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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
What is an application binary interface (ABI)?
... an API. The API consists of data types/structures, constants, functions, etc that you can use in your code to access the functionality of that external component.
An ABI is very similar. Think of it as the compiled version of an API (or as an API on the machine-language level). When you write s...
How to join components of a path when you are constructing a URL in Python
...oining URLs. It it for resolving relative URLs as found in HTML documents, etc.
– OrangeDog
Aug 15 '16 at 10:27
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If Python is interpreted, what are .pyc files?
...eral places, thumbed through looking for given chapter-and-verse pointers, etc, etc, and a good hardcover binding can make a given copy last longer under such use. However, these are mundane (practical) issues that cannot be used to determine whether a given actual book object is a copy of the Bibl...
Why shouldn't I use mysql_* functions in PHP?
... {
$stmt = $db->query("SELECT * FROM table");
return $stmt->fetchAll(PDO::FETCH_ASSOC);
}
//Then later
try {
data_fun($db);
}
catch(PDOException $ex) {
//Here you can handle error and show message/perform action you want.
}
Also, you can handle by or die() or we can say like...
using jquery $.ajax to call a PHP function
...e 'test' : test();break;
case 'blah' : blah();break;
// ...etc...
}
}
I believe that's a simple incarnation of the Command pattern.
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C++模板-继承-具现化 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++模板-继承-具现化今天在学习effective c++中的第49个条款时，遇到一个模板继承的方法，让我打开眼界，感慨万千啊！具体的代码如下：class NewHandlerHolde 今天在学习effective c++中的第49个条款时，遇到一个模板继承的方法，让我...
MFC MDI切换menu原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
MFC MDI切换menu原理当应用程序向导生成的SDI或MDI应用程序时，它创建了菜单资源（使用IDR_MAINFRAME作为其资源id。此菜单显示在所有时间SDI应用程序，并且仅在...当应用程序向导生成的 SDI 或 MDI 应用程序时，它创建了菜单资源 （...
XP风格按钮的实现 - C/C++ - 清泛网 - 专注C/C++及内核技术
XP风格按钮的实现方法一：利用XPButton类实现具体操作步骤如下：1.从互联网上下载XPButton类；2.创建基于对话框的MFC工程Test,将下载的XPButton.cpp和XPButt...方法一：利用XPButton类实现
具体操作步骤如下：
1.网上下载XPButton类；请参...
VC CTreeCtrl复选框checkbox的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
VC CTreeCtrl复选框checkbox的使用方法1. 消息事件 (1)鼠标点击当前ITEM的CHECKBOX：引发NM_CLICK事件并传递TVHT_ONITEMSTATEICON。 (2)鼠标点击当前ITEM的TEXT：引发NM_CLICK...1. 消息事件
(1)鼠标点击当前ITEM的CHECKBOX：引发NM_CLICK事件并传递TVHT_ONITEM...