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CDHtmlDialog的基本使用（C++调用JS函数的实现） - C/C++ - 清泛网 - 专注C/C++及内核技术
...T CallJSFunction(IHTMLDocument2* pDoc2,
CString strFunctionName,
DISPPARAMS dispParams,
VARIANT* varResult,
EXCEPINFO* exceptInfo,
UINT* nArgErr );
public:
afx_msg void OnBnClickedButton1();
JSCppInteractiveDlg.cpp末尾添加如下代码：
void CJSCppInteractiveDlg::OnBnClick...
HTML5 Canvas Resize (Downscale) Image High Quality?
... - fast image resize/resample using Hermite filter. 1 cpu version!
*
* @param {HtmlElement} canvas
* @param {int} width
* @param {int} height
* @param {boolean} resize_canvas if true, canvas will be resized. Optional.
*/
function resample_single(canvas, width, height, resize_canvas) {
var...
C++ preprocessor __VA_ARGS__ number of arguments
...
I usually use this macro to find a number of params:
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/sizeof(int))
Full example:
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#define NUMARGS(...) (sizeof((int[]){__VA_ARGS__})/size...
How do I get the current absolute URL in Ruby on Rails?
...ApplicationController to return the current URL and allow merging in other parameters
# https://x.com/y/1?page=1
# + current_url( :page => 3 )
# = https://x.com/y/1?page=3
def current_url(overwrite={})
url_for :only_path => false, :params => params.merge(overwrite)
end
Example Usage...
How to pass object with NSNotificationCenter
... @Kairos because it isn't designed to use like this. the object param in postNotificationName should meaning the one which send this notification.
– xi.lin
Jul 9 '15 at 3:49
...
Fastest way to flatten / un-flatten nested JSON objects
..., {f: 1}]}}]})
* // return {a: 1}
* flatten({a: 1, b: [], c: {}})
*
* @param obj item to be flattened
* @param {Array.string} [prefix=[]] chain of prefix joined with a dot and prepended to key
* @param {Object} [current={}] result of flatten during the recursion
*
* @see https://docs.mongodb...
How to get the return value from a thread in python?
...g this can be done with a list of threads. futures = [executor.submit(foo, param) for param in param_list] The order will be maintained, and exiting the with will allow result collection. [f.result() for f in futures]
– jayreed1
Jun 4 at 21:29...
Execute raw SQL using Doctrine 2
...color
$sql = "SELECT name FROM user WHERE favorite_color = :color";
//set parameters
//you may set as many parameters as you have on your query
$params['color'] = blue;
//create the prepared statement, by getting the doctrine connection
$stmt = $this->entityManager->getConnection()->pre...
Can a C# lambda expression have more than one statement?
...nt calculation = (i*x);
(string info, int result) InternalTuppleMethod(param1, param2)
{
var sum = (calculation + 5);
return ("The calculation is", sum);
}
}
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imp...
“Notice: Undefined variable”, “Notice: Undefined index”, and “Notice: Undefined offset” using PHP
...r to »hide« undefined variable/index messages.
$var = @($_GET["optional_param"]);
This is usually discouraged. Newcomers tend to way overuse it.
It's very inappropriate for code deep within the application logic (ignoring undeclared variables where you shouldn't), e.g. for function parameters,...