apos graphics programming with gdi apos

... does graphics programming for Windows." —Min Liu, Software Design Engineer of GDI+, Microsoft Corporation "Graphics Programming with GDI+ explores and exploits a wonderful range of GDI+ programming ... requirement Basics of graphics programming: A basic understanding of graphics programming is a plus but is not mandatory. GDI programming experience: Experience with GDI programming is a plus ... Programming in GDI+ is the most in-depth treatment available on writing effective graphics applications for the NET Framework. [ Team LiB ] Trang 3 Copyright Praise for Graphics Programming with...

Ngày tải lên: 12/08/2014, 19:20

... drawing surface Every form has a Graphics object associated with it, which provides the drawing functionality In the NET Framework, the Graphics class represents a GDI+ Graphics object, which defines ... provides the CreateGraphics method, which returns a Graphics object The following code snippet creates a Graphics object using the CreateGraphics method and calls a method of the Graphics class: ... This Trang 11example creates a Graphics object using the Graphics.FromHwnd method and returns the graphics surface for a form The Graphics.FromHwnd method creates a Graphics object from a window...

Ngày tải lên: 12/08/2014, 19:20

... Image.FromFile("Rose.jpg"); Graphics g = Graphics.FromImage(img); // Do something g.Dispose(); Trang 5Make sure you call the Dispose method of the Graphics object when you're finished with it FromHdc creates a Graphics ... we discussed earlier, an application can use Graphics class members to get a Graphics object The Graphics class provides three methods to create a Graphics object: FromHwnd, FromHdc, and FromImage ... the state of a Graphics object to the state represented by a GraphicsState object Takes GraphicsState as input, removes the information block from the stack, and restores the Graphics object...

Ngày tải lên: 12/08/2014, 19:20

... 4.32 shows the modified version of GDI+Painter without any objects Figure 4.32 GDI+Painter with pen and brush support Transparency is a component of the color in GDI+ In the NET Framework library, ... rectangles, and ellipses drawn with different sizes and transparency.Figure 4.33 GDI+Painter in action 4.6.1 Improvements in GDI+Painter You can improve the functionality of the GDI+Painter application ... an example: Graphics g = this.CreateGraphics(); // YOUR CODE HERE // Dispose of GDI+ objects g.Dispose(); Note To test code from this chapter, we will create a Windows application with code written...

Ngày tải lên: 12/08/2014, 19:20

... of a Graphics object to AntiAlias, all graphics objects attached to that Graphics object will be anti-aliased A graphics container is a temporary graphics object that acts as a canvas for graphics ... anti-aliasing; that of graphics container B is set to high quality Graphics container C is a nested container within graphics container A, with interpolation mode set to high.Before we discuss graphics containers ... let's take a look at graphics states.9.3.1 Understanding Graphics States During the life cycle of a Graphics object, the object maintains a list of graphics states These graphics states fall...

Ngày tải lên: 12/08/2014, 19:20

... System.EventArgs e) Trang 7 // Create a Graphics object Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create a GraphicsPath object GraphicsPath path = new GraphicsPath(); // Add an ... specific item of a Graphics object The best example of local transformation is transforming a graphics path The Translate method of the GraphicsPath class translates only the items of a graphics path ... object with the Translate transformation The MultiplyTransform method multiplies the Matrix object by the world coordinates of the Graphics object, translating all graphics items drawn by the Graphics...

Ngày tải lên: 12/08/2014, 19:20

... form, depending on the Graphics object If we pass Form.Graphics, the DrawGraphicsItems method will draw graphics objects on the form, but if we pass PrintPageEventArgs.Graphics, this method will ... parameter to DrawGraphicsItems.Listing 11.32 The PrintPage event handler private void pd_Print(object sender, PrintPageEventArgs ppeArgs) { DrawGraphicsItems(ppeArgs.Graphics); } The DrawGraphicsItems ... The second method, PrintGraphicsItemsHandler, simply calls the draw and fill methods of PrintPageEventArgs.Graphics Listing 11.25 Printing graphics items private void PrintGraphicsItems_Click(object...

Ngày tải lên: 12/08/2014, 19:20

... objects The only difference is that this code uses a graphics path.Listing 13.12 Using a graphics path to draw graphics objects Graphics g = this.CreateGraphics(); g.Clear(this.BackColor); // Create ... statements with a single graphics path drawing statement But graphics paths have some limitations For example, we can't draw each element (line, rectangle, or an ellipse) of a graphics path with a ... that are appreciated by GDI developers are not available in GDI+, such as raster operations However, all is not lost GDI+ interoperability provides a way to interact with GDI in managed applications,...

Ngày tải lên: 12/08/2014, 19:20

... Pragma header was used with the value no-cache to tell caching proxies and clients not to cache the document Under HTTP 1.1, the Cache-Control header supplants Pragma, with several caching directives ... can use the IfModified-Since header with the GET method When using this option, the client requests the server to send the requested information associated with the URL only if it has been modified ... document If the document is newer, the server will send it along with a 200 (OK) code Servers may also include a Last-Modified header with the document, to let the user know when the last change...

Ngày tải lên: 17/10/2013, 19:15

... LogIn form with four columns; user_name, pass_word, faculty_id, and student_id from the LogIn table In fact, we only fi ll two textbox controls on the form, txtUserName and txtPassWord, with two ... SelectionForm window All information in the ComboBox control is associated with a form window Furthermore it is associated with a group of data stored in a data table in the database The operation ... Recall that there are multiple course_id with the same faculty_id in this Course table when we built our sample database in Chapter 2 Those multiple records with the same faculty_id are distinguished...

