attunity cdc

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

of template-Based C ++ classes to simplify the compilation of small and fast COM objects. To use the cimage class in the MFC program, the image header file atlimage. h must be included: (not included in vs08 SP1) # Include 1. Load bitmap files // Cimage can load JPG, BMP, Tif. PNG and other image files, while cbitmap can only load BMP image files if (! Pathfileexists (imgfilepath) return NULL; cimage nimage; nimage. Load (imgfilepath); Return nimage. Detach (); // The returned hbitmap can b

. ContentsThere are two available configuration types, that is, connection device configuration CDC (connected device configuration)) And connect the limited device to configure cldc (connected limited device configuration ).1.1.1 Connection Device ConfigurationCDC is applied to mobile devices with relatively large memory and powerful processor capabilities. The CDC specification uses memory optimizationThe

Region Fill Algorithm one. Objective: Master the basic principle and realization of ordered table method, understand simple interactive technology. two. Requirements: 1. Boundary seed interaction input; 2. The example contains a concave-convex polygon type; 3. Support color selection, pattern editing. three. Content: 1. Realization of Ordered table method; Find out the maximum minimum xmin,xmax,ymax,ymin of the transverse ordinate of the intersection point (x1,y1) of the scan line and the poly

use the ReleaseDC (PDC); Release the resource, otherwise it will cause a memory leak because GetDC (); The function is assigned some resources that are associated in the memory that the PDC points to, and if ReleaseDC is not called, when the PDC is out of scope, Just the PDC this 32-bit pointer variable (which can also be said to be an integer variable) of memory is freed up, and the memory that the PDC points to has no chance of being freed. Here also reflects a principle of MFC, get to need r

. They work together to provide a mobile Java platform. These two specifications are deployments and profiles. Configuration and profile specifications put forward a considerable number of technical terms, which we will discuss below. Configuration By abstracting the configuration, J2EE processes a large number of hardware functions of different mobile devices. J2_configuration defines virtual machines and low-level APIs available for specific devices, and provides corresponding develo

* *** Add the DLG. h header file: // Add the paint brush and dot variable array to the project: public: cpen m_pen [5]; cpoint m_point [5]; public: void drawline (CDC * PDC ); void drawpolyline (CDC * PDC); void drawpolygon (CDC * PDC); void drawrect (CDC * PDC); void drawroundrect (

designed his first computer ear 1103. But it wasn't long before era was acquired. Clay found that the new company was far behind his own goal-developing the first-stream supercomputer. Finally, Clay chose to leave. In 1957, clay and several other era colleagues resigned and founded the CDC. At the beginning of the design of CDC 1604, Clay's most important innovation in the electronics industry was the adv

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

. 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