jiangcaijun1 / d7zip Goto Github PK
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><title>Fragment of main.html</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /><meta name="generator" content="SynEdit HTML exporter" /><style type="text/css"> <!-- body { color: #000000; background-color: #FFFFFF; } .pas1-assembler { background-color: #FFFFFF; color: #000000; } .pas1-character { background-color: #FFFFFF; color: #000080; } .pas1-comment { background-color: #FFFFFF; color: #000080; font-style: italic; } .pas1-float { background-color: #FFFFFF; color: #000080; } .pas1-hexadecimal { background-color: #FFFFFF; color: #000080; } .pas1-identifier { background-color: #FFFFFF; color: #000000; } .pas1-number { background-color: #FFFFFF; color: #000080; } .pas1-preprocessor { background-color: #FFFFFF; color: #000080; font-style: italic; } .pas1-reservedword { background-color: #FFFFFF; color: #000000; font-weight: bold; } .pas1-space { background-color: #FFFFFF; color: #000000; } .pas1-string { background-color: #FFFFFF; color: #000080; } .pas1-symbol { background-color: #FFFFFF; color: #000000; } --> </style></head> <body><blockquote><h1>7-zip Delphi API</h1></blockquote> <p>This API use the 7-zip dll (7z.dll) to read and write all 7-zip supported archive formats.</p><p>- Autor: Henri Gourvest <[email protected]><br />- Licence: MPL1.1<br />- Date: 15/04/2009<br />- Version: 1.1</p> <h2>Reading archive:</h2> <h3>Extract to path:</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormatZip) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> OpenFile(</span><span class="pas1-string">'c:\test.zip'</span><span class="pas1-symbol">);<br /> ExtractTo(</span><span class="pas1-string">'c:\test'</span><span class="pas1-symbol">);<br /> </span><span class="pas1-reservedword">end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Get file list:</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormat7z) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> OpenFile(</span><span class="pas1-string">'c:\test.7z'</span><span class="pas1-symbol">);<br /></span><span class="pas1-reservedword"> for</span><span class="pas1-space"> i := </span><span class="pas1-number">0</span><span class="pas1-space"> </span><span class="pas1-reservedword">to</span><span class="pas1-space"> NumberOfItems - </span><span class="pas1-number">1</span><span class="pas1-space"> </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword"> if</span><span class="pas1-space"> </span><span class="pas1-reservedword">not</span><span class="pas1-space"> ItemIsFolder[i] </span><span class="pas1-reservedword">then<br /></span><span class="pas1-space"> Writeln(ItemPath[i]);<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Extract to stream</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormat7z) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> OpenFile(</span><span class="pas1-string">'c:\test.7z'</span><span class="pas1-symbol">);<br /></span><span class="pas1-reservedword"> for</span><span class="pas1-space"> i := </span><span class="pas1-number">0</span><span class="pas1-space"> </span><span class="pas1-reservedword">to</span><span class="pas1-space"> NumberOfItems - </span><span class="pas1-number">1</span><span class="pas1-space"> </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword"> if</span><span class="pas1-space"> </span><span class="pas1-reservedword">not</span><span class="pas1-space"> ItemIsFolder[i] </span><span class="pas1-reservedword">then<br /></span><span class="pas1-space"> ExtractItem(i, stream, false);<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Extract "n" Items</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-reservedword">function</span><span class="pas1-space"> GetStreamCallBack(sender: Pointer; index: Cardinal;<br /></span><span class="pas1-reservedword"> var</span><span class="pas1-space"> outStream: ISequentialOutStream): HRESULT; </span><span class="pas1-reservedword">stdcall</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword"> case</span><span class="pas1-space"> index </span><span class="pas1-reservedword">of</span><span class="pas1-space"> ...<br /> outStream := T7zStream.Create(aStream, soReference);<br /> Result := S_OK;<br /></span><span class="pas1-reservedword">end</span><span class="pas1-symbol">;<br /><br /></span><span class="pas1-reservedword">procedure</span><span class="pas1-space"> TMainForm.ExtractClick(Sender: TObject);<br /></span><span class="pas1-reservedword">var<br /></span><span class="pas1-space"> i: integer;<br /> items: </span><span class="pas1-reservedword">array</span><span class="pas1-symbol">[</span><span class="pas1-number">0</span><span class="pas1-symbol">..