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34 lines
738 B
ObjectPascal
34 lines
738 B
ObjectPascal
Program ex17;
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{ Program to demonstrate the TStream.Seek method }
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Uses Objects;
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Var L : String;
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Marker : Word;
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P : PString;
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S : PDosStream;
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begin
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L:='Some constant string';
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{ Buffer size of 100 }
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S:=New(PDosStream,Init('test.dat',stcreate));
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Writeln ('Writing "',L,'" to stream.');
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S^.WriteStr(@L);
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Marker:=S^.GetPos;
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Writeln ('Set marker at ',Marker);
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L:='Some other constant String';
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Writeln ('Writing "',L,'" to stream.');
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S^.WriteStr(@L);
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S^.Close;
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S^.Open (stOpenRead);
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Writeln ('Size of stream is : ',S^.GetSize);
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Writeln ('Seeking to marker');
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S^.Seek(Marker);
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P:=S^.ReadStr;
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L:=P^;
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DisposeStr(P);
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Writeln ('Read "',L,'" from stream.');
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S^.Close;
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Dispose (S,Done);
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end. |