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For instance, the primary difference between most Clipboard and drag-and-drop transfers is in how the data object arrives at the target.
Once the target has a pointer to the data object's IDataObject interface, the procedures for extracting information are largely the same for both types of data transfer. However, some of the scenarios are limited to a specific type of operation.
Refer to the individual scenario for details. General Guidelines Each of the following sections discusses a single, fairly specific data transfer scenario. However, data transfers are often more complex and might involve aspects of several scenarios.
You typically do not know, in advance, which scenario you will actually need to handle. Here are a few general guidelines to keep in mind. Each format you want to use must be registered by calling RegisterClipboardFormat.
The formats in the data objects are provided in the order of preference from the source. Enumerate the data object and pick the first one you can consume. Include as many formats as you can support.
You generally do not know where the data object will be dropped. This practice improves the odds that the data object will contain a format that the drop target can accept. This approach allows the target to create a file from a data object without needing to know anything about the underlying data storage.
You should normally present the data as an IStream interface. This data transfer mechanism is more flexible than a global memory object and uses much less memory. Data objects for items can be acquired through either the IShellFolder:: Use standard feedback cursors.
Support left and right drag. Use the data object itself from an embedded object. This approach allows your application to retrieve any extra formats the data object has to offer and avoids creating an extra layer of containment.
C should create an embedded object of server A, not an embedded object of server B containing an embedded object of server A. Remember that the Shell might use optimized moves or delete-on-paste operations when moving files.
Your application should be able to recognize these operations and respond appropriately. Implement and register an OLE drop target. Avoid using Windows 3.
The formats contained by a data object vary, depending on where the object comes from. Since you generally do not know in advance where a data object comes from, do not assume that a particular format will be present. The data object should enumerate the formats in order of quality, starting with the best.
Thus, to get the best available format, applications normally enumerate the available formats and use the first format in the enumeration that they can support. You can customize the drag shortcut menu by creating a drag-and-drop handler.
The source normally implements an IStream interface to present data from its storage as a file. A user selects one or more files in Windows Explorer and copies them to the Clipboard.Can use wide range of physical link types.
Used as an intermediate link to connect to the internet, and as base link for virtual private networks (VPN). Multimedia support. I spent at the Computer Science Department at Cornell University as a post-doc, in Ken Birman’s group.
Ken is credited with inventing the group communication paradigm, especially the Virtual Synchrony model. What are the main advantages of ATM technology, and how does EoATM work?
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Copyright © Verilab & DVCon - 1 - DVCon Pragmatic Simulation-Based Verification of Clock Domain Crossing Signals and Jitter using SystemVerilog Assertions. Asynchronous Transfer Mode (ATM) A high-speed, broadband transmission data communication technology based on packet switching, which is used by telcos, long distance carriers, and campus-wide backbone networks to carry integrated data, voice, and video information.