This function retrieves from source control each of the specified files with no user interaction.
The source control plug-in implementation of this function is expected to return one of the following values:
Operation completed successfully.
A background retrieval is already in progress (the source control plug-in should return this only if it does not support simultaneous batch operations).
Operation was canceled before being completed.
This function is always called on a thread different from the one that loaded the source control plug-in. This function is not expected to return until it is done; however, it can be called multiple times with multiple lists of files, all at the same time.
The use of the dwFlags argument is the same as the SccGet Function.