serious slow down, especially after a few minutes for some
> reason.

This is certainly slower, but isn't likely to cause the symptom you're
seeing, so I suggest looking longer.

>However I have tried passing the TIFF object to the image in the
> window using events and other means but I always get an error saying that
> wx.Image expects a strong or unicode character. Is there a way to pass
> TIFF's or other formats directly without the need to go via file I/O?  I =
am
> using the standard wx.Image class to create and display images on a panel.
>

Assuming that your webcam library retrieves the TIFF object for you as
a Python string object:

img =3D wx.ImageFromStream(cStringIO.StringIO(tiffdata), wx.BITMAP_TYPE_TIF)

---------------------------------------------------------------------
To unsubscribe, e-mail: wxPython-users-unsubscribe at lists.wxwidgets.org
For additional commands, e-mail: wxPython-users-help at lists.wxwidgets.org





-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.wxwidgets.org/pipermail/wxpython-users/attachments/200709=
04/a50f1798/attachment.htm