cdc cancun

-*-import osdef cdwalker (CDROM, cdcfile): Export = "" For root, dirs, files in Os.walk (CDROM): #print (root, dirs, files) export + = "\%s;%s;%s"% (root, dirs, files) #print (export) Open (Cdcfile , ' W '). Write (export) cdwalker (' e:\\ ', ' CD1.CDC ') cdwalker (' e:\\ ', ' CD2.CDC ')Little White got the first Python function and successfully ran it two times, recording the contents of the same disc to 2

------------------------------------------------------------------------------------------- This article turns from : http://blog.csdn.net/xuyongbeijing2008/article/details/8063801 ------------------------------------------------------------------------------------------- Cdc::setmapmode virtual int setmapmode (int nmapmode ); Function Description: This function sets the mapping method for the specified device environment, which defines the unit of me

Cmytestview::ondraw (cdc* pDC) {cmytestdoc* PDoc = GetDocument (); Assert_valid (PDOC); if (!pdoc) return; TODO: Add native data hereAdd the drawing code/*cbitmap bitmap; Bitmap. LOADBITMAPW (Idb_me); *///Paint/*pdc->bitblt (100,50,50,60,memdc,0,0,srccopy); * */*point pt; pt.x=200; pt.y=200; CImageList ImageList; Imagelist.create (50,60,ilc_color24| ilc_mask,1,0); Imagelist.add (bitmap,rgb (0,0,0)); Imagelist.draw (pdc,0,pt,ild_transparent);

The big difference between the first call to Cdialog::onpaint () and the Last Call to Cdialog::onpaint () in the OnPaint () function is that if you do not pay attention to this problem there will be an unreasonable drawing problem-the effect is not coming out! After two hours of torture, the problem lies in the following lessons:the Cdialog::onpaint () function is called first in the OnPaint () function:[CPP]View PlainCopy Add a bitmap background to the main form client area void Cbackimag

alternately in a short period of time, making the display window appear flashing. If you set the background to null, the duplicate drawing will not flash. Of course, this will make the display of the window messy, because during the re-painting, there is no background color to clear the original drawing, and a new image is superimposed. 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 in

side to draw and display, so when displaying a frame of graphics, the slowdown is less flickering, so as to achieve smooth animation; and, graphics are directly displayed in the memory to the current form, so the speed is also very fast, so as to achieve high-speed animation. The following describes how to implement these technologies:1,Start VC ++ and create a single-document application supported by MFC.2,Select the menu item inertnew class to create a class inherited from the cbitmap class,

);Ctx_ddl.set_attribute ('mywordlist', 'prefix _ max_length ', 5 );Ctx_ddl.set_attribute ('mywordlist', 'substring _ Index', 'yes ');End;BeginCtx_ddl.create_preference ('cnlex ', 'Chinese _ lexer ');-- === Ctx_ddl.create_preference ('chinalex ', 'Chinese _ vgram_lexer') === ---;End; 3. ============ create an index ====================Create index name_index on CDC. Test (name)Indextype is ctxsys. ContextParameters ('datastore ctxsys. direct_datastore

limit to the above approach, because not all parent windows can accept this special WM_PAINT message feature, but MSDN mentions that most controls have this feature, and you should be careful to read its document content.Third: If the above methods are not, then the most stupid way, the GDI function to brush the background of the child window, but you need to know the parent window background color, background bitmap and other information. For example, to fill the background of a child window w

users often ask: "Why can't the WM_ERASEBKGND message in the dialog box be found in class wizard? Is this message unavailable in the dialog box "? In fact, the dialog box is also a window, and it also contains the WM_ERASEBKGND message, but it is filtered out by the dialog filter used by the MFC class wizard (only in the display of the message window, does not really do not respond to this message), in order to highlight the exclusive message and control events in the dialog box during code wri

First load an image with ID idb_bitmap2 In testdlg. h: Cbrush m_brbk; // defined in public In testdlg. cpp: Add the following to the oninitdialog () initialization function: Bool ctestdlg: oninitdialog () { Cdialog: oninitdialog (); Cbitmap BMP; BMP. loadbitmap (idb_bitmap2 ); M_brbk.createpatternbrush ( BMP ); BMP. deleteobject (); Return true; // return true unless you set the focus to a control } Open the Class Wizard and find the wm_ctlcolor message. The onctlcolor () function is reloaded

content, in this way, the background color and the display image appear alternately in a short period of time, making the display window appear flashing. If you set the background to null, the duplicate drawing will not flash. Of course, this will make the display of the window messy, because during the re-painting, there is no background color to clear the original drawing, and a new image is superimposed. Some people may say that the blinking is caused by the drawing speed being too slow or t

, the duplicate drawing will not flash.Of course, this will make the display of the window messy, because there is no background color for the originalThe drawn image is cleared, and the new image is superimposed.Some people may say that flashing is caused by the drawing speed being too slow or the graphics displayed are too complex,In fact, this is not true. The influence of the display speed of the drawing on the flicker is not fundamental.For example, in ondraw (

wm_erasebkgnd in the message list of the dialog box. Figure 2 modify a message Filter Now you can use Class Wizard to add the message response function of wm_erasebkgnd and modify this function as follows: Bool ccustdlgdlg: onerasebkgnd (CDC * PDC) { Crect rcclient; Getclientrect ( rcclient ); PDC-> fillrect ( rcclient, m_brbkgnd ); Return true; // Return cdialog: onerasebkgnd (PDC );} M_brbkgnd is a cbrush, which has been initializ

For more information about how to use VC to open the mo extension symbol library, see the article "Custom symbol method (for Mo) in VC. The key code is as follows:Public:Cpen g_hpen;// IcustomlineStdmethod (setupdc) (long HDC, double DPI, idispatch * pbasesym){CDC * pcdc = CDC: fromhandle (HDC ); // Cpen * g_hpen = createpen (pbasesym-> style, pbasesym-> size, pbasesym-> color ); Dispid;Dispparams dispparam

1.Picking handle CDC problems:1. cdc dc; DC. lineto (point); cannot run 2. CDC * Dc = getdc (); DC-> lineto (point );There are a large number of handle packaging classes in MFC. As the name suggests, the so-called handle packaging class refers to these classes encapsulate the handles of System Objects (hwnd, HDC, hbitmap, etc.), and provides a group of functi