RAD Studio VCL Reference
THandleStream Class

THandleStream enables applications to read from and write to communications resources identified by a handle.

THandleStream = class(TStream);
class THandleStream : public TStream;

Use THandleStream to access files, sockets, named pipes, mailslots, or other communications resources that provide a handle when opened. For example, the FileOpen function provides a handle for a file on disk. THandleStream allows applications to use a uniform stream interface when performing I/O using a handle. 

To avoid the overhead of managing file handles, use TFileStream to work with disk files. 


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