sams teach yourself visual c 2008 pdf

... the applicationmessage queue L ISTING 4.1 CONTINUED A callback function is a function you create that is called directly by the Windows operating system Callback functions have specific argument ... function as an ment to a Windows function that accepts callback functions as arguments When you pass the function address to Windows, your function is called directly every time the circumstances ... making them completely accessible outside the dialog class You can changethis by placing a private:access specifier where the public:access specifier is Youdon’t want to place anything after the

Ngày tải lên: 13/08/2014, 18:20

... first // Create a device context CDC dcMem; // Make the new device context compatible with the real DC dcMem.CreateCompatibleDC(dc); // Select the bitmap into the new DC dcMem.SelectObject(&m_bmpBitmap); ... generated code for this functioncreates a CPaintDCvariable instead of the normal CDC class The CPaintDCclass is a Trang 27descendent of the CDC device context class It automatically calls the ... the second dialog class, CPaintDlg,and specify the variable type as static const COLORREF, the name as m_crColors[8],and the access as public Open the source code file for the second dialog class,

Ngày tải lên: 13/08/2014, 18:20

... SetCheckfunction can check or uncheck the menu entry,depending on whether the argument passed is 1or 0(1checks, 0unchecks) The argu-ment portion for the SetCheckfunction is a flow-control construct that ... Document Interface Applications 23111 The two MDI derived classes, CMDIFrameWnd(the CMainFrameclass in your project) and CMDIChildWnd(the CChildFrameclass in your project), are the only two classes ... IDs correctly Once you make the corrections (be sure to delete anyduplicates), save your corrections, restart Visual C++, and recompile your applica-tion The color menu should work correctly

Ngày tải lên: 13/08/2014, 18:20

... IDC_EFAX Static Text ID IDC_STATIC Caption Birthdate: Edit Box ID IDC_EDOB Check Box ID IDC_CBCARD Caption Send Card Static Text ID IDC_STATIC Caption Notes: Edit Box ID IDC_ENOTES Multiline Checked ... IDC_ESNAME Static Text ID IDC_STATIC Edit Box ID IDC_ECITY Static Text ID IDC_STATIC Caption State: Edit Box ID IDC_ESTATE Static Text ID IDC_STATIC Caption Zip: Edit Box ID IDC_EZIP Static Text ... beenencapsulated into two classes, CRecordsetand CDatabase The CDatabaseclass containsthe database connection information and can be shared across an entire application TheCRecordsetclass encapsulates

Ngày tải lên: 13/08/2014, 18:20

... base class happens to be an MFCclass that is not accessible as an MFC class (such as CObject), then you can ignore thiswarning because the correct header file is already part of the project MFC Class ... AFX_EXT_CLASSmacro in the class declaration, asfollows: class AFX_EXT_CLASS CMyClass { }; This macro exports the class, making it accessible to Visual C++ applications You need to include this macro ... void, the declaration as SetRect(CRect rDrawArea), and the access as public Edit the function as in Listing 16.1 L ISTING 16.1 THE CModArt SetRect FUNCTION 1: void CModArt::SetRect(CRect rDrawArea)

Ngày tải lên: 13/08/2014, 18:20

... the check box is kept in sync with the control, once the check box is unchecked, the thread will stop itself. However, when the check box is checked, you’ll need to call the document function ... void, the function declaration as SuspendSpinner(int nIndex, BOOL bSuspend), and the function access as public, and check the Static check box. Edit the code for this function, adding the code in ... ActiveX container, such as a Visual C++ or Visual Basic application As you learned on Day 9, “Adding ActiveX Controls to Your Application,” ActiveX controls provide a series of interfaces

Ngày tải lên: 13/08/2014, 18:20

... destructors If a constructor or a destructor is not defined, the compiler creates one foryou The Constructor Function A constructor is a class initialization function that is executed automatically ... destructor function is the opposite of a constructor function, which is executed matically when the block in which the object is initialized is exited A destructor releasesthe object and hence frees ... class Mammal The constructor is on line 11, and the destructor ison line 12 In classes, whenever an object of the class is created, the class constructor iscalled The constructor class performs

Ngày tải lên: 13/08/2014, 18:20

... CSockDlg OnAccept FUNCTION 1: void CSockDlg::OnAccept() 2: { 3: if (m_bConnected) 4: { 5: // Create a rejection socket 6: CAsyncSocket sRjctSock; 7: // Create a message to send 8: CString ... “Too many connections, try again later.”; 9: // Accept using the rejection socket 10: m_sListenSocket.Accept(sRjctSock); 11: // Send the rejection message 12: sRjctSock.Send(LPCTSTR(strMsg), ... strMsg.GetLength()); continues Trang 14L ISTING B.36 CONTINUED 13: // Close the socket 14: sRjctSock.Close();15: } 16: else 17: { 18: // Accept the connection request 19: m_sListenSocket.Accept(m_sConnectSocket);\

Ngày tải lên: 13/08/2014, 18:20

... class, 280 CArchiveException class, 671-672 cascading menus, 106 CAsyncSocket class, see sockets catch keyword, 663-664 catching exceptions, 661-666 blanket exception catch, 665catch keyword, ... You can construct aCRectobject using one of its several constructors, as shown in Table F.5. TABLEF.5 CONSTRUCTOR TYPES FOR THECRectCLASS. Constructor Definition Description CRect(const RECT& ... constructor, 331 CDocument class, 200 CDWordArray class, 700 CEditView class, 201 cell IDs (FlexGrid control), calculating, 189 CenterPoint function, 713 Trang 35CEvent class, 440CException class

