JVCL Help:TJvCABFile.OnStartFileExtraction
JVCL Help: TJvCABFile.OnStartFileExtraction Event
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Occurs before extracting a file from the cabinet file.
Pascal
TOnExtractFile = procedure (Sender: TObject; FileName: string; DestPath: string) ofobject;
propertyOnStartFileExtraction: TOnExtractFile;
Parameters
| Parameters | Description |
| DestPath | Represents the full path and file name where extracted file information will be stored. |
| FileName | The full path and file name for the member to be extracted from the cabinet file. |
| Sender | Object context for the event notification. Generally contains the TJvCABFile instance to be signaled from the callback function. |
Description
OnStartFileExtraction is a TOnExtractFile property that represents the event handler signaled prior to extracting a specified file from the cabinet file. OnStartFileExtraction is signaled in the internal extract callback function when the SPFILENOTIFY_FILEINCABINET notification is received, and the output file name has been constructed using the destination path and file name in the cabinet file. OnStartFileExtraction can be used to perform updates prior to performing the file operation for the selected file in the cabinet file. Applications must assign a procedure to the event handler to allow responding to the event notification.
See Also
TJvCABFile.ExtractFile, TJvCABFile.ExtractAll, TJvCABFile.OnFileExtracted
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