Windows Xp 32 Bits Iso Descargar
Emmanuelle Riker
BITS gives you control over transfer operations. You can specify what your cost requirements are to enable transfers on expensive (roaming) networks and the priority of each download or upload. You can set a transfer to be a foreground priority transfer and have the transfer happen right away or set your transfer to be a low priority transfer and be extra nice to your user. See -us/windows/desktop/Bits/best-practices-when-using-bits for BITS best practices.
An enterprise IT department might have a preference about how much bandwidth to allocate to background transfers at different times of the day or might want to control how long a transfer is allowed to take. BITS has rich Group Policy and MDM policies for just these scenarios. See -us/windows/client-management/mdm/policy-csp-bits for more details on controlling BITS with MDM and -us/windows/desktop/Bits/group-policies for the available Group Policies.
Type in a URL to download. The Local file field will be automatically updated with a potential download filename taken from the segments portion of the URL. When you tap OK, a BITS job will be created, the remote URL and local file will be added to the job, and the job will be resumed. The job will then automatically download as appropriate and will be switched to a final state at the end.
To have your program download a file with BITS, you need to create a BITS manager, create a job, add the URL and the local file names, and then resume the job. Then you need to wait until the file is done transferring and then complete the job. These steps are shown in this snippet.
You have to resume the job at the start because all jobs start off suspended, and you have to complete the job so that BITS removes it from its internal database of jobs. The full life cycle of a BITS job is explained at -us/windows/desktop/Bits/life-cycle-of-a-bits-job.
In this sample, the .NET code uses .NET wrappers for the BITS COM interfaces. The wrappers are in the generated BITSReference DLL files. The BITSReference DLL files are created using the MIDL and TLBIMP tools on the BITS IDL (Interface Definition Language) files. The IDL files, MIDL and TLBIMP are all part of the Windows SDK. The steps are fully defined in the BITS documentation at -us/windows/desktop/Bits/bits-dot-net.
The sample uses several different versions of the BITSReference DLL files. As the numbers increase, more features are available. The 1_5 version is suitable for running on Windows 7 SP1; the 5_0 version is usable in all versions of Windows 10.
The BITS IBackgroundCopyManager interface is the universal entry point into all the BITS classes like the BITS jobs and files. In the sample BITS Manager program, a single _mgr object is created when the main window loads in MainWindow.xaml.cs.
The _mgr object type is an IBackgroundCopyManager interface; that interface is implemented by the BackgroundCopyManager1_5 class. Each of the different BITS reference DLL versions have classes whose name includes a version number. For example, the BITS 10.2 reference DLL calls the class BackgroundCopyManager10_2. Only the class names are changed; the interface names are the same.
In the code, the dlg variable is a CreateNewJobWindow dialog that pops up a window that lets you enter in the job name and job properties. Once a job is created (with _mgr.CreateJob), the dialog has a SetJobProperties method to fill in the job property values. You must specify in the code that jobId and job are both out parameters.
BITS jobs are always on a per-account basis; this means that when a single user has several programs that all use BITS, all of the jobs from all of the programs will be displayed. If you need to write a program that makes some BITS jobs and sometime later modifies them (for example, to complete them), you should keep track of the job GUID values.
BITS has several ways to let you know when a job is modified or complete. The easiest notification mechanism is to call Job.SetNotifyInterface(IBackgroundCopyCallback callback). The callback object needs to implement the IBackgroundCopyCallback interface; that interface has three methods that you will need to implement.
In the sample code, the QuickFileDownloadWindow.xaml.cs file demonstrates how to use the IBackgroundCopyCallback interface. The UI of the sample code is updated by the main polling loop but could have been updated by the callbacks.
You can also register a command line for BITS to execute when the file is transferred. This lets you re-run your program after the transfer is complete. See the BITS IBackgroundCopyJob2::SetNotifyCmdLine() method for more information.
In the sample code, the FileDetailViewControl.xaml.cs OnOpenFile() method gets the local name of the file and then uses the .NET System.Diagnostics.Process.Start() method to have the operating system open the file with the appropriate program.
For example, when you make a job object with the IBackgroundCopyManager.CreateJob() method, the resulting job is always a version 1.0 job. To make a newer version, use a .NET cast to convert from an older type object to a newer type object. The cast will automatically call a COM QueryInterface as appropriate.
There are plenty more features of BITS for you to use. Complete details are in the docs.microsoft.com documentation. The BITS Manager sample is available as a downloadable executable in the releases link on GitHub. The complete source code is also available including the BITSReferenceDLL files that it uses. Help for using the BITS Manager and to explain the source code organization is in the BITS-Manager GitHub Wiki.
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