protected override void DoTaskForFile(string pPath, IVgmtWorkerStruct pZlibExtractorStruct, DoWorkEventArgs e) { ZlibExtractorStruct zlibExtractorStruct = (ZlibExtractorStruct)pZlibExtractorStruct; this.progressStruct.Clear(); if (zlibExtractorStruct.DoDecompress) { progressStruct.GenericMessage = String.Format("Decompressing <{0}>{1}", pPath, Environment.NewLine); } else { progressStruct.GenericMessage = String.Format("Compressing <{0}>{1}", pPath, Environment.NewLine); } ReportProgress(this.Progress, progressStruct); try { string outputFileName; if (zlibExtractorStruct.DoDecompress) { outputFileName = Path.ChangeExtension(pPath, CompressionUtil.ZlibDecompressOutputExtension); } else { outputFileName = Path.ChangeExtension(pPath, CompressionUtil.ZlibCompressOutputExtension); } using (FileStream fs = File.OpenRead(pPath)) { if (zlibExtractorStruct.StartingOffset > fs.Length) { throw new ArgumentOutOfRangeException("Starting Offset", "Offset cannot be greater than the file size."); } if (zlibExtractorStruct.DoDecompress) { CompressionUtil.DecompressZlibStreamToFile(fs, outputFileName, zlibExtractorStruct.StartingOffset); } else { CompressionUtil.CompressStreamToZlibFile(fs, outputFileName, zlibExtractorStruct.StartingOffset); } } this.progressStruct.Clear(); if (zlibExtractorStruct.DoDecompress) { progressStruct.GenericMessage = String.Format(" {0} decompressed.{1}", Path.GetFileName(outputFileName), Environment.NewLine); } else { progressStruct.GenericMessage = String.Format(" {0} compressed.{1}", Path.GetFileName(outputFileName), Environment.NewLine); } ReportProgress(this.Progress, progressStruct); } catch (Exception ex) { throw ex; } }