Ngày tải lên: 17/10/2013, 19:15

... figure out which headers to use, the parameters with each header, and special cases like dealing with HTTP version differences and URL redirections With the socket library, you do all of this on ... careful about what you say; if it's not fully compliant with the HTTP specs, the web server won't understand you! Perhaps your web client works with one web server but not another Or maybe your web ... connection associated with that socket on a specified remote host and port The server uses the accept( ) call to intercept the incoming connection and initiate communication with the client Now...

Ngày tải lên: 20/10/2013, 10:15

... to the web server you specify This allows you to do things like HTML form postings with POST, or a file upload with PUT, and selectively look at the results At this point, it's really all up to ... using web client software Most of these issues are automatically handled by LWP, but when programming directly with sockets, you have to take care of them yourself How does your client handle tag ... shcat, a shell utility that accepts methods, headers, and entity-body data from standard input With this program, you can write shell scripts that specify different methods, custom headers, and...

Ngày tải lên: 20/10/2013, 10:15

... using the runtime objects with general data query methods and (2) data query using runtime objects with the LINQ to SQL method LINQ to SQL is a new technique available with Visual Studio 2008, ... The user - defi ned method FillCourseTable() will be called with the fi lled table as the argument to fi ll the CourseList box control with the course_id on the Course form K Otherwise, if this ... data, the user - defi ned method FillCourseReader() is executed with the DataReader as the argument to fi ll the CourseList box control with the course_id on the Course form window O An error message...

Ngày tải lên: 20/10/2013, 11:15

... Selection Query with Visual C#.NET C If the user selected the first method, LINQ to SQL method, a standard LINQ query structure is adopted with an implicit typed local variable f_info with a data ... user - defi ned methods, such as BuildCommand() and FindName(), are identical with those methods in the Student form without any modifi cation. For your convenience, we show the other two user - ... XE R2) is an entry-level, small-footprint starter database with the following advantages: 406 Chapter 5 Data Selection Query with Visual C#.NET • Free to download and install on your local...

Ngày tải lên: 20/10/2013, 11:15

... 2124, Introduction to C# for the Microsoft NET Platform Programming experience with Visual Basic NET or Visual C# Course 2373, Programming with Microsoft Visual Basic NET or Course 2124, Introduction ... SQL Server 2000 with Transact-SQL Development experience using the Microsoft Visual Studio NET development environment and the Microsoft NET Framework Course 2373, Programming with Microsoft ... Released: 02/2002 Delivery Guide Programming with Trang 2Information in this document, including URL and other Internet Web site references, is subject to change without notice Unless otherwise...

Ngày tải lên: 22/10/2013, 16:15

... dereference the array within the list with: Trang 9Expanding Relative URLs From the previous example, the links from showlink printed out the hyperlinks exactly as they appear within the HTML But ... routines within the LWP library  At the end of the chapter, we'll present some examples that glue together the different components of LWP Some Simple Examples LWP is distributed with a very ... that are useful for client programming The LWP Module The LWP module, in the context of web clients, performs client requests over the network There are 10 classes in all within the LWP module,...

Ngày tải lên: 24/10/2013, 08:15

... a scalar $r->code([$code]) Trang 2When invoked without any parameters, the code( ) method returns the object's response code When invoked with a status code as the first parameter, code( ) ... $r->message([$message]) Not to be confused with the entity-body of the response This is the human-readable text that a user would usually see in the first line of an HTTP response from a server With a response code ... "OK" or "Document follows." When invoked without any parameters, the message( ) method returns the object's HTTP message When invoked Trang 3with a scalar parameter as the first parameter,...

Ngày tải lên: 24/10/2013, 08:15

... Oracle Package to build this query Trang 17Chapter 6Data Inserting with Visual C # NET Practical Database Programming With Visual C#.NET, by Ying Bai Copyright © 2010 the Institute of Electrical ... clearly with the fi eld < string > and the column ’ s name as the position for each of them P The DataSet is cleaned up after this query This operation is important and necessary Without ... OracleCommand class to execute the data query with dynamic parameters to three kinds of databases • Use the OleDbDataAdapter to fi ll a DataSet and a DataTable object with three kinds of databases •...

Ngày tải lên: 24/10/2013, 09:15

... Trang 2474 Chapter 6 Data Inserting with Visual C#.NET Let ’ s take a look at this piece of code to see how it works A First, we create a string array CourseInfo with the upper bound of 6, which ... dialog box Trang 6478 Chapter 6 Data Inserting with Visual C#.NETcodes we developed in the previous section for this method have been highlighted with shading Let ’ s take a look at this piece ... 6.30 Of course, you can modify this order to make it identical with the order in the Trang 14dif-486 Chapter 6 Data Inserting with Visual C#.NETInsertCourse() query function if you like However,...

Ngày tải lên: 24/10/2013, 09:15

... Positioning the various elements within the pageOnce you have looked at the overall layout of the page in this chapter, see Chapter 10 for some more specific issues of design within the page, such as ... you wantthem to come back regularly, you are going to have to provide them with an incentive to come back The problem with keeping content fresh is that it takes a lot of time, and someone has ... account the limited width of a browser window (as discussed earlier).The key difference with this approach (compared with the liquid designs) is that the designer has muchgreater control over the layout...

Ngày tải lên: 24/10/2013, 12:15