Hi i am kinda new to ironpython and tried to use unrar in a project.
Since i was unable to directly import it i made a .net wrapper dll (see
attachment generate.py), works quite well only problem left now is:
>> archiveData = unrar.RAROpenArchiveDataEx(OpenMode=1)
ValueError: Attempt to update field 'OpenMode' on value type
'RAROpenArchiveDataEx'; value type fields cannot be directly modified
guess there is an easy way to solve it, any help would be appreciated
regards
ronny
import clr
from System.Environment import CurrentDirectory
from System.IO import Path, Directory
from System.CodeDom import Compiler
from Microsoft.CSharp import CSharpCodeProvider
def Generate(code, name, references=None, outputDirectory=None, inMemory=False):
CompilerParams = Compiler.CompilerParameters()
if outputDirectory is None:
outputDirectory = Directory.GetCurrentDirectory()
if not inMemory:
CompilerParams.OutputAssembly = Path.Combine(outputDirectory, name +
".dll")
CompilerParams.GenerateInMemory = False
else:
CompilerParams.GenerateInMemory = True
CompilerParams.TreatWarningsAsErrors = False
CompilerParams.GenerateExecutable = False
CompilerParams.CompilerOptions = "/optimize"
for reference in references or []:
CompilerParams.ReferencedAssemblies.Add(reference)
provider = CSharpCodeProvider()
compile = provider.CompileAssemblyFromSource(CompilerParams, code)
if compile.Errors.HasErrors:
raise Exception("Compile error: %r" % list(compile.Errors.List))
if inMemory:
return compile.CompiledAssembly
return compile.PathToAssembly
unmanaged_code = """
using System;
using System.Runtime.InteropServices;
namespace pyrar
{
public class unrar
{
public const int ERAR_END_ARCHIVE = 10;
public const int ERAR_NO_MEMORY = 11;
public const int ERAR_BAD_DATA = 12;
public const int ERAR_BAD_ARCHIVE = 13;
public const int ERAR_UNKNOWN_FORMAT = 14;
public const int ERAR_EOPEN = 15;
public const int ERAR_ECREATE = 16;
public const int ERAR_ECLOSE = 17;
public const int ERAR_EREAD = 18;
public const int ERAR_EWRITE = 19;
public const int ERAR_SMALL_BUF = 20;
public const int RAR_OM_LIST = 0;
public const int RAR_OM_EXTRACT = 1;
public const int RAR_SKIP = 0;
public const int RAR_TEST = 1;
public const int RAR_EXTRACT = 2;
public const int RAR_VOL_ASK = 0;
public const int RAR_VOL_NOTIFY = 1;
public enum RarOperations
{
OP_EXTRACT = 0,
OP_TEST = 1,
OP_LIST = 2
}
public struct RARHeaderData
{
public string ArcName;
public string FileName;
public uint Flags;
public uint PackSize;
public uint UnpSize;
public uint HostOS;
public uint FileCRC;
public uint FileTime;
public uint UnpVer;
public uint Method;
public uint FileAttr;
public string CmtBuf;
public uint CmtBufSize;
public uint CmtSize;
public uint CmtState;
}
public struct RAROpenArchiveData
{
public string ArcName;
public uint OpenMode;
public uint OpenResult;
public string CmtBuf;
public uint CmtBufSize;
public uint CmtSize;
public uint CmtState;
}
public struct RAROpenArchiveDataEx
{
public string ArcName;
public string ArcNameW;
public uint OpenMode;
public uint OpenResult;
public string CmtBuf;
public uint CmtBufSize;
public uint CmtSize;
public uint CmtState;
public uint Flags;
public uint Reserved;
}
public struct RARHeaderDataEx
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string ArcName;
public string ArcNameW;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)]
public string FileName;
public string FileNameW;
public uint Flags;
public uint PackSize;
public uint PackSizeHigh;
public uint UnpSize;
public uint UnpSizeHigh;
public uint HostOS;
public uint FileCRC;
public uint FileTime;
public uint UnpVer;
public uint Method;
public uint FileAttr;
public string CmtBuf;
public uint CmtBufSize;
public uint CmtSize;
public uint CmtState;
public uint Reserved;
};
[DllImportAttribute("unrar.dll")]
public static extern IntPtr RAROpenArchive (ref
RAROpenArchiveData ArchiveData);
[DllImportAttribute("unrar.dll")]
public static extern int RARCloseArchive(IntPtr hArcData);
[DllImportAttribute("unrar.dll")]
public static extern int RARReadHeader (IntPtr hArcData, ref
RARHeaderData HeaderData);
[DllImportAttribute("unrar.dll")]
public static extern IntPtr RAROpenArchiveEx(ref
RAROpenArchiveDataEx ArchiveData);
[DllImportAttribute("unrar.dll")]
public static extern int RARReadHeaderEx(IntPtr hArcData, ref
RARHeaderDataEx HeaderData);
[DllImportAttribute("unrar.dll")]
public static extern int RARProcessFile(IntPtr hArcData, int
Operation, string DestPath, string DestName);
[DllImportAttribute("unrar.dll")]
public static extern int RARGetDllVersion();
[DllImportAttribute("unrar.dll")]
public static extern int RARSetPassword(IntPtr hArcData,string
Password);
}
}
"""
assembly = Generate(unmanaged_code, 'pyrar.dll', inMemory=False)
_______________________________________________
Users mailing list
[email protected]
http://lists.ironpython.com/listinfo.cgi/users-ironpython.com
