IWMDMOperation interface (mswmdm.h)
This optional, application-implemented IWMDMOperation interface allows the application to control how data is read from or written to the computer during a file transfer.
Inheritance
The IWMDMOperation interface inherits from the IUnknown interface. IWMDMOperation also has these types of members:
Methods
The IWMDMOperation interface has these methods.
| IWMDMOperation::BeginRead The BeginRead method indicates that a "read from device" action is beginning. Windows Media Device Manager only calls this method if the application calls IWMDMStorageControl::Read and passes in this IWMDMOperation interface. |
| IWMDMOperation::BeginWrite The BeginWrite method indicates that a "write to device" action is beginning. Windows Media Device Manager only calls this method if the application calls IWMDMStorageControl/2/3::Insert/2/3 and passes in this interface. |
| IWMDMOperation::End The End method indicates that a read or write operation is finished, whether successful or not, and it returns a completion code. |
| IWMDMOperation::GetObjectAttributes The GetObjectAttributes method allows the application to specify attributes for an object being written to a device. Windows Media Device Manager calls this method before a file is written to the device in order to learn the file's attributes. |
| IWMDMOperation::GetObjectName Windows Media Device Manager calls GetObjectName before an object is written to the device in order to know what it should be named on the device. |
| IWMDMOperation::GetObjectTotalSize Windows Media Device Manager calls GetObjectTotalSize before a file is written to the device in order to retrieve the total size of the object, in bytes. |
| IWMDMOperation::SetObjectAttributes The SetObjectAttributes method specifies the file attributes. This method is currently not called by Windows Media Device Manager. |
| IWMDMOperation::SetObjectName The SetObjectName method assigns a name to the content being read or written. This method is currently not called by Windows Media Device Manager. |
| IWMDMOperation::SetObjectTotalSize The SetObjectTotalSize method assigns the total size in bytes of an object. This method is currently not called by Windows Media Device Manager. |
| IWMDMOperation::TransferObjectData The TransferObjectData method is called to allow the application to transfer a block of data to or from the computer. |
Requirements
| Requirement | Value |
|---|---|
| Target Platform | Windows |
| Header | mswmdm.h |