/// <summary>
/// Opens specified archive using the specified mode.
/// </summary>
/// <param name="archivePathName">Path of archive to open</param>
/// <param name="openMode">Mode in which to open archive</param>
public void Open(string archivePathName, OpenMode openMode)
{
IntPtr handle = IntPtr.Zero;
// Close any previously open archives
if (this.archiveHandle != IntPtr.Zero)
{
this.Close();
}
// Prepare extended open archive struct
this.ArchivePathName = archivePathName;
RAROpenArchiveDataEx openStruct = new RAROpenArchiveDataEx();
openStruct.Initialize();
openStruct.ArcName = this.archivePathName + "\0";
openStruct.ArcNameW = this.archivePathName + "\0";
openStruct.OpenMode = (uint)openMode;
if (this.retrieveComment)
{
openStruct.CmtBuf = new string((char)0, 65536);
openStruct.CmtBufSize = 65536;
}
else
{
openStruct.CmtBuf = null;
openStruct.CmtBufSize = 0;
}
// Open archive
handle = Unrar.RAROpenArchiveEx(ref openStruct);
// Check for success
if (openStruct.OpenResult != 0)
{
switch ((RarError)openStruct.OpenResult)
{
case RarError.InsufficientMemory:
throw new OutOfMemoryException("Insufficient memory to perform operation.");
case RarError.BadData:
throw new IOException("Archive header broken");
case RarError.BadArchive:
throw new IOException("File is not a valid archive.");
case RarError.OpenError:
throw new IOException("File could not be opened.");
}
}
// Save handle and flags
this.archiveHandle = handle;
this.archiveFlags = (ArchiveFlags)openStruct.Flags;
// Set callback
Unrar.RARSetCallback(this.archiveHandle, this.callback, this.GetHashCode());
// If comment retrieved, save it
if (openStruct.CmtState == 1)
{
this.comment = openStruct.CmtBuf.ToString();
}
// If password supplied, set it
if (this.password.Length != 0)
{
Unrar.RARSetPassword(this.archiveHandle, this.password);
}
// Fire NewVolume event for first volume
this.OnNewVolume(this.archivePathName);
}