Ngày tải lên: 13/08/2014, 18:20

... Line 4 declares an instance of the MFC CDatabase class CDatabase encapsulates and simplifies the code for connecting to ODBC databases Line 6 calls the Cdatabase 's OpenEx function to connect to ... some ODBC API function calls This is a code snippet only and will not compile as shown. Listing 1.4 ODBC API Function Calls 10: AFX_ODBC_CALL(::SQLExecDirect(hstmt, (UCHAR FAR*) "SELECT * ... disk to create a rudimentary database To create this application, run Visual C++ and create a new project as a Win32 console application You can call the new project anything you want Calling

Ngày tải lên: 13/08/2014, 08:20

... http://www.simpopdf.com Trang 11OnNewDocument, you can call the ADO Connection object's Open function to connect to the data source InOnCloseDocument, you can call the Connection object's Close function to close ... the connection to the data source In an MFC application, the Document object is easy to access from the other objects (particularly the MFC Viewobjects) By placing the ADO Connection object within ... decode the meaning of an HRESULT The SUCCEEDED macro on line 8 is a good example Line 7 calls the_ConnectionPtr class CreateInstance function to create an instance of an ADO Connection object

Ngày tải lên: 13/08/2014, 08:20

... procedure called from an ADO Command object The only caveat for ADO Command objects seems to be that the process of changing parameter values in the Parameters collection can be CPU intensive at the client ... write some test code and benchmark the performance for your own applications. Q Can I create Access Queries from within Visual Studio? A No, the only way to create new Queries in an Access database ... areperformed ● Consistency-All the related changes that occur as a result of the operations in the transaction mustoccur successfully The state of the database must be consistent after the transaction

Ngày tải lên: 13/08/2014, 08:20

... The class factory implements the IClassFactoryinterface, which includes the CreateInstance function COM can call the CreateInstance function to create COM objects (instances of COM server classes) ... abstract base classes that applications use to declare COM components are called COM interfaces. COM clients call Windows API functions to create instances of the (server) component classes COM clients ... msado15.dll, COM calls the class factory CreateInstance function, passing it the ADO Connection CLSID to create an instance of the ADOConnection class Finally, COM returns the pointer to the ADO Connection

Ngày tải lên: 13/08/2014, 08:20

... interprocess communication (IPC) connection with the database The interprocess communication mechanism is Teach Yourself Database Programming with Visual C++ 6 in 21 days Day 11-Multitier Architectures ... the records, using the code in lines 37 through 58 The user can edit the records' contents in the grid The user can cancel those changes by clicking the Cancel button, which executes the code ... high-level functions such as device redirection, remote file access, remote printer access, and interprocess communication ● NOTE The designers of the OSI model carefully crafted the interfaces between

Ngày tải lên: 13/08/2014, 08:21

... JIT compiler is highly optimized for compiling CIL code into highly efficient object code, runs on demand, and caches the compiled code for future use. Memory Management and Garbage Collection Proper ... illegal memory access. This ensures that an application can access only memory or other resources to which it has been explicitly granted access. This restricted environment can be thought ... using Microsoft .NET technolo- gies. Scott runs a software architecture-focused user group, speaks extensively (including at Microsoft TechEd and community-sponsored code camps), and contributes...

Ngày tải lên: 29/03/2014, 15:20

... 702 Using the Map Classes 704 Creating Custom Collection Classes 707 Using the Coordinate-Handling Classes 710 Using the CPoint Class 710 Using the CRect Class 712 Using the CSize Class 717 Using ... THE CONTROLS ON THE APPLICATION DIALOG. Object Property Setting Static Text ID IDC_STATIC Caption This is an example of a Visual C+ + Application using a number of controls. Static Text ID IDC_STATICMSG Caption ... It is a control that allows the user to type a specific amount of text, which you can capture Rich Text Edit Tab Control Custom Control Month Calendar List Control Edit Box Extended Combo Box IP...

Ngày tải lên: 04/07/2014, 15:32

... Timers 68 Placing a Clock on Your Application 68 Creating the Project and Application 68 Adding the Timer IDs 70 Starting the Clock Timer 71 Handling the Clock Timer Event 72 Adding a Second Timer ... GLANCE 147 Day 8 Adding Flash—Incorporating Graphics, Drawing, and Bitmaps 149 9 Adding ActiveX Controls to Your Application 179 10 Creating Single Document Interface Applications 199 11 Creating ... Page ii Specifying the Control Tab Order 30 Attaching Variables to Your Controls 32 Attaching Functionality to the Controls 33 Closing the Application 36 Showing the User’s Message 37 Clearing...

Ngày tải lên: 13/08/2014, 08:21

... Specify the connection to the DB SqlConnection c = new SqlConnection(…); // Open the connection c. Open(); // Specify the SQL Command SqlCommand cmd = new SqlCommand(@" SELECT ... public static string SpaceToUnderscore(this string source) { char[] cArray = source.ToCharArray(); string result = null; foreach (char c in cArray) { if (Char.IsWhiteSpace (c) ) ... Ferracchiati LINQ for Visual C# 2008 v query, ADO.NET programmers have to store the SQL in a Command object, associate the Command with a Connection object and execute it on that Connection...

Ngày tải lên: 10/12/2013, 23:15

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Ngày tải lên: 23/03/2014, 05:25

... 264 Workshop 264 viii Sams Teach Yourself Visual C# 2008 in 24 Hours 32 HOUR 2: Navigating Visual C# 2008 Using the Visual C# 2008 Start Page By default, the Visual C# 2008 Start Page shown ... Recent Projects category in the upper-left corner is used to create new projects or open projects already created. To create new projects, click the Create: Project link in the Recent Projects ... specify a name, you can cre- ate the new project either by double-clicking the icon that represents the Template type of project you want to create or by clicking the template icon once to select...

Ngày tải lên: 19/04/2014, 20:16