จัดการข้อมูลเมตา XMP

    // The path to the documents directory.
    System::String dataDir = RunExamples::GetDataDir_WorkingWithXMPMetadataInEPS();
    // Initialize EPS file input stream
    System::SharedPtr<System::IO::FileStream> psStream = System::MakeObject<System::IO::FileStream>(dataDir + u"add_input.eps", System::IO::FileMode::Open, System::IO::FileAccess::Read);
    // Create PsDocument instance from stream
    System::SharedPtr<PsDocument> document = System::MakeObject<PsDocument>(psStream);
    
    
    {
        auto __finally_guard_0 = ::System::MakeScopeGuard([&psStream]()
        {
            psStream->Close();
        });
        
        try
        {
            // Get XMP metadata. If EPS file doesn't contain XMP metadata we get new one filled with values from PS metadata comments (%%Creator, %%CreateDate, %%Title etc)
            System::SharedPtr<XmpMetadata> xmp = document->GetXmpMetadata();
            
            // Check metadata values extracted from PS metadata comments and set up in new XMP metadata
            
            // Get "CreatorTool" value
            if (xmp->Contains(u"xmp:CreatorTool"))
            {
                System::Console::WriteLine(System::String(u"CreatorTool: ") + xmp->idx_get(u"xmp:CreatorTool")->ToStringValue());
            }
            
            // Get "CreateDate" value
            if (xmp->Contains(u"xmp:CreateDate"))
            {
                System::Console::WriteLine(System::String(u"CreateDate: ") + xmp->idx_get(u"xmp:CreateDate")->ToStringValue());
            }
            
            // Get "format" value
            if (xmp->Contains(u"dc:format"))
            {
                System::Console::WriteLine(System::String(u"Format: ") + xmp->idx_get(u"dc:format")->ToStringValue());
            }
            
            // Get "title" value
            if (xmp->Contains(u"dc:title"))
            {
                System::Console::WriteLine(System::String(u"Title: ") + xmp->idx_get(u"dc:title")->ToArray()->idx_get(0)->ToStringValue());
            }
            
            // Get "creator" value
            if (xmp->Contains(u"dc:creator"))
            {
                System::Console::WriteLine(System::String(u"Creator: ") + xmp->idx_get(u"dc:creator")->ToArray()->idx_get(0)->ToStringValue());
            }
            
            // Get "MetadataDate" value
            if (xmp->Contains(u"xmp:MetadataDate"))
            {
                System::Console::WriteLine(System::String(u"MetadataDate: ") + xmp->idx_get(u"xmp:MetadataDate")->ToStringValue());
            }
            
            // Save EPS file with new XMP metadata
            
            // Create ouput stream
            {
                System::SharedPtr<System::IO::FileStream> outPsStream = System::MakeObject<System::IO::FileStream>(dataDir + u"output/" + u"add_output.eps", System::IO::FileMode::Create, System::IO::FileAccess::Write);
                // Clearing resources under 'using' statement
                System::Details::DisposeGuard<1> __dispose_guard_1({ outPsStream});
                // ------------------------------------------
                
                try
                {
                    // Save EPS file
                    document->Save(outPsStream);
                }
                catch(...)
                {
                    __dispose_guard_1.SetCurrentException(std::current_exception());
                }
            }
            
        }
        catch (...)
        {
            throw;
        }
    }

    // The path to the documents directory.
    System::String dataDir = RunExamples::GetDataDir_WorkingWithXMPMetadataInEPS();
    // Initialize EPS file input stream
    System::SharedPtr<System::IO::FileStream> psStream = System::MakeObject<System::IO::FileStream>(dataDir + u"add_simple_props_input.eps", System::IO::FileMode::Open, System::IO::FileAccess::Read);
    // Create PsDocument instance from stream
    System::SharedPtr<PsDocument> document = System::MakeObject<PsDocument>(psStream);
    
    
    {
        auto __finally_guard_0 = ::System::MakeScopeGuard([&psStream]()
        {
            psStream->Close();
        });
        
        try
        {
            // Get XMP metadata. If EPS file doesn't contain XMP metadata we get new one filled with values from PS metadata comments (%%Creator, %%CreateDate, %%Title etc)
            System::SharedPtr<XmpMetadata> xmp = document->GetXmpMetadata();
            
            //Change XMP metadata values
            
            // Add one more title. I will be added at the end of array by default.
            xmp->AddArrayItem(u"dc:title", System::MakeObject<XmpValue>(u"NewTitle"));
            
            // Add one more creator. It will be added in the array by an index (0).
            xmp->AddArrayItem(u"dc:creator", 0, System::MakeObject<XmpValue>(u"NewCreator"));
            
            // Save EPS file with changed XMP metadata
            
            // Create ouput stream
            {
                System::SharedPtr<System::IO::FileStream> outPsStream = System::MakeObject<System::IO::FileStream>(dataDir + u"output/" + u"add_array_items_output.eps", System::IO::FileMode::Create, System::IO::FileAccess::Write);
                // Clearing resources under 'using' statement
                System::Details::DisposeGuard<1> __dispose_guard_1({ outPsStream});
                // ------------------------------------------
                
                try
                {
                    // Save EPS file
                    document->Save(outPsStream);
                }
                catch(...)
                {
                    __dispose_guard_1.SetCurrentException(std::current_exception());
                }
            }
            
        }
        catch (...)
        {
            throw;
        }
    }