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What is the difference between user and kernel modes in operating systems?
...e the state and returns to user mode.
http://en.wikibooks.org/wiki/Windows_Programming/User_Mode_vs_Kernel_Mode
http://tldp.org/HOWTO/KernelAnalysis-HOWTO-3.html
http://en.wikipedia.org/wiki/Direct_memory_access
http://en.wikipedia.org/wiki/Interrupt_request
...
How to intercept touches events on a MKMapView or UIWebView objects?
...izer(target: nil, action: nil)
tapInterceptor.touchesBeganCallback = {
_, _ in
self.lockedOnUserLocation = false
}
mapView.addGestureRecognizer(tapInterceptor)
WildCardGestureRecognizer.swift
import UIKit.UIGestureRecognizerSubclass
class WildCardGestureRecognizer: UIGestureRecognizer {
...
Why can't I see the “Report Data” window when creating reports?
...wered Dec 6 '11 at 19:31
matthew_360matthew_360
5,46366 gold badges2626 silver badges3939 bronze badges
...
Variable number of arguments in C++?
...number of arguments in C you include stdarg.h. From that you'll get the va_list type as well as three functions that operate on it called va_start(), va_arg() and va_end().
#include<stdarg.h>
int maxof(int n_args, ...)
{
va_list ap;
va_start(ap, n_args);
int max = va_arg(ap, int...
iOS - Dismiss keyboard when touching outside of UITextField
...TapGestureRecognizer(target: self, action: #selector(self.dismissKeyboard (_:)))
self.view.addGestureRecognizer(tapGesture)
For dismissKeyboard
@objc func dismissKeyboard (_ sender: UITapGestureRecognizer) {
aTextField.resignFirstResponder()
}
...
Install tkinter for Python
...: No module named 'tkinter' I Use(Python 3.7.5)
– sqp_125
Dec 9 '19 at 18:30
Solution: sudo apt-get install python3.7-...
What does Redis do when it runs out of memory?
...wered Nov 27 '14 at 14:41
daniel__daniel__
10.3k1414 gold badges5858 silver badges9090 bronze badges
...
No route matches [GET] /assets
...ils app that I'm trying to test in the production environment. I ran RAILS_ENV=production rake assets:precompile which generated all of my assets in /public/assets. The problem is that when I start my app w/ RAILS_ENV=production rails s thin I get:
...
How is the undo tree used in Vim?
... Can you merge branches? (I'm kidding)
– he_the_great
Feb 9 '10 at 19:54
40
Kinda of. L...
in_array() and multidimensional array
I use in_array() to check whether a value exists in an array like below,
22 Answers
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