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<br /> <br />When you create BSTRs and pass them between COM objects, you must take care in treating the memory they use in order to avoid memory leaks. When a BSTR stays within an interface, you must free its memory when you are done with it. However, whe

<br />This note describes the use of the CWnd::PostNcDestroy method. Use this method if you want to do customized allocation of CWnd-derived objects. This note also explains why you should use CWnd::DestroyWindow to destroy a C++ Windows object instead of

<br />Occasionally, an application needs to examine the contents of a thread's message queue from outside the thread's message loop. For example, if an application's window procedure performs a lengthy drawing operation, you may want the user to be able to

<br />This topic describes the programming elements that applications use to create and use windows; manage relationships between windows; and size, move, and display windows.<br />The overview includes the following topics.<br /> Desktop WindowApplication

<br />This overview discusses features of windows such as window types, states, size, and position.<br /> Window TypesOverlapped WindowsPop-up WindowsChild WindowsLayered WindowsMessage-Only WindowsWindow RelationshipsForeground and Background WindowsOwned

<br />Unlike MS-DOS-based applications, Windows-based applications are event-driven. They do not make explicit function calls (such as C run-time library calls) to obtain input. Instead, they wait for the system to pass input to them.<br />The system passe

<br />A Remote Desktop Services server has multiple namespaces for the following named kernel objects: events, semaphores, mutexes, waitable timers, file-mapping objects, and job objects. There is a global namespace used primarily by services in client/ser

<br />File mapping is the association of a file's contents with a portion of the virtual address space of a process. The system creates a file mapping object (also known as a section object) to maintain this association. A file view is the portion of virtu

<br />The following functions are used to retrieve or set system information.<br /><br />Function<br />Description<br />DnsHostnameToComputerName<br />Converts a DNS name to a NetBIOS name.<br />EnumSystemFirmwareTables<br />Enumerates all system firmware

<br />File mapping can be used to share a file or memory between two or more processes. To share a file or memory, all of the processes must use the name or the handle of the same file mapping object.<br />To share a file, the first process creates or open

<br />Murali R. Krishnan<br />Microsoft Corporation<br />February 1999<br />Summary: Discusses common heap performance problems and how to protect against them. (9 printed pages)Introduction<br />Are you a happy-go-lucky user of dynamically allocated C/C++

<br />The pages of a process's virtual address space can be in one of the following states.<br />1. Free<br />The page is neither committed nor reserved. The page is not accessible to the process. It is available to be reserved, committed, or simultaneousl

使用 GetProcAddress Function 时，有以下几点需要特别留意：1. 第二个参数类型是 LPCSTR，不是 LPCTSTR；2. 用 __declspec(dllexport)，按 C 名称修饰（extern "C"） 导出的函数名，对于 __std