atl | 易学教程

四种方法结果的比较

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以下是关于整个模拟程序的解释与程序：加载所需要的包，生成所需要的数据：目标分布服从威布尔分布，截断分布服从指数分布。 install . packages ( "rootSolve" ) install . packages ( "Rsolnp" ) library ( Rsolnp ) library ( rootSolve ) ################################################################# ##### define a new log function log_n ### log_n < - function ( z , n ) { an = n ^ 2 ind = ( z < 1 / an ) y1 = log ( 1 / an ) - 1.5 + 2 * an * z - ( an * z ) ^ 2 / 2 y1 [ ! ind ] = 0 z [ ind ] = 1 y2 = log ( z ) y = y1 + y2 return ( y ) } ################################################################################ #### Function used to calculate log ( gamma ( N

VC++、MFC、COM和ATL的区别

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From: http://hi.baidu.com/huqingshuye/blog/item/c55bd12ca5fa1b5b4ec2263f.html 一、什么是MFC 微软基础类(Microsoft Foundation Classes),实际上是微软提供的,用于在C++环境下编写应用程序的一个框架和引擎,VC++是WinOS下开发人员使用的专业C++ SDK(SDK,Standard SoftWare Develop Kit,专业软件开发平台),MFC就是挂在它之上的一个输助软件开发包,MFC作为与VC++血肉相连的部分(注意C++和VC++的区别:C++是一种程序设计语言,是一种大家都承认的软件编制的通用规范,而VC++只是一个编译器,或者说是一种编译器+源程序编辑器的 IDE,WS,PlatForm, MFC同 BC++集成的VCL一样是一个非外挂式的软件包,类库,只不过MFC类是微软为VC++专配的)。MFC是Win API与C++的结合。最后要明白MFC不只是一个功能单纯的界面开发系统,它提供的类绝大部分用来进行界面开发,关联一个窗口的动作,但它提供的类中有好多类不与一个窗口关联,即类的作用不是一个界面类,不实现对一个窗口对象的控制(如创建,销毁),而是一些在WinOS(用MFC编写的程序绝大部分都在WinOS中运行)中实现内部处理的类,如数据库的管理类等。二

How Can i load third party .dll (COM DLL) in ATL Application with WinCE 5.0 RTOS?

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问题 I got the answer and need to understand the following : I have a WinCe 5.0 ATL application. This application is using third party COM dll and 3rd party application(.exe).As per my understanding on WinCE and Dll loading is as following: WinCE: All the dll exported functions should be written in ".Def" file and the dll that need to included during runtime image process should be there in ".bib" file.And one should call DLLExport or loadlibrary (i do not want to go into deep how to use these),

Advising an HTML control: when should I call DispEventUnadvise?

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问题 I use DispEventAdvise in a BHO in order to capture onclick events of a specific checkbox. You can see the code in my previous question (although it's not that relevant). In order to be able to call DispEventUnadvise later, I keep a reference to the IHTMLElement object of the checkbox. When should I call DispEventUnadvise ? Is there a way to know when the checkbox is going away? Is it even legal to keep a reference to the IHTMLElement object? I mean, when the page is destroyed, and there's

Why is my WM_UNICHAR handler never called?

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问题 I have an ATL control that I want to be Unicode-aware. I added a message handler for WM_UNICHAR: MESSAGE_HANDLER( WM_UNICHAR, OnUniChar ) But, for some reason, the OnUniChar handler is never called. According to the documentation, the handler should first be called with "UNICODE_NOCHAR", on which the handler should return TRUE if you want to receive UTF-32 characters. But, as I said, the handler is never called. Is there anything special that needs to be done to activate this? 回答1: What are

How to get ATL support into an existing Windows application

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问题 I'm building an application using Qt 5.3.1 in Visual Studio 2012. I also want to use a hardware library which requires me to add a simple ATL object to the project. This can be done by using a Visual Studio wizard. The wizard complains that my project is neither an MFC executable nor an MFC DLL with full ATL support. My question is: How can I add this support to my application? In the project properties I configured the project to link to the ATL and use the MFC. It did not work. Both

How to get ATL support into an existing Windows application

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When will _ATL_ALLOW_UNSIGNED_CHAR work?

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问题 I'm migrating a Visual C++ project which uses ATL/MFC from VS2010 to VS2013. The project compiles with /J ("assume char is unsigned"), and there is too much code that may or may not rely on that fact to easily remove the compiler flag. Under VS2013, /J causes a compiler error in atldef.h: ATL doesn't support compilation with /J or _CHAR_UNSIGNED flag enabled . This can be suppressed by defining _ATL_ALLOW_UNSIGNED_CHAR . Microsoft mention this in the MSDN documentation for /J, along with the

Can I add MFC support to an Existing ATL COM project

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问题 I have created a Shell Extension using ATL COM Object . But during creation I haven't added MFC support. Can I change the setting now to add MFC support 回答1: Yes, but I believe that doing this won't auto-add all the required headers and #defines - of course, you could try this first, and check to be sure. If that does not work, you could use 'File->New->Project from Existing Code' to create a new project in your solution that uses both MFC and ATL, using the code in your original project. You

Converting _TCHAR* to char*

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问题 I'm trying to get a simple OpenCV sample working in C++ on Windows and my C++ is more than rusty. The sample is fairly simple: #include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <iostream> using namespace cv; using namespace std; int main( int argc, char** argv ) { if( argc != 2) { cout <<" Usage: display_image ImageToLoadAndDisplay" << endl; return -1; } Mat image; image = imread(argv[1], IMREAD_COLOR); // Read the file if(! image.data ) // Check for invalid