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(DataFlex) Remove a File from a .zipDemonstrates how to remove a file from a .zip. Note: This example requires Chilkat v11.0.0 or greater.
Use ChilkatAx-win32.pkg Procedure Test Boolean iSuccess Handle hoZip String sCharset Handle hoZip2 Variant vEntry Handle hoEntry Move False To iSuccess // This requires the Chilkat Zip API to have been previously unlocked. // See Unlock Chilkat Zip for sample code. // First prepare a .zip and write it.. Get Create (RefClass(cComChilkatZip)) To hoZip If (Not(IsComObjectCreated(hoZip))) Begin Send CreateComObject of hoZip End Get ComNewZip Of hoZip "qa_output/abc.zip" To iSuccess // Add some files.. Move "utf-8" To sCharset Get ComAddString Of hoZip "a.txt" "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" sCharset To iSuccess Get ComAddString Of hoZip "b.txt" "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" sCharset To iSuccess Get ComAddString Of hoZip "c.txt" "cccccccccccccccccccccccccccccccccccc" sCharset To iSuccess // Write to qa_output/abc.zip // This .zip contains three files: a.txt, b.txt, and c.txt Get ComWriteZipAndClose Of hoZip To iSuccess // ------------------------------------------------------------------- // Open abc.zip, remove an entry, and re-write. Get Create (RefClass(cComChilkatZip)) To hoZip2 If (Not(IsComObjectCreated(hoZip2))) Begin Send CreateComObject of hoZip2 End Get ComOpenZip Of hoZip2 "qa_output/abc.zip" To iSuccess Get Create (RefClass(cComChilkatZipEntry)) To hoEntry If (Not(IsComObjectCreated(hoEntry))) Begin Send CreateComObject of hoEntry End Get pvComObject of hoEntry to vEntry Get ComEntryOf Of hoZip2 "b.txt" vEntry To iSuccess If (iSuccess <> False) Begin Get pvComObject of hoEntry to vEntry Get ComDeleteEntry Of hoZip2 vEntry To iSuccess End // Write the modified .zip back to "abc.zip" Get ComWriteZip Of hoZip2 To iSuccess // To write to a different filename, change the FileName.. Set ComFileName Of hoZip2 To "qa_output/ac.zip" Get ComWriteZipAndClose Of hoZip2 To iSuccess Showln "success." End_Procedure |
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