大约有 15,500 项符合查询结果（耗时：0.0223秒） [XML]
WPF Databinding: How do I access the “parent” data context?
I have a list (see below) contained in a window. The window's DataContext has two properties, Items and AllowItemCommand .
...
Disabling Chrome cache for website development
...
1
2
Next
1992
...
How can I use a DLL file from Python?
...
For ease of use, ctypes is the way to go.
The following example of ctypes is from actual code I've written (in Python 2.5). This has been, by far, the easiest way I've found for doing what you ask.
import ctypes
# Load DLL into memory.
hllDll = ctypes.WinDLL ("c:\\PComm\\ehlapi...
How are Anonymous inner classes used in Java?
... class can come useful when making an instance of an object with certain "extras" such as overriding methods, without having to actually subclass a class.
I tend to use it as a shortcut for attaching an event listener:
button.addActionListener(new ActionListener() {
@Override
public void a...
how do I use UIScrollView in Interface Builder?
... programmatically, I'm having trouble getting it to work by setting it up exclusively in Interface Builder.
17 Answers
...
How is an HTTP POST request made in node.js?
...
Here's an example of using node.js to make a POST request to the Google Compiler API:
// We need this to build our post string
var querystring = require('querystring');
var http = require('http');
var fs = require('fs');
function Post...
iOS Detection of Screenshot?
...hare pictures with a self-destruct on them. You can only view the pics for X seconds. If you attempt to take a screenshot while the picture is showing using the home-power key combo, it will tell the sender you tried to take a screenshot.
...
How to listen for a WebView finishing loading a URL?
...
Extend WebViewClient and call onPageFinished() as follows:
mWebView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
// do your stuff here
}
});
...
Catch Ctrl-C in C
...
With a signal handler.
Here is a simple example flipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIGINT, intHandler);
while ...
How to see top processes sorted by actual memory usage?
... this mantra for a little while: "unused memory is wasted memory". The Linux kernel keeps around huge amounts of file metadata and files that were requested, until something that looks more important pushes that data out. It's why you can run:
find /home -type f -name '*.mp3'
find /home -type f -na...