public bool extract(string archiveName, uint fileNumber, string arcType, ProgressBar progress, Label status)
{
Program.form.waitForFreeMemory(status);
attachedProgressBar = progress;
attachedStatus = status;
status.Text = "Extracting File " + this.extracting_file;
progress.Maximum = 1;
progress.Value = 0;
Application.DoEvents();
bool flag = false;
KnownSevenZipFormat format = this.stringToSevenZipFormat(arcType);
switch (format)
{
case KnownSevenZipFormat.SevenZip:
case KnownSevenZipFormat.Zip:
break;
case KnownSevenZipFormat.Rar:
return(this.extractRar(archiveName, progress, status, true));
default:
showError("1.0");
break;
}
using (SevenZipFormat format2 = new SevenZipFormat(SevenZipDllPath))
{
if (this.ArchiveIn != null)
{
Marshal.ReleaseComObject(this.ArchiveIn);
for (int i = 0; i < 5; i++)
{
Application.DoEvents();
}
}
this.ArchiveIn = format2.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(format));
if (this.ArchiveIn == null)
{
showError("1.1");
flag = false;
}
try
{
using (InStreamWrapper wrapper = new InStreamWrapper(System.IO.File.OpenRead(archiveName)))
{
IArchiveOpenCallback openArchiveCallback = new ArchiveOpenCallback();
if (this.ArchiveIn.Open(wrapper, 0x20000L, openArchiveCallback) != 0)
{
showError("1.2");
flag = false;
}
else
{
PropVariant variant = new PropVariant();
this.ArchiveIn.GetProperty(fileNumber, ItemPropId.kpidPath, ref variant);
string fileName = (string)variant.GetObject();
this.ArchiveIn.Extract(new uint[] { fileNumber }, 1, 0, new ArchiveExtractCallback(fileNumber, fileName));
flag = true;
}
}
}
finally
{
Marshal.ReleaseComObject(this.ArchiveIn);
}
}
Program.form.waitForFreeMemory(status);
return(flag);
}
public int findFirstExtInArchive(string ext, string archiveName, string arcType, ProgressBar progress, Label status)
{
status.Text = "Scanning Archive " + archiveName;
progress.Maximum = 4;
progress.Value = 0;
Application.DoEvents();
int num = -1;
using (SevenZipFormat format = new SevenZipFormat(SevenZipDllPath))
{
KnownSevenZipFormat sevenZip = KnownSevenZipFormat.SevenZip;
arcType = arcType.ToLower();
switch (arcType)
{
case "rar":
sevenZip = KnownSevenZipFormat.Rar;
break;
case "zip":
sevenZip = KnownSevenZipFormat.Zip;
break;
case "7z":
sevenZip = KnownSevenZipFormat.SevenZip;
break;
default:
showError("0.1");
break;
}
IInArchive o = format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(sevenZip));
if (o == null)
{
showError("0.2");
num = -1;
}
try
{
using (InStreamWrapper wrapper = new InStreamWrapper(System.IO.File.OpenRead(archiveName)))
{
IArchiveOpenCallback openArchiveCallback = new ArchiveOpenCallback();
if (o.Open(wrapper, 0x40000L, openArchiveCallback) != 0)
{
showError("0.3");
num = -1;
}
uint numberOfItems = o.GetNumberOfItems();
fileInRar = "";
for (int i = 0; i < numberOfItems; i++)
{
PropVariant variant = new PropVariant();
o.GetProperty((uint)i, ItemPropId.kpidPath, ref variant);
PropVariant variant2 = new PropVariant();
o.GetProperty((uint)i, ItemPropId.kpidCRC, ref variant2);
if (Program.form.getFileExtension(variant.GetObject().ToString()).ToLower() == ext.ToLower())
{
num = i;
fileInRar = variant.GetObject().ToString();
this.crc_of_extracting_file = long.Parse(variant2.GetObject().ToString()).ToString("X8");
return(num);
}
}
return(num);
}
}
finally
{
Marshal.ReleaseComObject(o);
}
}
return(num);
}
