XpsResource.GetStream 方法
定義
重要
部分資訊涉及發行前產品,在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊,不做任何明確或隱含的瑕疵擔保。
當在衍生類別中覆寫時,會回傳 I/O 串流用於讀取或寫入該資源。
public:
virtual System::IO::Stream ^ GetStream();
public virtual System.IO.Stream GetStream();
abstract member GetStream : unit -> System.IO.Stream
override this.GetStream : unit -> System.IO.Stream
Public Overridable Function GetStream () As Stream
傳回
這是 Stream 閱讀或寫作資源的選擇。
範例
以下範例說明如何使用此方法(在導出類別中)為 加入資源。XpsDocument
// -------------------------- AddPageResources ----------------------------
Dictionary<System::String^,List<XpsResource^>^>^ AddPageResources (IXpsFixedPageWriter^ fixedPageWriter)
{
// Collection of all resources for this page.
// Key: "XpsImage", "XpsFont"
// Value: List of XpsImage or XpsFont
Dictionary<System::String^,List<XpsResource^>^>^ resources = gcnew Dictionary<System::String^,List<XpsResource^>^>();
// Collections of images and fonts used in the current page.
List<XpsResource^>^ xpsImages = gcnew List<XpsResource^>();
List<XpsResource^>^ xpsFonts = gcnew List<XpsResource^>();
try
{
XpsImage^ xpsImage;
XpsFont^ xpsFont;
// Add, Write, and Commit image1 to the current page.
xpsImage = fixedPageWriter->AddImage(XpsImageType::JpegImageType);
WriteToStream(xpsImage->GetStream(), image1);
xpsImage->Commit();
xpsImages->Add(xpsImage); // Add image1 as a required resource.
// Add, Write, and Commit font 1 to the current page.
xpsFont = fixedPageWriter->AddFont();
WriteObfuscatedStream(xpsFont->Uri->ToString(), xpsFont->GetStream(), font1);
xpsFont->Commit();
xpsFonts->Add(xpsFont); // Add font1 as a required resource.
// Add, Write, and Commit image2 to the current page.
xpsImage = fixedPageWriter->AddImage(XpsImageType::TiffImageType);
WriteToStream(xpsImage->GetStream(), image2);
xpsImage->Commit();
xpsImages->Add(xpsImage); // Add image2 as a required resource.
// Add, Write, and Commit font2 to the current page.
xpsFont = fixedPageWriter->AddFont(false);
WriteToStream(xpsFont->GetStream(), font2);
xpsFont->Commit();
xpsFonts->Add(xpsFont); // Add font2 as a required resource.
// Return the image and font resources in a combined collection.
resources->Add("XpsImage", xpsImages);
resources->Add("XpsFont", xpsFonts);
return resources;
} catch (XpsPackagingException^ xpsException)
{
throw xpsException;
}
};// end:AddPageResources()
// -------------------------- AddPageResources ----------------------------
private Dictionary<string, List<XpsResource>>
AddPageResources(IXpsFixedPageWriter fixedPageWriter)
{
// Collection of all resources for this page.
// Key: "XpsImage", "XpsFont"
// Value: List of XpsImage or XpsFont
Dictionary<string, List<XpsResource>> resources =
new Dictionary<string, List<XpsResource>>();
// Collections of images and fonts used in the current page.
List<XpsResource> xpsImages = new List<XpsResource>();
List<XpsResource> xpsFonts = new List<XpsResource>();
try
{
XpsImage xpsImage;
XpsFont xpsFont;
// Add, Write, and Commit image1 to the current page.
xpsImage = fixedPageWriter.AddImage(XpsImageType.JpegImageType);
WriteToStream(xpsImage.GetStream(), image1);
xpsImage.Commit();
xpsImages.Add(xpsImage); // Add image1 as a required resource.
// Add, Write, and Commit font 1 to the current page.
xpsFont = fixedPageWriter.AddFont();
WriteObfuscatedStream(
xpsFont.Uri.ToString(), xpsFont.GetStream(), font1);
xpsFont.Commit();
xpsFonts.Add(xpsFont); // Add font1 as a required resource.
// Add, Write, and Commit image2 to the current page.
xpsImage = fixedPageWriter.AddImage(XpsImageType.TiffImageType);
WriteToStream(xpsImage.GetStream(), image2);
xpsImage.Commit();
xpsImages.Add(xpsImage); // Add image2 as a required resource.
// Add, Write, and Commit font2 to the current page.
xpsFont = fixedPageWriter.AddFont(false);
WriteToStream(xpsFont.GetStream(), font2);
xpsFont.Commit();
xpsFonts.Add(xpsFont); // Add font2 as a required resource.
// Return the image and font resources in a combined collection.
resources.Add("XpsImage", xpsImages);
resources.Add("XpsFont", xpsFonts);
return resources;
}
catch (XpsPackagingException xpsException)
{
throw xpsException;
}
}// end:AddPageResources()
' -------------------------- AddPageResources ----------------------------
Private Function AddPageResources(ByVal fixedPageWriter As IXpsFixedPageWriter) As Dictionary(Of String, List(Of XpsResource))
' Collection of all resources for this page.
' Key: "XpsImage", "XpsFont"
' Value: List of XpsImage or XpsFont
Dim resources As New Dictionary(Of String, List(Of XpsResource))()
' Collections of images and fonts used in the current page.
Dim xpsImages As New List(Of XpsResource)()
Dim xpsFonts As New List(Of XpsResource)()
Try
Dim xpsImage As XpsImage
Dim xpsFont As XpsFont
' Add, Write, and Commit image1 to the current page.
xpsImage = fixedPageWriter.AddImage(XpsImageType.JpegImageType)
WriteToStream(xpsImage.GetStream(), image1)
xpsImage.Commit()
xpsImages.Add(xpsImage) ' Add image1 as a required resource.
' Add, Write, and Commit font 1 to the current page.
xpsFont = fixedPageWriter.AddFont()
WriteObfuscatedStream(xpsFont.Uri.ToString(), xpsFont.GetStream(), font1)
xpsFont.Commit()
xpsFonts.Add(xpsFont) ' Add font1 as a required resource.
' Add, Write, and Commit image2 to the current page.
xpsImage = fixedPageWriter.AddImage(XpsImageType.TiffImageType)
WriteToStream(xpsImage.GetStream(), image2)
xpsImage.Commit()
xpsImages.Add(xpsImage) ' Add image2 as a required resource.
' Add, Write, and Commit font2 to the current page.
xpsFont = fixedPageWriter.AddFont(False)
WriteToStream(xpsFont.GetStream(), font2)
xpsFont.Commit()
xpsFonts.Add(xpsFont) ' Add font2 as a required resource.
' Return the image and font resources in a combined collection.
resources.Add("XpsImage", xpsImages)
resources.Add("XpsFont", xpsFonts)
Return resources
Catch xpsException As XpsPackagingException
Throw xpsException
End Try
End Function ' end:AddPageResources()