Class EmfDeleteObject
Navne til: Aspose.Imaging.FileFormats.Emf.Emf.Records Sammensætning: Aspose.Imaging.dll (25.4.0)
EMR_DELETEOBJECT-registret sletter et grafisk objekt, som er angivet af dens indeks i EMF Object Table (sektion 3.1.1.1).
public sealed class EmfDeleteObject : EmfRecordInheritance
object ← MetaObject ← EmfRecord ← EmfDeleteObject
De arvede medlemmer
EmfRecord.Type , EmfRecord.Size , object.GetType() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()
Constructors
EmfDeleteObject(EmfRecord)
Initialiserer en ny instans af Aspose.Imaging.FileFormats.Emf.EMF.Records. EmfDeleteObject klasse.
public EmfDeleteObject(EmfRecord record)Parameters
record EmfRecord
og rekordet.
EmfDeleteObject()
Initialiserer en ny instans af Aspose.Imaging.FileFormats.Emf.EMF.Records. EmfDeleteObject klasse.
public EmfDeleteObject()Examples
Følgende eksempel viser, hvordan du indstiller baggrundsfarven for EMF. Det placerer faktisk en rektangle af baggrundfarvet, før du tegner alle andre objekter.
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
Gæder eller indsætter 32-bit usigned integer, der angiver enten indekset for et grafisk objekti EMF-objektabellen eller indekset for et aktiekobjekt fra StockObject-listen.
public int ObjectHandle { get; set; }