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ON_COMMAND_RANGE 用法 - C/C++ - 清泛网 - 专注C/C++及内核技术
ON_COMMAND_RANGE 用法申明消息宏 + 回调函数模型，其他没什么好解释的。BEGIN_MESSAGE_MAP(CxxDialog, CDialog)
ON_COMMAND_RANGE(IDC_BUTTON_1, IDC_BUTTON_ALL, OnButtonClick)
END_MESSAGE_MAP()
afx_msg void OnButtonClick(UINT nID);ON_COMMAND_RANGE, MFC
Accessing the web page's HTTP Headers in JavaScript
... exactly equal to the current.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);
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Optional Parameters in Go?
...ety of
methods with the same name but
different signatures was occasionally
useful but that it could also be
confusing and fragile in practice.
Matching only by name and requiring
consistency in the types was a major
simplifying decision in Go's type
system.
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How do I pass the value (not the reference) of a JS variable to a function? [duplicate]
...selection(i);
});
})(i);
}
By creating an anonymous function and calling it with the variable as the first argument, you're passing-by-value to the function and creating a closure.
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What is boilerplate code?
...her hand, anyone can say that it's a piece of reusable code.
The term actually came from the steel industries.
For a little bit of history, according to Wikipedia:
In the 1890s, boilerplate was actually cast or stamped in metal ready for the printing press and distributed to newspapers around ...
How to detect if URL has changed after hash in JavaScript
...hange event on window.
In some old browsers, you need a timer that continually checks location.hash. If you're using jQuery, there is a plugin that does exactly that.
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Post data to JsonP
Is it possible to post data to JsonP? Or does all data have to be passed in the querystring as a GET request?
7 Answers
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SQL Server 2008 can't login with newly created user
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SQL Server was not configured to allow mixed authentication.
Here are steps to fix:
Right-click on SQL Server instance at root of Object Explorer, click on Properties
Select Security from the left pane.
Select the SQL Server and Windows Authentication m...
Passing a string with spaces as a function argument in bash
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This works very well for me also. If we are calling another function inside myFunction then pass arguments with quotes. Cheers :)
– minhas23
May 8 '14 at 11:04
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How do I install the OpenSSL libraries on Ubuntu?
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You want to install the development package, which is libssl-dev:
sudo apt-get install libssl-dev
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