Delphi Programming
Register
Advertisement
This page is intended as a supplement to the official documentation on Delphi programming. CodeGear is in the process of putting the Delphi documentation on the Web. Once they have done so, this page will link to the relevant page in the official documentation.
Stub
This article is a stub.
Please help enhance the Delphi Programming Wiki by expanding it.
Info
see the VCL Documentation Guidelines for an overview on doc pages

Unit[]

Hierarchy[]

Description[]

TFileStream class is descendant of THandleStream for manipulating file data. This class introduces methods from THandleStream and some properties.

Technical Comments[]

(Known issues / Documentation clarifications / Things to be aware of)

Examples[]

To load a file name c:\mydata.dat for read access into stream and then read 4 bytes from beginning of file into a variable.

 var
   afile_st : TFileStream;
   temp_data: cardinal;
 ...
 afile_st:=TFileStream.Create('c:\mydata.dat',fmOpenRead);
 try
   //make sure file pointer is on beginning of file
   afile_st.Seek(0,soFromBeginning); 
   //read buffer
   afile_st.ReadBuffer(temp_data,4);
 finally
   afile_st.Free;
 end;

See Also[]

User Comments/Tips[]

(Please leave your name with your comment.)

Advertisement