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Qt 5.1.1: Application failed to start because platform plugin “windows” is missing
...ows". Available platforms are: windows" error.
I had copied qwindows.dll from C:\Qt\Qt5.1.1\Tools\QtCreator\bin\plugins\platforms, which is not the right location. I looked at the debug log from running in Qt Creator and found that my app was looking in C:\Qt\Qt5.1.1\5.1.1\mingw48_32\plugins\plat...
Get a pixel from HTML Canvas?
....getElementById('myCanvas').getContext('2d');
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.getImageData(x, y, width, height);
var pix = imgd.data;
// Loop over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[...
PHP function to build query string from array
I'm looking for the name of the PHP function to build a query string from an array of key value pairs. Please note, I am looking for the built in PHP function to do this, not a homebrew one (that's all a google search seems to return). There is one, I just can't remember its name or find it on php...
ssh remote host identification has changed
...
ssh-keygen -R <host>
For example,
ssh-keygen -R 192.168.3.10
From ssh-keygen man page:
-R hostname Removes all keys belonging to hostname from a known_hosts file. This option is useful to delete hashed hosts (see the -H option above).
...
nodejs how to read keystrokes from stdin
...
For those finding this answer since this capability was stripped from tty, here's how to get a raw character stream from stdin:
var stdin = process.stdin;
// without this, we would only get streams once enter is pressed
stdin.setRawMode( true );
// resume stdin in the parent process (no...
How can I do a line break (line continuation) in Python?
...== True and \
b == False
Check the style guide for more information.
From your example line:
a = '1' + '2' + '3' + \
'4' + '5'
Or:
a = ('1' + '2' + '3' +
'4' + '5')
Note that the style guide says that using the implicit continuation with parentheses is preferred, but in this part...
Creating SolidColorBrush from hex color value
I want to create SolidColorBrush from Hex value such as #ffaacc. How can I do this?
6 Answers
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How to upload a file to directory in S3 bucket using boto
...
Try this...
import boto
import boto.s3
import sys
from boto.s3.key import Key
AWS_ACCESS_KEY_ID = ''
AWS_SECRET_ACCESS_KEY = ''
bucket_name = AWS_ACCESS_KEY_ID.lower() + '-dump'
conn = boto.connect_s3(AWS_ACCESS_KEY_ID,
AWS_SECRET_ACCESS_KEY)
bucket = conn.create...
Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
11
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Play audio from a stream using C#
Is there a way in C# to play audio (for example, MP3) direcly from a System.IO.Stream that for instance was returend from a WebRequest without saving the data temporarily to the disk?
...