vb c and the net languages

... Members of the System.Diagnostics Namespace Process-Centric Types of the System.Diagnostics Namespace Meaning in Life The Process class provides access to local and remote processes and also ... “How can I build applications that can load (and reflect over) assemblies not referenced at compile time?” ■Source Code The MyTypeViewer project can be found under the Chapter 16 subdirectory. CHAPTER ... Merge and Split Unregistered Version - http://www.simpopdf.com CHAPTER 17 s PROCESSES,... theProc = null; try { theProc = Process.GetProcessById(987); } catch // Generic catch for used simplicity

Ngày tải lên: 12/08/2014, 23:20

... other such potential security risks? The answer, as far as the NET platform is concerned, is to make use of a NET-centric securitymechanism known as Code Access Security Using CAS, the CLR can ... evidence.■ Source Code The MyEvidenceViewer project is included under the Chapter 20 subdirectory The Role of Code Groups Using evidence, the CLR can then place the assembly into a code group Each ... offset, int count, AsyncCallback callback, object state); public virtual IAsyncResult BeginWrite(byte[] buffer, int offset, int count, AsyncCallback callback, object state); public virtual int

Ngày tải lên: 12/08/2014, 23:20

... manually create three new SqlCommand objects, each ofwhich contains a set of SqlParameter objects After this point, we could set each object to theUpdateCommand, DeleteCommand, and InsertCommand properties ... role of the data adapter type in this chapter Using this type (and therelated SelectCommand, InsertCommand, UpdateCommand, and DeleteCommand properties), the adapter can resolve changes in the DataSet ... to handle the Click event Here is the definition of the form (which does not contain error-handling logic for simplicity; feel free to add try/catch logic if you so choose): public partial class

Ngày tải lên: 12/08/2014, 23:20

... the columns and rows) are achieved by using the and elements, which contain a collection of and elements, respectively Because each cell within a grid is indeed a true NET type, you can configure ... obtaining the selected color? Determining the Current Selection for Nested Content w w w fr Assume the Click event handler for the btnGetColor Button has implemented btnGetColor_Click() to print out the ... DockPanel that contains a StackPanel) to provide for a great deal of flexibility and control Furthermore, the panel types can work in conjunction with other document-centric controls (such as the

Ngày tải lên: 12/08/2014, 23:20

... imple-menting the ICommand interface, shown here: public interface ICommand { // Occurs when changes occur that affect whether // or not the command should execute. event EventHandler CanExecuteChanged; ... www.free-ebooks-download.org Trang 9Table 29-4.The Intrinsic WPF Control Command ObjectsWPF Control Command Object Example Control Command Properties Meaning in Life ApplicationCommands Close, Copy, Cut, Delete, Find, Open, ... doing so, the menuitems automatically receive the correct name and shortcut key (for example, Ctrl+C for a cutoperation) in the menu item UI and the application is now “copy, cut, and paste”

Ngày tải lên: 12/08/2014, 23:20

... using the ASP.NET application cache As suggested by its name, the ASP.NET System.Web.Caching.Cache object (which is accessiblevia the Context.Cache property) allows you to define an object that ... from the cache (If you did see the value, the 15 seconds had already expired Either type faster or increase the amount of time the DataTable will remain in the cache.) Wait a few seconds and click ... automatically refresh data using the cache mechanism ■ Source Code The CacheState project is included under the Chapter 33 subdirectory Maintaining Session Data So much for our examination of application-level

Ngày tải lên: 12/08/2014, 23:20

... family of the C6x processors is the fixed-pointC64x An application-specific integrated circuit (ASIC) has a DSP core with customizedcircuitry for a specific application A C6x processor can be used ... B2 The MVC (moveconstant) instruction is the only instruction that can access the AMR and the othercontrol registers (shown in Appendix B) and executes only on the B side in con-junction with the ... floating-point processors C3x/C4x is not compatible with code forthe fixed-point processors C1x, C2x, and C5x/C54x However, the code for the fixed-point C62x is compatible with the code for the floating-point

Ngày tải lên: 17/10/2013, 19:15

... Each coefficient file contains 55 coefficients (except comb14.cof) 1 BS55.cof: bandstop with center frequency Fs/4 2 3 4 5 6 BP55.cof: bandpass with center frequency Fs/4 LP55.cof: lowpass with cutoff ... cascade (series) Two coefficient files, BS900.cof and BS2700.cof (on the disk), each containing 89 coefficients and designed with MATLAB, are included in the filter program NOTCH2 .c They ... reduce the sidelobes while approaching the selectivity that can be achieved with the rectangular window function The width of the mainlobe can be reduced by increasing the width of the

Ngày tải lên: 24/10/2013, 09:15

... whereas thedirect form II structure implements the poles first struc-two direct form II second-order sections in cascade The transfer function H(z), in terms of cascaded second-order transfer functions, ... However, for the other stages, the input x(n) is the outputy(n)of the preceding stage The coefficients b[i][0] and b[i][1] correspond to b1and b2, respectively;where i represents each stage The delays ... stages.The coefficient file contains the numerator coefficients, a’s (three per stage), and the denominator coefficients, b’s (two per stage) The a’s and b’s used in this book correspond to the

