cdc ecards

. Get the ID of the background image For example, the ID number is IDB_Chessboard. Then define the member variables in the view class. CBitmap m_chessboard; CDC Chessboard; In the OnDraw function of the view class M_chessboard.LoadBitmap (IDB_Chessboard ); Chessboard. CreateCompatibleDC (pDC ); Chessboard. SelectObject (m_chessboard ); PDC-> BitBlt (850,600, Chessboard, SRCCOPY); (8 parameters) In this way, the background image is drawn. 5. Use the s

In order to achieve the sorting, calling and rotating commands, these actions must be performed on the object. Lines, circles, and rectangles are developed respectively. Class cmyrect;Class Cline: Public csolid{Public:Cline ();Cline (cposition pos1, cposition pos2 );Csolid * copysolid () {return New Cline (this-> m_begin, this-> m_end);} // copy a straight line in DepthVirtual ~ Cline ();Public:Csolid * explan (cposition POs, short zdelta );Csolid * rotate (const cposition base, float a

being too slow or the display graphics being too complex. In fact, this is not true. The influence of the display speed of the drawing on the flashing is not fundamental. For example, in ondraw (CDC * PDC), write as follows: PDC-> moveTo (0, 0 );PDC-> lineto (100,100 ); This drawing process should be very simple and fast, but it will still flash when pulling the window changes. In fact, in principle, the more complex the process of drawing, the slowe

// Draw images through resourcesStatic void drawbitmap (uint bitmap, CDC * PDC, crect rect){Cbitmap BMP;If (BMP. loadbitmap (Bitmap )){Bitmap BMP Info;BMP. getbitmap ( BMP info );CDC dcmemory;Dcmemory. createcompatibledc (PDC );Dcmemory. SelectObject ( BMP );PDC-> setstretchbltmode (halftone );PDC-> stretchblt (rect. left, rect. top, rect. width (), rect. height (), dcmemory, 0, BMP info. bmwidth, BMP info

. Some people may say that the blinking is caused by the drawing speed being too slow or the display graphics being too complex. In fact, this is not true. The influence of the display speed of the drawing on the flashing is not fundamental. For example, in ondraw (CDC * PDC), write as follows: PDC-> moveTo (0, 0 );PDC-> lineto (100,100 ); This drawing process should be very simple and fast, but it will still flash when pulling the window changes. In

a short period of time, making the display window lookIn a flash. If you set the background brush to NULL, no matter how you redraw the graphic, it will not flash.Of course, this will make the window display mess, because there is no background color when redrawing the originalThe drawing is cleared, and a new shape is superimposed on it.Some people will say that flashing is because the speed of the drawing is too slow or the graphics displayed are too complex to create,In fact, this is not tru

Beta, the computer Alpha can access file A, and the computer Beta can access file B. Files A and B are very similar, alpha and Beta computers are interconnected through low-speed networks. The data synchronization algorithm process based on dedupe technology is similar to Rsync, which is described as follows: 1. Beta uses data splitting algorithms, such as FSP (fixed-size partition) and CDC (content-defined chuking), to split file B into data blocks

active child frame window in multiple documentsCframewnd::getactiveview View WindowMultiple frameworkSingle Document main frameCview::getdocument get the document associated with the viewCdocument::getdoctemplate used to get document templates associated with a documentCdoctemplate::createnewframe Creating a frame windowCdoctemplate::initialupdateframe Initializing the Update frame windowCDocument::UpdateAllViews to notify all view data updatesOnUpdate function call that causes all views to be

surface. It defines the minimum set of functions for Java virtual machines and the smallest collection of Java class libraries for different market needs. In J2ME devices, the JVM is closely connected to the configuration layer, which embodies the basic functionality of each type of device. 3. Simple surface: This layer is most common to users and application providers. It defines the minimum set of functions for a Java Virtual machine and the smallest collection of Java class libraries for sp

Resize CImage void Createstretchimage (CImage *pimage,cimage *resultimage,int stretchheight,int) {if (PI Mage->isdibsection ()) {//Get pimage DC cdc* pImageDC1 = Cdc::fromhandle (Pimage->getdc ()); Your DC, so you must use FromHandle to get the DC CBitmap *bitmap1=pimagedc1->getcurrentbitmap (); BITMAP Bmpinfo; Bitmap1->getbitmap (bmpinfo); Establishment of a new CImage resultimage->create (Stretch

