Class EmfDeleteObject

Class EmfDeleteObject

Namespace: Aspose.Imaging.FileFormats.Emf.Emf.Records
Assembly: Aspose.Imaging.dll (26.4.0)

The EMR_DELETEOBJECT record deletes a graphics object, which is specified by its index in the EMF Object Table(section 3.1.1.1).

public sealed class EmfDeleteObject : EmfRecord

Inheritance

object ← MetaObject ← EmfRecord ← EmfDeleteObject

Inherited Members

EmfRecord.Type , EmfRecord.Size , object.GetType() , object.ToString() , object.Equals(object?) , object.Equals(object?, object?) , object.ReferenceEquals(object?, object?) , object.GetHashCode()

Constructors

EmfDeleteObject(EmfRecord)

Initializes a new instance of the Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject class.

public EmfDeleteObject(EmfRecord record)

Parameters

record EmfRecord

The record.

EmfDeleteObject()

Initializes a new instance of the Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject class.

public EmfDeleteObject()

Examples

The following example shows how set the background color for EMF. It actually puts a rectangle of the background color before drawing all other objects.

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

Gets or sets 32-bit unsigned integer that specifies either the index of a graphics object in the EMF Object Table or the index of a stock object from the StockObject enumeration.

public int ObjectHandle { get; set; }

Property Value

int

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