Ngày tải lên: 28/10/2013, 16:15

... Totest the results: 1 Select View Æ Watch Window and insert the two expressions j and out (right click on the Watch window) Click on +out to expand and view out[0] and out[1] that represent the ... of the periodicity and symmetry of thetwiddle constants to reduce the computational requirements of the FFT From the periodicity of W, and from the symmetry of W, (6.5) Figure 6.1 illustrates the ... RADIX-2The FFT reduces considerably the computational requirements of the discrete Fourier transform (DFT) The DFT of a discrete-time signal x(nT ) is - N) complex additions and N2 complex multiplications.Hence,

Ngày tải lên: 07/11/2013, 10:15

... very useful when there is uncertainty about the characteristics of a signal or when these characteristics change. DSP Applications Using C and the TMS320C6x DSK. Rulph Chassaing Copyright © 2002 ... interference are highly correlated On the other hand, the samples of the wideband signal are relatively uncorrelated The characteristics of the narrowband interference permits the estimation ... by the coefficient file bp55.cof It can be observed that this output is practically identical to the adaptive filter’s output Edit the main program to include the coefficient file BS55.cof

Ngày tải lên: 07/11/2013, 10:15

... and decision constructs, and the construction of valid code statements Chapter 4: VB 2005 Programming Constructs, Part II Here you will complete your examination of basic coding constructs The ... this chapter, however, is to acquaint you with a number of NET- centric building blocks, such as the common language runtime (CLR), Common Type System (CTS), Common Language Specification (CLS), and ... is to acclimate you to the core aspects of the NET platform, the NET type system, and various development tools (many of which are open source) used during the construction of NET applications...

Ngày tải lên: 03/06/2014, 01:42

... 2005 conversion functions Table 3-7 VB 2005 Conversion Functions Conversion Function Meaning in Life CBool CByte CChar CDate CDbl CDec CInt CLng CObj CSByte CShort CSng CStr CUInt CULng CUShort Converts ... our application Figure 3-6 The System.Console type in action ■ Source Code The BasicConsoleIO project is located under the Chapter subdirectory The System Data Types and VB 2005 Shorthand Notation ... to the system directory UserName Returns the name of the user that started this application ■ Source Code The FunWithMain project is located under the Chapter subdirectory The System.Console Class...

Ngày tải lên: 12/08/2014, 23:21

... Select each of them (via a Ctrl+left click) and click the OK button Visual Studio 2005 responds by copying each file into the current project Once you have done so, compile your current application ... exception classes end with the “Exception” suffix; in fact, this is a NET best practice) ' This custom exception describes the details of the car-is-dead condition Public Class CarIsDeadException ... place If this is the case, the caller’s catch logic can make use of the InnerException property to extract the details of the inner exception object The Finally Block A Try/Catch scope may also define...

Ngày tải lên: 12/08/2014, 23:21

... allow the client to add a method to the delegate’s invocation list In concept, these methods are similar to the Connect() and Disconnect() methods we created during the EventInterface example Of course, ... sinks to car myCar.Connect(sink) myCar.Connect(otherSink) ' Speed up (this will trigger the events) For i As Integer = To myCar.Accelerate(20) Next ' Detach from first sink myCar.Disconnect(sink) ... this is not the case in traditional callback functions, and, as you may suspect, can therefore be a frequent source of bugs, hard crashes, and other runtime disasters Nevertheless, callbacks are...

Ngày tải lên: 12/08/2014, 23:21

... this is not the case, click the Other button and navigate to the location of the client program you wish to configure For this example, select the CSharpCarClient.exe application created earlier ... reference to SharedCarLibClient.exe by right-clicking the Applications node Once you do, expand the plus sign (+) icon and select the Configured Assemblies subnode From here, click the Configure ... that client application directories not need to contain specific *.config files Rather, the CLR will read the current manifest and attempt to find the requested version in the GAC However, if the...

Ngày tải lên: 12/08/2014, 23:21

... exactly one COM class, ComCalc, which is marked using the coclass (i.e., COM class) keyword The Role of the [default] Interface According to the laws of COM, the only possible way in which a COM ... is the case, it should be clear that you cannot run the tlbimp.exe utility in the first place For these rare occurrences, you can access classic COM types using NET reflection services The process ... VB 6.0, the default interface is completely hidden from view However, when you write the following VB 6.0 code: ' VB 6.0 COM client code Dim c As ComCalc Set c = New ComCalc ' [default] _ComCalc...

Ngày tải lên: 12/08/2014, 23:21

... of the NET delegate type is the fact that the logic used to invoke remote methods asynchronously is identical to the process of local method invocations ■ Source Code The AsyncWKOCarProviderClient ... when the Form receives focus as the active window on the desktop The logical counterpart to the Activated event is (of course) Deactivate, which fires when the Form loses focus as the active ... each Form is composed of two * .vb files Right-click the MainForm .vb icon and select View Code Here you will see a class type that will contain all of the Form’s event handlers, custom constructors,...

Ngày tải lên: 12/08/2014, 23:21