</span><span class="pas1-number">2</span><span class="pas1-symbol">] </span><span class="pas1-reservedword">of</span><span class="pas1-space"> Cardinal;<br /></span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormat7z) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> OpenFile(</span><span class="pas1-string">'c:\test.7z'</span><span class="pas1-symbol">);<br /></span></span></code><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-comment"> // items must be sorted by index!<br /> </span></span></code><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-symbol"> items[</span><span class="pas1-number">0</span><span class="pas1-symbol">] := </span><span class="pas1-number">0</span><span class="pas1-symbol">;<br /> items[</span><span class="pas1-number">1</span><span class="pas1-symbol">] := </span><span class="pas1-number">1</span><span class="pas1-symbol">;<br /> items[</span><span class="pas1-number">2</span><span class="pas1-symbol">] := </span><span class="pas1-number">2</span><span class="pas1-symbol">;<br /> ExtractItems(@items, Length(items), false, </span><span class="pas1-reservedword">nil</span><span class="pas1-symbol">, GetStreamCallBack);<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword">end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Open stream</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormatZip) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> OpenStream(T7zStream.Create(TFileStream.Create(</span><span class="pas1-string">'c:\test.zip'</span><span class="pas1-symbol">, fmOpenRead), soOwned));<br /> OpenStream(aStream, soReference);<br /> ...<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Progress bar</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-reservedword"> function</span><span class="pas1-space"> ProgressCallback(sender: Pointer; total: boolean; value: int64): HRESULT; </span><span class="pas1-reservedword">stdcall</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">if</span><span class="pas1-space"> total </span><span class="pas1-reservedword">then<br /></span><span class="pas1-space"> Mainform.ProgressBar.Max := value </span><span class="pas1-reservedword">else<br /></span><span class="pas1-space"> Mainform.ProgressBar.Position := value;<br /> Result := S_OK;<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /><br /></span><span class="pas1-reservedword"> procedure</span><span class="pas1-space"> TMainForm.ExtractClick(Sender: TObject);<br /></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormatZip) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> OpenFile(</span><span class="pas1-string">'c:\test.zip'</span><span class="pas1-symbol">);<br /> SetProgressCallback(</span><span class="pas1-reservedword">nil</span><span class="pas1-symbol">, ProgressCallback);<br /> ...<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h3>Password</h3> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-reservedword"> function</span><span class="pas1-space"> PasswordCallback(sender: Pointer; </span><span class="pas1-reservedword">var</span><span class="pas1-space"> password: WideString): HRESULT; </span><span class="pas1-reservedword">stdcall</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"></span></span></code><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-comment"> // call a dialog box ...<br /></span></span></code><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-space"> password := </span><span class="pas1-string">'password'</span><span class="pas1-symbol">;<br /> Result := S_OK;<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /><br /></span><span class="pas1-reservedword"> procedure</span><span class="pas1-space"> TMainForm.ExtractClick(Sender: TObject);<br /></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">with</span><span class="pas1-space"> CreateInArchive(CLSID_CFormatZip) </span><span class="pas1-reservedword">do<br /></span><span class="pas1-space"> </span><span class="pas1-reservedword">begin<br /></span><span class="pas1-space"> </span><span class="pas1-comment"> // using callback<br /></span><span class="pas1-space"> SetPasswordCallback(</span><span class="pas1-reservedword">nil</span><span class="pas1-symbol">, PasswordCallback);<br /></span><span class="pas1-comment"> // or setting password directly<br /></span><span class="pas1-space"> SetPassword(</span><span class="pas1-string">'password'</span><span class="pas1-symbol">);<br /> OpenFile(</span><span class="pas1-string">'c:\test.zip'</span><span class="pas1-symbol">);<br /> ...