Class EmfDeleteObject
Der Name: Aspose.Imaging.FileFormats.Emf.Emf.Records Versammlung: Aspose.Imaging.dll (25.4.0)
Die EMR_DELETEOBJECT-Register löscht ein grafisches Objekt, das durch seinen Index in der EMF-Objekttabelle angegeben wird (Abschnitt 3.1.1.1).
public sealed class EmfDeleteObject : EmfRecordInheritance
object ← MetaObject ← EmfRecord ← EmfDeleteObject
Vererbte Mitglieder
EmfRecord.Type , EmfRecord.Size , object.GetType() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()
Constructors
EmfDeleteObject(EmfRecord)
Initialisiert eine neue Instanz der Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject Klasse.
public EmfDeleteObject(EmfRecord record)Parameters
record EmfRecord
Das Rekord.
EmfDeleteObject()
Initialisiert eine neue Instanz der Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject Klasse.
public EmfDeleteObject()Examples
Das folgende Beispiel zeigt, wie die Hintergrundfarbe für EMF festgelegt wird. Es legt vor dem Zeichnen aller anderen Objekte tatsächlich einen Rechtangel der Hintergrundfarbe.
string dir = "c:\\aspose.imaging\\issues\\net\\3280\\";
string inputFilePath = dir + "image1.emf";
string outputFilePath = dir + "ChangeBackground_" + "image1.emf";
using (Aspose.Imaging.FileFormats.Emf.MetaImage image = (Aspose.Imaging.FileFormats.Emf.MetaImage)Aspose.Imaging.Image.Load(inputFilePath))
{
AddBackgroundRectangleEmf((Aspose.Imaging.FileFormats.Emf.EmfImage)image, Aspose.Imaging.Color.Blue);
image.Save(outputFilePath);
}
/// <summary>
/// Helper method to change EMF background.
/// </summary>
public static void AddBackgroundRectangleEmf(Aspose.Imaging.FileFormats.Emf.EmfImage image, Aspose.Imaging.Color color)
{
image.CacheData();
if (image.Records.Count < 1)
{
return;
}
//Set Rectangle
Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfRectangle rectangle = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfRectangle();
rectangle.Box = image.Header.EmfHeader.Bounds;
//Set Brush
Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfCreateBrushIndirect brush = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfCreateBrushIndirect();
brush.LogBrush = new Aspose.Imaging.FileFormats.Emf.Emf.Objects.EmfLogBrushEx();
brush.LogBrush.Argb32ColorRef = color.ToArgb();
// Object indexes start at 1; zero is reserved for references to the metafile itself, see
// https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-emf/e4fa4e63-9096-4cdc-b776-85e2a1e4e1f4
brush.IhBrush = 1;
//Select brush
Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfSelectObject selectObject = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfSelectObject();
selectObject.ObjectHandle = 1;
//Remove brush
Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject deleteObject = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject();
deleteObject.ObjectHandle = 1;
//Add records
image.Records.Insert(1, brush);
image.Records.Insert(2, selectObject);
image.Records.Insert(3, rectangle);
image.Records.Insert(4, deleteObject);
}Properties
ObjectHandle
Gibt oder setzt ein 32-Bit-Unsigned-Teil, das entweder den Index eines Grafikobjekts angibtin der EMF Object-Tabelle oder dem Index eines Aktienobjekts aus der StockObject-Liste.
public int ObjectHandle { get; set; }