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, andThe initialization process of the dialog box is different from that of SDI and MDI. In the dialog box, you only need to call domodule, createdialog, and other functions once.Yes.
following is the sequence diagram of the serial interface of ili9481ds SPEC:
The following information can be extracted:
1) read data from the LCD on the rising edge of the SCL, And the level changes on the falling edge SDA
2) The transmission unit is 9bit. The first bit is used to identify whether the following 8bit is command or data. The first bit is 0, then cmd, and the first bit is data.
The Code is as follows:
Command issuing Function
Static void evaluate (u8 Val) {int I; gpio
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, and the initialization process of the dialog box is different from that of SDI and MDI. In the dialog box, you only need to call domodule, createdialog, and other dialog box functions once,
1. Document classes are usually related to data access and other processing processes. They are mainly used to represent document data, but each view must be attached to a framework (in SDI, it is attached to mainframe, attached to childframe in MDI). You can place the toolbar and menu on the frame;
2. some types of documents, frameworks, and views are associated with each other to form a document template class (the base class is cdoctemplate, and it
Bytes ----------------------------------------------------------------------------------------------------Hide dialog box in VCAuthor: Admin Source: www.swxz88.cn Release Date: 0:51:44Decrease font to increase font sizeMany 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, and the initialization process o
Creating MDI apps
Before multi-SDI, the MDI was available. wtl provides a series of related classes based on the cframewindowimplbase base class, which makes it especially easy for programmers to compile the MDI application. Figure9 shows the MDI window architecture of wtl.
Figure 9: MDI windowing hierarchy of wtl
The cmdiwwindow class is the interface class of the MDI application. It inherits from the cwindow base class and adds two data members t
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Package scsi-target-utils-1.0.24-2.el6.x86_64 is already installed
You need to configure the yum source yourself to install the SDK using the YUM command)
[Root @ racscsi home] # yum-y install scsi-target-utils
Start the service and add it to auto-start.
[Root @ racscsi home] #/etc/init. d/tgtd start
Starting SCSI target daemon: [OK]
[Root @ racscsi home] # chkconfig tgtd on
Use the fdisk command to create several partitions, or use extern
SPI, is the abbreviation of English serial Peripheral interface, as the name implies is the serial peripheral device interface. SPI, is a high-speed, full-duplex, synchronous communication bus, and on the chip's pin only occupies four lines, saving the chip pin, while the layout of the PCB space saving, convenient, it is for this simple and easy to use features, now more and more chips integrated this communication protocol.SPI is a ring bus structure, composed of SS (CS), SCK,
message filtering and On-idle functions. change notifications caused by wm_settingchange can also be intercepted.
MFC provides a "document-framework-View" structure. wtl also provides a framework (such as a top-level window that includes menu bar, toolbar, and status bar) and a view, however, documents are not supported at all. The MFC method often hinders advanced developers. Its documentation is serialized based on binary data. In today's Internet world, XML/XSL-based document formats are
Obtain CWinApp:-Directly call AfxGetApp () or use theApp in CMainFrame, CChildFrame, CDocument, and CView-Only AfxGetApp () can be used in other classes ()
Obtain CMainFrame:-Use AfxGetMainWnd () or m_pMainWnd in CMinApp-GetParentFrame () is available in CChildFrame ()-Use AfxGetMainWnd () in other classes ()
Obtain CChildFrame:-Use GetParentFrame () in CView ()-Use MDIGetActive () or GetActiveFrame () in CMainFrame ()-Use AfxGetMainWnd ()-> MDIGetActive () or AfxGetMainWnd ()-> GetActiveFrame (
Tutorial using OLE Automation in JavaScript
5. How to handle an instance of an application
A document template is a connection between an application and the document it supports. There are two types of document templates: a single document, which can open only one type of document at a time, and multiple document templates, which allow multiple documents to be opened at the same time. The following table lists the various types of Windows applications:
Single-Document interface (
The code-run effect is shown below:
1. Objective
Although the function of MFC is very powerful, but the appearance of Windows Template Library (WTL), undoubtedly explained that MFC has certain drawbacks. Compared with MFC, the function does not improve MFC. For example, MFC supports Doc/view architecture, and WTL does not support it. At the same time, WTL does not have Microsoft's official support. However, WTL is based on a template (template) with a minimum application of 24KB and, unlike
Unidirectional transmission ). It is also common to all SPI-based devices, including SDI (data input), SDO (data output), sck (clock), and CS (chip selection ).
(1) SDO-Data output from the master device
(2) SDI-Master device data input, output from device data
(3) sclk-Clock signal generated by the main device
(4) CS-Enable signal from the device, controlled by the main device
Among them, CS is t
Methods for obtaining other class pointers in the MFC window
Source: China self-learning Programming Network Release Date: 2008-09-26
Obtain CWinApp:-Directly call AfxGetApp () or use theApp in CMainFrame, CChildFrame, CDocument, and CView-Only AfxGetApp () can be used in other classes ()Obtain CMainFrame:-Use AfxGetMainWnd () or m_pMainWnd in CMinApp-GetParentFrame () is available in CChildFrame ()-Use AfxGetMainWnd () in other classes ()Obtain CChildFrame:-Use GetParentFrame
course the name:SPI (Serial Peripheral Interface: Serial Peripheral Interface );I2C (inter ic bus: indicates the INTER-ic bus)UART (Universal Asynchronous Receiver Transmitter: Universal Asynchronous transceiver)Second, the difference lies in the electrical signal line:The SPI bus consists of three signal lines: SCLK, SDO, and SDI ). The SPI bus allows multiple SPI devices to connect to each other. The SPI device that provides the SPI serial clock is
control pointer of a dialog box? )
How to provide prompt information for controls in the dialog box)
How to change the background color of the dialog box)
A cricheditctrl control is added, so the program cannot be started for any reason)
How to adjust the tabstop sequence of controls on the dialog window)
How to load a menu in a dialog box)
Size of the initialized application)
How to get the view pointer)
How to keep my program from creating a new document at startup)
Document Structure Analysi
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