<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span><br /></code></pre><h2>Writing archive</h2> <pre><code><span style="font-family: Courier New; font-style: normal; font-variant: normal; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adjust: none; font-stretch: normal;"><span class="pas1-reservedword"> procedure</span><span class="pas1-space"> TMainForm.ExtractAllClick(Sender: TObject);<br /></span><span class="pas1-reservedword"> var<br /></span><span class="pas1-space"> Arch: I7zOutArchive;<br /></span><span class="pas1-reservedword"> begin<br /></span><span class="pas1-space"> Arch := CreateOutArchive(CLSID_CFormat7z);<br /></span><span class="pas1-comment"> // add a file<br /></span><span class="pas1-space"> Arch.AddFile(</span><span class="pas1-string">'c:\test.bin'</span><span class="pas1-symbol">, </span><span class="pas1-string">'folder\test.bin'</span><span class="pas1-symbol">);<br /></span><span class="pas1-comment"> // add files using willcards and recursive search<br /></span><span class="pas1-space"> Arch.AddFiles(</span><span class="pas1-string">'c:\test'</span><span class="pas1-symbol">, </span><span class="pas1-string">'folder'</span><span class="pas1-symbol">, </span><span class="pas1-string">'*.pas;*.dfm'</span><span class="pas1-symbol">, true);<br /></span><span class="pas1-comment"> // add a stream<br /></span><span class="pas1-space"> Arch.AddStream(aStream, soReference, faArchive, CurrentFileTime, CurrentFileTime, </span><span class="pas1-string">'folder\test.bin'</span><span class="pas1-symbol">, false, false);<br /></span><span class="pas1-comment"> // compression level<br /></span><span class="pas1-space"> SetCompressionLevel(Arch, </span><span class="pas1-number">5</span><span class="pas1-symbol">);<br /></span><span class="pas1-comment"> // compression method if <> LZMA<br /></span><span class="pas1-space"> SevenZipSetCompressionMethod(Arch, m7BZip2);<br /></span><span class="pas1-comment"> // add a progress bar ...<br /></span><span class="pas1-space"> Arch.SetProgressCallback(...);<br /></span><span class="pas1-comment"> // set a password if necessary<br /></span><span class="pas1-space"> Arch.SetPassword(</span><span class="pas1-string">'password'</span><span class="pas1-symbol">);<br /></span><span class="pas1-comment"> // Save to file<br /></span><span class="pas1-space"> Arch.SaveToFile(</span><span class="pas1-string">'c:\test.zip'</span><span class="pas1-symbol">);<br /></span><span class="pas1-comment"> // or a stream<br /></span><span class="pas1-space"> Arch.SaveToStream(aStream);<br /></span><span class="pas1-reservedword"> end</span><span class="pas1-symbol">;<br /></span></span> </code></pre> </body></html>
An error occurs when working with large archives. The Cardinal type for the
stream size is not sufficient, Int64 fixes the problem.
var
Arch: I7zOutArchive;
Arch := CreateOutArchive(CLSID_CFormat7z);
Arch.AddStream(aStream, soReference, faArchive, CurrentFileTime,
CurrentFileTime, 'folder\test.bin', false, false);
-> error when aStream.Size > 4 GB
Original issue reported on code.google.com by [email protected]
on 10 Jan 2011 at 10:30
This unit seems to be around ~50-60% slower than JEDI's implementation, maybe
you could look into that.
Original issue reported on code.google.com by hikaritokyo
on 20 Sep 2014 at 1:01
when I create the file. zip
shows no progress and the application hangs
ex:
var
Arch: I7zOutArchive;
begin
Arch := CreateOutArchive(CLSID_CFormat7z);
Arch.AddFiles('C:\test', 'folder', '*.exe', true);
SetCompressionLevel(Arch, 5);
SevenZipSetCompressionMethod(Arch, m7BZip2);
Arch.SetProgressCallback(nil, ProgressCallback);//Here hangs the application
Arch.SaveToFile('c:\test.zip');
end;
Original issue reported on code.google.com by [email protected]
on 20 Aug 2013 at 3:53
What steps will reproduce the problem?
1. I used your example shown at progdigy related to progressbar but instead of
7zip format I tried to uncompress an ISO image
with CreateInArchive(CLSID_CFormatUdf) do
begin
OpenFile('d:\myiso.iso'); //udf iso
SetProgressCallback(nil, ProgressCallback);
ExtractTo('e:\'); //a pendrive
end;
2. If progressbar is not used, then it works as expected.
3. BTW: program becomes unresponsive.
What is the expected output? What do you see instead?
Progressbar working, but I only see error.
What version of the product are you using? On what operating system?
1.2
Please provide any additional information below.
Thanks by advance. Great component. I'm using Delphi 7.
Original issue reported on code.google.com by [email protected]
on 24 Mar 2012 at 7:38
What steps will reproduce the problem?
1. Tried to open a bzip2 archive created with 7zip. I have one item in the
archive, and i7z.NumberOfItems returns 1, but i7z.ItemPath[i] returns ''.
What version of the product are you using? On what operating system?
Using latest ver of code and tried 7z.dll included and latest (9.20).
Original issue reported on code.google.com by [email protected]
on 29 Mar 2012 at 9:17
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