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wkhtmltopdf: cannot connect to X server
...ssl-dev
Check to see if it works: run
/usr/local/bin/wkhtmltopdf http://www.google.com test.pdf
If it works, then you are done. If you get the error "Cannot connect to X server" then continue to number 7.
We need to run it headless on a 'virtual' x server. We will do this with a package called ...
Resize image in PHP
...imon Jarvis
* Copyright: 2006 Simon Jarvis
* Date: 08/11/06
* Link: http://www.white-hat-web-design.co.uk/blog/resizing-images-with-php/
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software...
How to send an email from JavaScript
...uthorization. The API Keys are not exposed to client.
node.js - https://www.npmjs.org/package/node-mandrill
var mandrill = require('node-mandrill')('<your API Key>');
function sendEmail ( _name, _email, _subject, _message) {
mandrill('/messages/send', {
message: {
...
How to create a listbox in HTML without allowing multiple selection?
... the number of elements you want
you may want to check this site
http://www.htmlcodetutorial.com/forms/_SELECT.html
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Export CSS changes from inspector (webkit, firebug, etc)
...is product on SO before (I'm not affiliated with them in any way).
http://www.skybound.ca/
Excellent product. Sounds like exactly what you're looking for and much more.
EDIT: Several other answers here have mentioned Google Chrome's ability to link to your local files (which is very very cool). C...
EJB's - when to use Remote and/or local interfaces?
...e carried out with
direct method calls, instead of RMI.
Source: http://www.onjava.com/pub/a/onjava/2004/11/03/localremote.html?page=last&x-showcontent=text
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Make Iframe to fit 100% of container's remaining height
... out:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style>
*{margin:0;padding:0}
html, body {height:100%;width:100%;overflow:hidden}
ta...
What exactly does stringstream do?
...m trying to learn C++ since yesterday and I am using this document: http://www.cplusplus.com/files/tutorial.pdf (page 32) . I found a code in the document and I ran it. I tried inputting Rs 5.5 for price and an integer for quantity and the output was 0.
I tried inputting 5.5 and 6 and the output wa...
Is there a naming convention for MySQL?
...g-style.html
Most common codingstyle for MySQL by Simon Holywell:
http://www.sqlstyle.guide/
See also this question:
Are there any published coding style guidelines for SQL?
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Why does Dijkstra's algorithm use decrease-key?
...between using the decrease-key version and the insert version. See http://www.cs.utexas.edu/users/shaikat/papers/TR-07-54.pdf
Their basic conclusion was not to use the decrease-key for most graphs. Especially for sparse graphs, the non-decrease key is significantly faster than the decrease-key ve...