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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...s far as I have concluded right now, this does not seem to affect image drawing.
//works with shapes but not with images
ctx.fillStyle = "rgba(255, 255, 255, 0.5)";
I have concluded that setting the globalCompositeOperation works with images.
//works with images
ctx.globalCompositeOperation = ...
Check if a value is in an array (C#)
...ontains("jupiter"))
{
Process.Start("BLAH BLAH CODE TO ADD PRINTER VIA WINDOWS EXEC"");
}
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How to retrieve the LoaderException property?
...
Just an FYI, if you're running a Win Service (like I am), MessageBox will not appear as UI elements are automatically blocked. Rest of implementation was helpful. Just saved to a log file instead. Thanks.
– Vippy
Sep 16...
How to add test coverage to a private constructor?
...I don't entirely agree with Jon Skeet. I think that if you can get an easy win to give you coverage and eliminate the noise in your coverage report, then you should do it. Either tell your coverage tool to ignore the constructor, or put the idealism aside and write the following test and be done wit...
Using scanf() in C++ programs is faster than using cin?
...econds
iostream with sync_with_stdio(false): 5.5 seconds
C++ iostream wins! It turns out that this internal syncing / flushing is what normally slows down iostream i/o. If we're not mixing stdio and iostream, we can turn it off, and then iostream is fastest.
The code: https://gist.github.com...
Character Limit in HTML
...apt to every client's bad HTML implementation, it's an impossible fight to win. That's why it's far better to check it on the server side, with a PHP / Python / whatever script.
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drag drop files into standard html file input
...good in the fiddle, but I don't think I can use it since I need to support Internet Explorer
– nmz787
Apr 2 '15 at 0:13
1
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Python: Get relative path from comparing two absolute paths
... a relative path for path from cwd, if possible"""
if sys.platform == "win32":
cwd = cwd.lower()
path = path.lower()
_cwd = os.path.abspath(cwd).split(os.path.sep)
_path = os.path.abspath(path).split(os.path.sep)
eq_until_pos = None
for i in xrange(min(len(_cwd), ...
Is That REST API Really RPC? Roy Fielding Seems to Think So
... building reusable generic client code that can dynamically use those, allowing many implementations on the server side to reuse the same client code. URI embedding continues to make harder such scenarios, but if you use those formats, you tend to tightly couple a generated client from those specs, ...
Developing cross platform mobile application [closed]
...ers use the WebKit engine (main exception being Windows mobile/phone using Internet Explorer) and even so they don't necessarily support the same functionalities. Local database is still awkward to work with and we can't be sure how it is going to implemented by the different browsers. Moreover, eve...