(DataFlex) Uncompress a Gzip File to a Specific Output File

See more Gzip Examples

This example demonstrates how to use the UncompressFile method to decompress a Gzip (.gz) file and write the uncompressed data to a specified output file.

The method reads the compressed input file and writes the decompressed contents to the output path provided. The output filename is explicitly specified by your application and does not depend on the filename embedded within the Gzip file.

This provides full control over where and how the decompressed file is created.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoGzip
    String sGzPath
    String sOutPath
    String sTemp1

    Move False To iSuccess

    // This example demonstrates how to uncompress a Gzip (.gz) file
    // and write the uncompressed output to a specified file.

    Get Create (RefClass(cComChilkatGzip)) To hoGzip
    If (Not(IsComObjectCreated(hoGzip))) Begin
        Send CreateComObject of hoGzip
    End

    // The input Gzip file and output file:
    Move "example.txt.gz" To sGzPath
    Move "output.txt" To sOutPath

    // Uncompress the file:
    Get ComUncompressFile Of hoGzip sGzPath sOutPath To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoGzip To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "Gzip file successfully uncompressed."
    Showln "Output file: " sOutPath


End_Procedure