Used internally This holds temporarily the compressed size if a stream and it's MD5 checksum. The compressed size of a stream The TMD5Digest of the original uncompressed stream. Used to store the list of files to be compressed Add a File to be compressed Should be a fully qualified filename. Stored in the archive as just the filename without paths. To set a releative path for the file use AddPath. The index of the filename in the list Fully qualified FileName to be added Adds a FileName and a relative path Index of added file name in the list Fully qualified filename to be compressed Relative path to be decompressed to Used to insert a file to be compressed into the list at a specific index Deletes the filename at index from the list Index of the filename to be removed Removes all files from the list of files to be compressed Number of files in the list to be compressed Zero based so to do a loop using Count you must do Count-1 The number of files in the list Used to retrieve the fully qualified filename that is to be compressed Index of the filename you wish to retrieve the FileName from. Used to retrieve the releative path the file should be extracted to Index of the filename you wish to retrieve the relative path from. Used internally to obtain the compressed size of the file Only usefull after the file has been compressed Index of the filename you wish to retrieve the TFileInfo from. The information at the beggining of a TZlibArchive Contains vital information about the archive. Major Minor and Micro hold the version of the archive. The file identifier The first four bytes of the file. Z A R #0. Used to verify the type of file. Length of the table of contents. Used internally to be able to determine the lenght of the TOC Checksum of the uncompressed TOC The table of contents is stored compressed in the archive. This is used to ensure that the TOC is intact. The structure of a table of contents entry Used to manage various information about the size and position of a file in the TZlibArchive The file name only This contains no path information. The desired relative path for the file to be extracted to. The position of the compressed stream in the TZLibArchive stream. The size of a compressed file The checksum used to verify the file is the same as the original Callback used to follow the progress of overall and current progress Used to provide feedback to the user of the progress of compression. TZlibWriteArchive Object Index of the current file that is being compressed. Total size of the InStream to be compressed Amount of the InStream that has been compressed. Callback for progress during decompression TZlibReadArchive object Total size of the InStream Current position of the InStream Error Callback Used to catch error before an exception is raised. TZlibReadArchive or TZlibWriteArchive object Error code that has occured Set to 0 to avoid an exception Description of the error. Object used to create ZibArchive files. Creates an instance of the TZlibWriteArchive object Compresses and write all the files in the list to OutStream The Stream is written to starting from the beginning. The Previos contents of the stream are lost. True if successful False otherwise Callback used to intercept errors before an exception is raised Callback used to imform the user of the compression progress Stream the compressed archive it written to If this is not assigned a TMemoryStream is automatically created and assigned to OutStream. List of files to be compressed Object to read and extract files made with TZLibWriteArchive A TZlibReadArchive object is not capable of writing or changing an archive. You must use a TZLibWriteArchive object to do that. Creates a TZlibReadArchive object and opens an archive from a TStream Creates an instance of the object Stream that you wish to be opened Extract the file at Index to a user provided stream Index of the file to be extracted User provided stream for the compressed file to be decompressed into Retrieves the header of the file Contains information about the file in the archive Index of the file you want information about Number of files in the archive Callback to intercept errors before they trigger an Exception Callback used to monitor the progress of a file as it is being extracted TStream that is currently loaded Set to nil to close the file Error Code The table of contents has been corrupted. A MD5 checksum is made before the TOC is compressed. If the checksum of the extracted TOC does not match this error occurs. Error Code The file you are trying to open does not have the correct header, or is not a recognized file format. Error Code The file you are trying to compress does not match the checksum of the original file before it was compressed. Compresses InStream into OutStream Generic independant function to compress InStream into OutStream. The size of the compressed stream in bytes The TStream that you wish to be compressed InStream is read from the begining of InStream. The compressed stream OutStream is written to from the current position of OutStream.Position. Decompresses InStream to OutStream Decompresses InStream to OutStream. The Size of OutStream in bytes The Stream that you wish to compress InStream is read from position 0 to the end. The stream that the decompressed data will be written into OutStream is written to at the current position it happens to be in the stream. Creates a TMD5Digest from a TMemoryStream Use this to create a TMD5Digest from a Stream. This is used to ensure that a file matches in every way by comparing it to a previous TMD5Digest. Returns a TMd5Digest The stream you wish to be scanned