addVirtual (method)
Adds a file placeholder to the archive.
Syntax
- (int)addVirtual:(NSString*)path;
public func addVirtual(_ path: String) throws -> Int32
Remarks
Use this method to add a placeholder for the entry the contents of which is to be provided on the fly from a stream or buffer.
Pass the path to the entry within the archive (e.g. Reports/report2020.csv) via the Path parameter. After the entry has been added, use PrepareFile event or Files property to tune up the type of the data source (file, stream, or memory buffer). During the actual compression, provide the contents of the entry in a stream or buffer in the BeforeCompressFile event handler.
This method returns the index of the new entry in the Files collection.