System.ZLib.TZDecompressionStream.Read
Delphi
function Read(var buffer; count: Longint): Longint; override;
C++
virtual System::LongInt __fastcall Read(void *buffer, System::LongInt count)/* overload */;
inline System::LongInt __fastcall Read(System::Sysutils::TBytes Buffer, System::LongInt Offset, System::LongInt Count){ return System::Classes::TStream::Read(Buffer, Offset, Count); }
inline System::LongInt __fastcall Read(System::Sysutils::TBytes &Buffer, System::LongInt Count){ return System::Classes::TStream::Read(Buffer, Count); }
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.ZLib.pas System.ZLib.hpp |
System.ZLib | TZDecompressionStream |
Description
Reads a block of data from the input stream, decompresses it, and stores it in the supplied buffer.
The buffer parameter is the destination for the decompressed data.
The count parameter specifies the size of the destination buffer. The Read operation ends when the destination buffer is full, or when there are no more bytes available to be read from the input stream.
After reading a block of data, the OnProgress event is fired by the object. This gives you a chance to update a user interface control such as a progress indicator during a long Read operation.
The result of the Read operation is the number of decompressed bytes placed into the destination buffer.