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25 Feb 10
Hello,
I have implemented this script:
<?php
shell_exec('gnome-web-photo -t 0 --mode=thumbnail -w 512 -s 256 http://www.google.com /tmp/google.jpg');
?>
If I execute it in the shell it runs perfectly, but if I execute it in a browser I view this error: Cannot open display:
Somebody can help me please?
Thank you so much.
25 Feb 10
Sounds like the application is trying to open the X display. Are you trying to get the image to display for someone logged into the server's console or for someone logged into a web site?
25 Feb 10
It looks like the app won't actually print to the screen the way you've invoked it, so maybe you can get away by setting the DISPLAY environment variable first:
<?php
shell_exec('DISPLAY=0:0 gnome-web-photo -t 0 --mode=thumbnail -w 512 -s 256 http://www.google.com /tmp/google.jpg');
?>
25 Feb 10
Thank you for your quickly response.
I have tried your option but the result is the same error.
Best regards.
25 Feb 10
I did a stack trace on gnome-web-photo.
open("/dev/tty", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 3
close(3) = 0
I'm not sure why, but it really wants to open the terminal.
If your goal is just to generate a thumbnail, have you considered using imagemagick's convert?
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