void IPersistStream.Load(MS.Internal.Interop.IStream stream)
{
// Check argument.
if (stream == null)
{
throw new ArgumentNullException("stream");
}
// Only one of _package and _encryptedPackage can be non-null at a time.
Invariant.Assert(_package == null || _encryptedPackage == null);
// If there has been a previous call to Load, reinitialize everything.
// Note closing a closed stream does not cause any exception.
ReleaseResources();
_filter = null;
_xpsFileName = null;
try
{
_packageStream = new UnsafeIndexingFilterStream(stream);
// different filter for encrypted package
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(_packageStream))
{
// Open the encrypted package.
_encryptedPackage = EncryptedPackageEnvelope.Open(_packageStream);
_filter = new EncryptedPackageFilter(_encryptedPackage);
}
else
{
// Open the package.
_package = Package.Open(_packageStream);
_filter = new PackageFilter(_package);
}
}
catch (IOException ex)
{
throw new COMException(ex.Message, (int)FilterErrorCode.FILTER_E_ACCESS);
}
catch (Exception ex)
{
throw new COMException(ex.Message, (int)FilterErrorCode.FILTER_E_UNKNOWNFORMAT);
}
finally
{
// clean-up if we failed
if (_filter == null)
{
ReleaseResources();
}
}
}
void IPersistStream.Load(MS.Internal.Interop.IStream stream)
{
// Check argument.
if (stream == null)
{
throw new ArgumentNullException("stream");
}
// Only one of _package and _encryptedPackage can be non-null at a time.
Invariant.Assert(_package == null || _encryptedPackage == null);
// If there has been a previous call to Load, reinitialize everything.
// Note closing a closed stream does not cause any exception.
ReleaseResources();
_filter = null;
_xpsFileName = null;
try
{
_packageStream = new UnsafeIndexingFilterStream(stream);
// different filter for encrypted package
if (EncryptedPackageEnvelope.IsEncryptedPackageEnvelope(_packageStream))
{
// Open the encrypted package.
_encryptedPackage = EncryptedPackageEnvelope.Open(_packageStream);
_filter = new EncryptedPackageFilter(_encryptedPackage);
}
else
{
// Open the package.
_package = Package.Open(_packageStream);
_filter = new PackageFilter(_package);
}
}
catch (IOException ex)
{
throw new COMException(ex.Message, (int)FilterErrorCode.FILTER_E_ACCESS);
}
catch (Exception ex)
{
throw new COMException(ex.Message, (int)FilterErrorCode.FILTER_E_UNKNOWNFORMAT);
}
finally
{
// clean-up if we failed
if (_filter == null)
{
ReleaseResources();
}
}
}
