C# DataObject.SetImage方法代码示例

    public void InsertImage(string imageFile)
    {
        DataObject dobj = new DataObject();

        dobj.SetImage(imageFile);

        this.InsertMyDataObject(dobj);
    }

        internal static DataObject _CreateDataObject(TextEditor This, bool isDragDrop)
        {
            DataObject dataObject;
            // Create the data object for drag and drop.
            // 






            (new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();//BlessedAssert
            try
            {
                dataObject = new DataObject();
            }
            finally
            {
                UIPermission.RevertAssert();
            }

            // Get plain text and copy it into the data object.
            string textString = This.Selection.Text;

            if (textString != String.Empty)
            {
                // Copy plain text into data object.
                // ConfirmDataFormatSetting rasies a public event - could throw recoverable exception.
                if (ConfirmDataFormatSetting(This.UiScope, dataObject, DataFormats.Text))
                {
                    CriticalSetDataWrapper(dataObject,DataFormats.Text, textString);
                }

                // Copy unicode text into data object.
                // ConfirmDataFormatSetting rasies a public event - could throw recoverable exception.
                if (ConfirmDataFormatSetting(This.UiScope, dataObject, DataFormats.UnicodeText))
                {
                    CriticalSetDataWrapper(dataObject,DataFormats.UnicodeText, textString);
                }
            }

            // Get the rtf and xaml text and then copy it into the data object after confirm data format.
            // We do this only if our content is rich
            if (This.AcceptsRichContent)
            {
                // This ensures that in the confines of partial trust RTF is not enabled.
                // We use unmanaged code permission over clipboard permission since
                // the latter is available in intranet zone and this is something that will
                // fail in intranet too.
                if (SecurityHelper.CheckUnmanagedCodePermission())
                {
                    // In FullTrust we allow all rich formats on the clipboard

                    Stream wpfContainerMemory = null;
                    // null wpfContainerMemory on entry means that container is optional
                    // and will be not created when there is no images in the range.

                    // Create in-memory wpf package, and serialize the content of selection into it
                    string xamlTextWithImages = WpfPayload.SaveRange(This.Selection, ref wpfContainerMemory, /*useFlowDocumentAsRoot:*/false);

                    if (xamlTextWithImages.Length > 0)
                    {
                        // ConfirmDataFormatSetting raises a public event - could throw recoverable exception.
                        if (wpfContainerMemory != null && ConfirmDataFormatSetting(This.UiScope, dataObject, DataFormats.XamlPackage))
                        {
                            dataObject.SetData(DataFormats.XamlPackage, wpfContainerMemory);
                        }

                        // ConfirmDataFormatSetting raises a public event - could throw recoverable exception.
                        if (ConfirmDataFormatSetting(This.UiScope, dataObject, DataFormats.Rtf))
                        {
                            // Convert xaml to rtf text to set rtf data into data object.
                            string rtfText = ConvertXamlToRtf(xamlTextWithImages, wpfContainerMemory);

                            if (rtfText != String.Empty)
                            {
                                dataObject.SetData(DataFormats.Rtf, rtfText, true);
                            }
                        }
                    }

                    // Add a CF_BITMAP if we have only one image selected.
                    Image image = This.Selection.GetUIElementSelected() as Image;
                    if (image != null && image.Source is System.Windows.Media.Imaging.BitmapSource)
                    {
                        dataObject.SetImage((System.Windows.Media.Imaging.BitmapSource)image.Source);
                    }
                }

                // Xaml format is availabe both in Full Trust and in Partial Trust
                // Need to re-serialize xaml to avoid image references within a container:
                StringWriter stringWriter = new StringWriter(CultureInfo.InvariantCulture);
                XmlTextWriter xmlWriter = new XmlTextWriter(stringWriter);
                TextRangeSerialization.WriteXaml(xmlWriter, This.Selection, /*useFlowDocumentAsRoot:*/false, /*wpfPayload:*/null);
                string xamlText = stringWriter.ToString();
                // 

                if (xamlText.Length > 0)
                {
                    // ConfirmDataFormatSetting rasies a public event - could throw recoverable exception.
//.........这里部分代码省略.........