1, the problem of flashing screen In the GDI drawing system, each time a zone drawing operation is called, such as FillRect, BitBlt, and so on, the graphical display system will perform a refresh operation on the specified area in the screen. If the operation of the area drawing operation is frequent, we will find that the splash screen will appear.Using the following code to test the splash screen problem, the XP system splash screen is particularly serious, in the Win7 system, the splash scree

an oval form:BOOL Ctestdlg::oninitdialog () { cdialog::oninitdialog (); ... CRGN Rgn; Rgn. CreateEllipticRgn (0,0,max,+); SetWindowRgn (rgn,true);}Figure One oval formFour, the drawing path method creates "region"The process for creating a "region" using this method is as follows:The first step is to draw the form shape you want to create.Some of the member functions in the CDC class are used in this step as follows:BOOL

increase load. Disadvantage: Log table maintenance needs to be completed by the business system, the business system business operation procedures need to be modified to log information. Log table maintenance is more troublesome, the original system has a greater impact. Heavy workload, large changes, there is a certain risk.(f) Oracle change data Capture (CDC mode)The data is judged by analyzing the log of the database itself. Oracle's change data C

ReferenceArticle: Bai Qiao Original: Beautification interface of VC Before each control is drawn, a wm_ctlcolor notification message is sent to its parent window. In the message processing function, you can set the foreground color, background color, and font of the control to display the text. The message processing function also requires that a paint brush handle be returned to erase the customer zone before the control is drawn. The message processing function of wm_ctlcolor ing is afx_ms

LOG_REUSE_WAIT_DESC for replication?The suspect was transferred to the CDC.SELECTis_cdc_enabled, Case whenIs_cdc_enabled= 0 Then 'CDC feature disabled' ELSE 'CDC feature enabled'ENDDescription fromSYS. DATABASESWHERENAME= 'XXXX'The library does open CDC and continues to check the health status of the

setbuttoncursor (hcursor );Void setslidepos (uint NPOs );Void setrange (uint Nmin, uint Nmax );Void setbitmap (uint nbkgnd, uint nslide );Protected:Afx_msg bool onsetcursor (cwnd * pwnd, uint nhittest, uint message );Afx_msg void onlbuttondown (uint nflags, cpoint point );PRIVATE:Uint m_nwidth;Void adjustposition ();Void drawslide (CDC * PDC );Void drawbackground (CDC * PDC );Uint m_ncurrentpos;Uint m_nmax

1. Why does the displayed image FLASH [/B]Most of our drawing processes are stored in the ondraw or onpaint functions. ondraw calls onpaint for screen display. When the window needs to be re-painted for any reason, the display area is always cleared with the background color before onpaint is called. The background color is often in a large contrast with the drawing content, in this way, the background color and the display image appear alternately in a short period of time, so that the [/B] dis

drawing speed being too slow or the display graphics being too complex. In fact, this is not true. The influence of the display speed of the drawing on the flashing is not fundamental. For example, in ondraw (CDC * PDC), write as follows: PDC-> moveTo (0, 0 );PDC-> lineto (100,100 ); This drawing process should be very simple and fast, but it will still flash when pulling the window changes. In fact, in principle, the more complex the process of draw

Author: Zhu JincanSource: http://blog.csdn.net/clever101/ The following are two methods of writing the onpaint function (the response function of the wm_paint message) in the dialog box. Statement 1: View plaincopy to clipboardprint?Void cmydlg: onpaint (){CDC * PDC = getdc ();// My drawing codeMydrawfunction (PDC );Releasedc (PDC );}Void cmydlg: onpaint (){CDC * PDC = getdc ();// My drawing codeMydrawfun

alpha can access file a, and the computer beta can access file B. Files A and B are very similar, alpha and beta computers are interconnected through low-speed networks. The data synchronization algorithm process based on dedupe technology is similar to rsync, which is described as follows:1. Beta uses data splitting algorithms, such as FSP (fixed-size partition) and CDC (content-defined chuking), to split file B into data blocks of equal or unequal