Some knowledge about why we need to new and delete everything in one module

Essence: Wrap functions to read/write things from another module. Windows keep seperate heaps for debug and release - built DLLs and EXEs. So for example, calling a release DLL from a debug application EXE,  any memory we allocate needs to be

二進位檔案和文字檔

一句話總結:所有各種檔案格式(文本,exe,視頻,圖片),物理上來看,都是二進位檔案;邏輯上來講,由於各自的編碼方式不同,加上文字檔的曆史悠遠,就出現了除了文字檔,其他都統一叫做二進位檔案。同理不同話:"二進位檔案"本來就是一種似是而非的叫法。我們知道,存在有種類繁多的不同類型(格式)的檔案,如文字檔,視頻檔案,影像檔,資料庫檔案....,檔案格式的具體定義取決於應用。不同的檔案格式的主要差別之一就是資訊的編碼不同,而編碼總歸都是"二進位"的,從這個方面看,所有的都是"二進位檔案"。而我們常講的

TCHAR之於Microsoft

From MSDN:To simplify code development for various international markets, the Microsoft run-time library (CRT) provides Microsoft-specific "generic-text" mappings for many data types, routines, and other objects. These mappings are defined in

MS Known Issue: About Passing STL object pointer/reference in different modules

You may experience an access violation when you access an STL object through a pointer or reference in a different DLL or EXE.[http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b172396]On This Page    * SYMPTOMS    * CAUSE    * RESOLUTION   

VS Solution Basis

Visual Studio Solution[MSDN: http://msdn.microsoft.com/en-us/library/bb165922(VS.80).aspx]Overview of Solutions A solution is a grouping of one or more projects that work together to create an application. The project and status information that

Don’t optimize prematurely

[Copied From C++ Coding Standards--chapter 8] We define premature optimization as making designs or code more complex, and so less readable, in the name of performance when the effort is not justified by a proven performance need (such as actual

溫故Project Setting

1. Inline function expansion,內嵌函式擴充的三種最佳化(使用內聯可以節省函數調用的開銷,加快程式速度):Disable不使用內聯;Only __inline,僅函數定義前有inline或__inline標記使用內聯;Any Suitable,除了inline或__inline標記的函數外,編譯器“覺得”應該使用內聯的函數,都使用內聯。 2. Enables minimal rebuild,通過儲存關聯資訊到.IDB檔案,使編譯器只對最新類定義改動過的源檔案進行重編譯,

Logical AND and OR operators: short-circuit evaluation

From C++ Primer:The logical AND and OR operators always evaluate their left operand before the right. The right operand is evaluated only if the left operand does not determine the result. This evaluation strategy is often referred to as

Don’t pessimize prematurely

[Copied from C++ coding standards-chapter 9] Easy on yourself, easy on the code: All other things being equal, notably code complexity and readability, certain efficient design patterns and coding idioms should just flow naturally from your

Two Ways To Export from a DLL

Exporting from a DLL A DLL file has a layout very similar to an .exe file, with one important difference — a DLL file contains an exports table. The exports table contains the name of every function that the DLL exports to other executables. These

Some MACRO In VS Project Setting

Macros for Custom Build CommandsYou can use the File and Directory drop-down lists to insert any of the following directory and filename macros in either grid at the current insertion point location. The File and Directory drop-down lists are on the

MFC Is MVC

關於MVC結構模式無須多言,如所示:

Managing the State Data of MFC Modules

MFC Library Reference[MSDN: http://msdn.microsoft.com/zh-cn/library/0asx94f7(VS.80).aspx] Managing the State Data of MFC ModulesThis article discusses the state data of MFC modules and how this state is updated when the flow of execution (the path

MFC Extension dll VS Regular Dll

1. Dll typesThree:Win32 dllMFC regular dllMFC extension dll2. MFC extension dllBasic[MSDN]:An MFC extension DLL is a DLL that typically implements reusable classes derived from the existing Microsoft Foundation Class Library classes.An MFC extension

編程的首要原則(s)是什嗎?

[轉載自: http://mindhacks.cn/2009/03/09/first-principles-of-programming/] 半年前,JoelOnSoftware和CodingHorror合搞的stackoverflow.com剛上線不久,我興沖沖地跑過去扔了一個問題:你們認為編程的首要原則是什嗎? 作為我的學習原則的一個實踐: 8. 學習一項知識,必須問自己三個重要問題:1. 它的本質是什麼。2. 它的第一原則是什麼。3.

LoadString(nID) Problem and Solution

CString::LoadString(UINT nID)Conclusion: the correct way to load string resource by ID is to call CString::LoadString(HINSTANCE hInstance,UINT nID), specifying the dll handler you want to search for.ProblemCString::LoadString(UINT nID) will first

使用“devenv.exe /edit ”命令在一個已經存在的vs執行個體裡開啟檔案

使用“devenv.exe /edit ”命令在一個已經存在的vs執行個體裡開啟檔案 原文連結:You can use devenv.exe /edit to open a file in an existing Visual Studio instance操作步驟: 運行命令:devenv /edit ,可以在IDE裡開啟檔案。 你也可以建立一個cmd檔案,例如VSEdit.cmd,在檔案裡(可以用記事本)寫如下內容: @"devenv.exe" /edit

LoadLibrary And GetProcAddress And FreeLibrary

LoadLibraryHMODULE WINAPI LoadLibrary(__in LPCTSTR lpFileName);Return ValueIf the function succeeds, the return value is a handle to the module.If the function fails, the return value is NULL. To get extended error information, call

Dialog Data Exchange

[MSDN:http://msdn.microsoft.com/en-us/library/xwz5tb1x(VS.80).aspx]Dialog Data Exchange  If you use the DDX mechanism, you set the initial values of the dialog object's member variables, typically in your OnInitDialog handler or the dialog

VS:Managing Application Resources

Visual Studio  Managing Application Resources  You can create and manage resources for your project using the Resource Designer or the Resources page of the Project Designer. Resource types supported by the Resource Designer include

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