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Using HTML5/Canvas/JavaScript to take in-browser screenshots
... "Report a Bug" or "Feedback Tool" lets you select an area of your browser window to create a screenshot that is submitted with your feedback about a bug.
...
How to calculate the SVG Path for an arc (of a circle)
... var d = " M "+ (cx + radius) + " " + cy;
var angle=0;
window.timer = window.setInterval(
function() {
var radians= angle * (Math.PI / 180); // convert degree to radians
var x = cx + Math.cos(radians) * radius;
var y = cy + Math....
Moving default AVD configuration folder (.android)
...HOME and set its value to
E:\Android
Setting the environment variable on Windows XP or Windows 7:
Right-click on My Computer and choose "Properties"
Click the "Advanced" tab
Click the button "Environment Variables".
Add New variable
...
Reload the path in PowerShell
...llation from cmd (requires administrator rights):
@"%SystemRoot%\System32\WindowsPowerShell\v1.0\powershell.exe" -NoProfile -InputFormat None -ExecutionPolicy Bypass -Command "iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))" && SET "PATH=%PATH%;%...
Why does fatal error “LNK1104: cannot open file 'C:\Program.obj'” occur when I compile a C++ project
...Had this problem while trying to build OpenCV using Visual Studio 2005 (on Windows 8.1)...and it solved it. Great!
– AlainD
Nov 7 '14 at 0:28
1
...
How do I make a textbox that only accepts numbers?
I have a windows forms app with a textbox control that I want to only accept integer values. In the past I've done this kind of validation by overloading the KeyPress event and just removing characters which didn't fit the specification. I've looked at the MaskedTextBox control but I'd like a more g...
Using vagrant to run virtual machines with desktop environment
...ualbox do |vb|
vb.gui = true
end
Boot the VM and observe the new display window. Now you just need to install and start xfce4. Use vagrant ssh and:
sudo apt-get install xfce4
sudo startxfce4&
If this is the first time you're running this Ubuntu environment, you'll need to run the following ...
Sublime Text 3, convert spaces to tabs
...
On the bottom right-hand corner of your Sublime Text window, you'll see an indentation indicator that looks a lot like this:
Clicking it will open a menu with options to adjust your indentation preferences, and more importantly, Convert Indentation to Tabs/Spaces.
The sam...
When should one use a 'www' subdomain?
...ial visitor with an unnecessary "site not found" error.
Additionally in a windows only network you might be able to set up a windows DNS server to avoid the following problem, but I don't think you can in a mixed environment of mac and windows. If a mac does a DNS query against a windows DNS mydoma...
How can I determine the current line number in JavaScript?
...
You can try:
window.onerror = handleError;
function handleError(err, url, line){
alert(err + '\n on page: ' + url + '\n on line: ' + line);
}
Then throw an error where you want to know (not overly desired, but it might help you if y...