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convert UIImage to NSData
...{
UIImage *snapshot = self.myImageView.image;
[self encodeImageToBase64String:snapshot];
}
call this method for image convert in base 64
-(NSString *)encodeImageToBase64String:(UIImage *)image
{
return [UIImagePNGRepresentation(image) base64EncodedStringWithOptions:N...
List of Delphi language features and version in which they were introduced/deprecated
...form (but without additional text for deprecated)
Variant is no longer based on COM but changed to be CLX compatible, COM based variant renamed to OLEVariant
Typed constants cannot be assigned to (Override with {$J+})
Enumerated types can be assigned an explicit value (cf C++);
Interface pr...
I need to securely store a username and password in Python, what are my options?
...s
from pbkdf2 import PBKDF2
from Crypto.Cipher import AES
import os
import base64
import pickle
### Settings ###
saltSeed = 'mkhgts465wef4fwtdd' # MAKE THIS YOUR OWN RANDOM STRING
PASSPHRASE_FILE = './secret.p'
SECRETSDB_FILE = './secrets'
PASSPHRASE_SIZE = 64 # 512-bit passphrase
KEY_SIZE = 32 ...
Smallest data URI image possible for a transparent image
...ds (in some browsers).
Shorter (but unstable - 74 bytes)
data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==
I would advise using the slightly longer and more stable version as follows:
⇊ Stable ⇊ (but slightly longer - 78 bytes)
data:image/gif;base64,R0lGODlhAQABAI...
Install a Windows service using a Windows command prompt?
... answered Jul 26 '12 at 0:29
Base33Base33
2,80122 gold badges2323 silver badges2828 bronze badges
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Pandas DataFrame column to list [duplicate]
I am pulling a subset of data from a column based on conditions in another column being met.
4 Answers
...
How to set custom favicon in Express?
... improve performance by skipping disk access.
This module provides an ETag based on the contents of the icon, rather than file system properties.
This module will serve with the most compatible Content-Type.
share
...
OS detecting makefile
... Make treats unset the same as empty, which will cause a jump to the uname-based block. You just need to add a FreeBSD check there.
– Trevor Robinson
Oct 2 '15 at 16:53
3
...
Installing SciPy with pip
...
Prerequisite:
sudo apt-get install build-essential gfortran libatlas-base-dev python-pip python-dev
sudo pip install --upgrade pip
Actual packages:
sudo pip install numpy
sudo pip install scipy
Optional packages:
sudo pip install matplotlib OR sudo apt-get install python-matplotlib
su...
Convert Data URI to File then append to FormData
...ert a dataURI to a Blob:
function dataURItoBlob(dataURI) {
// convert base64/URLEncoded data component to raw binary data held in a string
var byteString;
if (dataURI.split(',')[0].indexOf('base64') >= 0)
byteString = atob(dataURI.split(',')[1]);
else
byteString =...