iampi2.cpp

#include <imapi2.h>
#include <imapi2error.h>
#include <imapi2fs.h>
#include <imapi2fserror.h>

void iampi2_cpp::convert2iso() {
    HRESULT hres = 0;
    CoInitialize(NULL);
    IFileSystemImage* image = NULL;
    IFileSystemImageResult* result = NULL;
    IFsiDirectoryItem* root = NULL;
    IStream* file = NULL;
    IStream* r_i = NULL;
    hres = CoCreateInstance(CLSID_MsftFileSystemImage, NULL, CLSCTX_ALL, __uuidof(IFileSystemImage), (void**)&image);
    printf("CoCreateInstance %08X\n", hres);
    hres = image->put_FileSystemsToCreate((FsiFileSystems)(FsiFileSystemJoliet | FsiFileSystemISO9660));
    printf("put_FileSystemsToCreate %08X\n", hres);
    hres = image->put_VolumeName(L"Pictures");
    printf("put_VolumeName %08X\n", hres);
    hres = image->ChooseImageDefaultsForMediaType(IMAPI_MEDIA_TYPE_CDRW);
    printf("ChooseImageDefaultsForMediaType %08X\n", hres);
    
    hres = image->get_Root(&root);
    printf("get_Root %08X\n", hres);
    hres = root->AddTree(L"C:\\isome", VARIANT_TRUE);
    printf("AddTree %08X\n", hres);
    
    hres = image->CreateResultImage(&result);
    printf("CreateResultImage %08X\n", hres);
    hres = result->get_ImageStream(&r_i);
    printf("get_ImageStream %08X\n", hres);
    
    STATSTG stg;
    r_i->Stat(&stg, 1);
    char* data = new char[stg.cbSize.QuadPart];
    ULONG size;
    r_i->Read(data, stg.cbSize.QuadPart, &size);
    
    FILE* f = fopen("C:\\image.iso", "wb");
    fwrite(data, stg.cbSize.QuadPart, 1, f);
    fclose(f);
    
    delete data;
    r_i->Release();
    root->Release();
    result->Release();
    image->Release();
    
    CoUninitialize();
}

run.cs

using system;

namespace csharp_console
{
    using iampi2_cpp;

    class Program
    {
        static iampi2_class cpp = new iampi2_class();

        static void Main(string[] args)
        {
            cpp.convert2iso();
            Console.ReadLine();
        }
    }
}