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How to make an OpenGL rendering context with transparent background?
...Vista and Windows 7 you can achieve quite the same effect as in my x11argb demo below. The PIXELFORMATDESCRIPTOR supports a new flag to enable composition. I've yet to create a demo for this, though. Not going to happen until April, though, when I've got time for that again.
– ...
C++, What does the colon after a constructor mean? [duplicate]
...here I want to initialise m_val based on the constructor parameter:
class Demo
{
Demo(int& val)
{
m_val = val;
}
private:
const int& m_val;
};
By the C++ specification, this is illegal. We cannot change the value of a const variable in the constructor, because ...
Count characters in textarea
...solution:
<textarea maxlength='140'></textarea>
JavaScript (demo):
const textarea = document.querySelector("textarea");
textarea.addEventListener("input", event => {
const target = event.currentTarget;
const maxLength = target.getAttribute("maxlength");
const currentL...
How to detect Safari, Chrome, IE, Firefox and Opera browser?
...instructions to install an extension. Use feature detection when possible.
Demo: https://jsfiddle.net/6spj1059/
// Opera 8.0+
var isOpera = (!!window.opr && !!opr.addons) || !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
// Firefox 1.0+
var isFirefox = typeof InstallTri...
Can I have an onclick effect in CSS?
...a true click event, which fires an action on - typically - mouseUp.
Basic demo of the checkbox hack (the basic code structure for what you're asking):
label {
display: block;
background: lightgrey;
width: 100px;
height: 100px;
}
#demo:checked + label {
background: blue;
...
jQuery autocomplete tagging plug-in like StackOverflow's input tags? [closed]
...
In order of activity, demos/examples available, and simplicity:
(demo) https://github.com/yairEO/tagify
(demo) https://github.com/aehlke/tag-it
(demo) http://ioncache.github.com/Tag-Handler/
(demo) http://textextjs.com/
(demo) https://github.com...
How can I color Python logging output?
...e:
$ pip install coloredlogs
To confirm that it works:
$ coloredlogs --demo
To get started with your own code:
$ python
> import coloredlogs, logging
> coloredlogs.install()
> logging.info("It works!")
2014-07-30 21:21:26 peter-macbook root[7471] INFO It works!
The default log form...
What is cURL in PHP?
... the curl session we have created.
step5: Output the return string.
Make DEMO :
You will need to create two PHP files and place them into a folder that your web server can serve PHP files from. In my case I put them into /var/www/ for simplicity.
1. helloservice.php and 2. demo.php
helloservic...
How to compare times in Python?
....replace(hour=hr, minute=min, second=sec, microsecond=micros)
# Usage demo1:
print todayAt (17), todayAt (17, 15)
# Usage demo2:
timeNow = datetime.datetime.now()
if timeNow < todayAt (13):
print "Too Early"
...
Why doesn't CSS ellipsis work in table cell?
Consider the following example: ( live demo here )
11 Answers
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