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30 lines
715 B
ObjectPascal
30 lines
715 B
ObjectPascal
Program ex16;
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{ Program to demonstrate the TStream.Truncate method }
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Uses Objects;
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Var L : String;
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P : PString;
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S : PDosStream; { Only one with Truncate implemented. }
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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 with handle ',S^.Handle);
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S^.WriteStr(@L);
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S^.WriteStr(@L);
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{ Close calls flush first }
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S^.Close;
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S^.Open (stOpen);
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Writeln ('Size of stream is : ',S^.GetSize);
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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 with handle ',S^.Handle);
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S^.Truncate;
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Writeln ('Truncated stream. Size is : ',S^.GetSize);
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S^.Close;
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Dispose (S,Done);
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end. |