Class EmfDeleteObject
Il nome: Aspose.Imaging.FileFormats.Emf.Emf.Records Assemblea: Aspose.Imaging.dll (25.4.0)
Il registro EMR_DELETEOBJECT rimuove un oggetto grafico, che è specificato dal suo indice nella tabella degli oggetti EMF (sezione 3.1.1.1).
public sealed class EmfDeleteObject : EmfRecordInheritance
object ← MetaObject ← EmfRecord ← EmfDeleteObject
I membri ereditari
EmfRecord.Type , EmfRecord.Size , object.GetType() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()
Constructors
EmfDeleteObject(EmfRecord)
Inizia una nuova instanza della classe Aspose.Imaging.FileFormats.Emf.EMF.Records. EmfDeleteObject.
public EmfDeleteObject(EmfRecord record)Parameters
record EmfRecord
Il record .
EmfDeleteObject()
Inizia una nuova instanza della classe Aspose.Imaging.FileFormats.Emf.EMF.Records. EmfDeleteObject.
public EmfDeleteObject()Examples
L’esempio seguente mostra come impostare il colore di sfondo per EMF. In realtà mette un rectangolo del colore posteriore prima di disegnare tutti gli altri oggetti.
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
Riceve o imposta un integratore non segnato a 32 bit che specifica l’indice di un oggetto graficonella tabella degli oggetti EMF o l’indice di un oggetto di stock dall’elenco StockObject.
public int ObjectHandle { get; set; }