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[VC/MFC] programdesign DL : 0: Windows编程基础源程序组成结构 MFC编程基础鼠标应用程序实例消息映射-PostMessage() The PostMessage function places (posts) a message in the message queue associated with the thread that created the specified window and then returns without waiting for the thread to process the message. Messages in a message queue are retrieved by calls to the GetMessage or PeekMessage function. BOOL PostMessage( HWND hWnd, // handle of destination window UINT Msg, // message to post WPARAM wParam, // first message parameter LPARAM lParam // second message parameter ) 其中 hWnd Handle to the window whose window procedure is to receive the message. Two values have special meanings: ValueMeaningHWND_BROADCASTThe message is posted to all top-level windows in the system, including disabled or invisible unowned windows, overlapped windows, and pop-up windows. The message is not posted to child windows.NULLThe function behaves like a call to PostThreadMessage with the dwThreadId parameter set to the identifier of the current thread. Msg Specifies the messa
Date : 2025-12-28 Size : 468kb User : 李毅
[VC/MFC] Lesson6 DL : 0: VC++ 孙鑫第六讲菜单的工作原理及编写应用，菜单命令消息在MFC框架程序的几个类中的传递顺序和处理过程。标记菜单、缺省菜单的实现原理、图形菜单的实现及常犯错误的分析，GetSystemMetrics的应用，快捷弹出菜单的实现方式及其命令响应函数有效范围（与弹出菜单时所指定的父窗口有密切的关系，最底层的子窗口具有最优先的处理机会）。动态菜单的编写，如何让程序在运行时产生新的菜单项及如何手工为这些新产生的菜单命令安排处理函数，如何在顶层窗口中截获对菜单命令的处理，更进一步掌握CString类的应用。-VC++ Xin Sun Lecture The working principle of the menu and write applications, the menu command message in the MFC framework program passed a few classes in the order and process. Marking menu, the default menu of the implementation principle, the realization of the menu graphics and the analysis of common mistakes, GetSystemMetrics application, fast way to achieve pop-up menu and order response function range (with pop-up menu, specify the parent window when the close the relationship between the child window of the bottom of the treatment with the highest priority opportunities.) Dynamic menu preparation, how to make the program run time and how the new menu items created by hand for these new arrangements for dealing with the function menu commands, how to capture top-level window handle of the menu commands, and further control the application of CString class.
Date : 2025-12-28 Size : 55.09mb User : 匣子