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When entering information, we may have a large amount of information, which is not necessary. In this case, we need to provide an interface for Information Input personnel to choose from. For example, there is a problem in the employee information

Msdn explains it as follows: The wm_nchittest message is sent to a window when the cursor moves, or when a mouse button isPressed or released. If the mouse is not captured, the message is sent to the window beneath the cursor. Otherwise, the message

Since ancient times, Chinese people have the habit of writing Chinese characters from right to left and from top to bottom. When we use the output function in our own applications, the output is always a horizontal text from left to right. Is it

The content is from an online article. I did not write down the name. I would like to thank the author! VC Study Notes 1: Enable and disable buttons Use the member variables of classwizard to define variables for buttons, such as

OnnchittestCwnd: onnchittestAfx_msg uint onnchittest (cpoint point );Return Value: one of the enumerated values of the mouse hitting Test listed below.· Htborder is placed on the border of a window without a mutable border.· Htbottom is at the

In the second part of the wtl clock program, when the timer throws the wm_timer message, the processor ontimer does the following work: Lresult ontimer (uint_ptr nidevent) { if (1! = Nidevent) setmsghandled (false); else { getlocaltime (&

Article 1: http://blog.csdn.net/jax_lee/article/details/6771580 But I think this is more direct and clearer .. Author: A Kun (a_kun@etang.com) There are many applications that need to be hidden when they are moved together. These programs run as

The key to mouse response is to operate two functions: onlbuttondown and onlbuttonup; 1. Use MFC Appwizard (exe) to create a single-document MFC project 2. Add necessary data members to the definition of the cxxxview class. Class cdrawview: Public

Use VC ++ to create a deformation form First, we need to create a project distort Based on the dialog box to generate three classes, namely caboutdlg, cdistort, and cdistortdlg. We will make major changes to the cdistortdlg class, therefore, we

Original] basic Windows GDI application (vc sdk)  I haven't posted a post for a long time. Today, my hand is itchy.The drawing functions of GDI are basically stateful, and all functions require an HDC handle.There are several ways to obtain this HDC:

Many applications require them to be hidden when they are moved together. These programs run as backend programs and tend to display only one icon in the tray area if they do not affect other windows. These programs are usually dialog box programs,

MDIApplicationProgramIs another important type of document view program. It features that users can open multiple documents at a time, and each document corresponds to a different window; the menu of the main window will automatically change with

DC --> device context (device environment ). It is an abstraction of a Specific Drawing Object. A dc is a structure at the underlying layer of windows.In a Windows Multi-task environment. AProgramThe output of program B cannot be affected, so every

Abstract: This article introduces the MFC development method of ActiveX controls in COM components, and describes how to customize and create inventory attributes, methods, event adding methods, and property pages. This allows you to master the

[Options menus]Avkon menu items are generated from the menu bar and menu pane resources specified in the RSS file. In Windows, the simulator can be started by pressing F1 or using the options custom function key, which is implemented by using

In this example: Program project1; uses Windows, messages; {custom process for wm_lbuttondown message calling} procedure onlbuttondown (H: hwnd); var brushhandle: hbrush; rect: trect; begin getclientrect (H, rect); {obtain the client

Unit unit1; interfaceuses windows, messages, sysutils, variants, classes, graphics, controls, forms, dialogs, stdctrls; Type tform1 = Class (tform) button1: tbutton; button2: tbutton; button3: tbutton; Procedure button1click (Sender: tobject);

Using the GDI function in VC to implement high-speed smooth animation VCUse GDIFunction library high-speed smooth animation Abstract:In the development of many game software, high-speed and smooth animation requires many deep technologies,

Sticktoprogram Device coordinates and logical coordinates   Windows applications use a logical unit for drawing graphics. The size of each logical unit is determined by the ing mode, this logical unit can be the same as the unit of the device (a

1. Get the application pointerCmyapp * PAPP = (cmyapp *) afxgetapp (); 2. Obtain the master framework pointerThe Public member variable m_pmainwnd in cwinapp is the pointer of the main framework.Cmainframe * pmainframe = (cmainframe *) (afxgetapp ()-