Class EmfSelectObject

Class EmfSelectObject

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

The EMR_SELECTOBJECT record adds a graphics object to the current metafile playback device context. The object is specified either by its index in the EMF Object Table(section 3.1.1.1) or by its value from the StockObject enumeration(section 2.1.31).

public sealed class EmfSelectObject : EmfRecord

Inheritance

object ← MetaObject ← EmfRecord ← EmfSelectObject

Inherited Members

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

Constructors

EmfSelectObject(EmfRecord)

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

public EmfSelectObject(EmfRecord record)

Parameters

record EmfRecord

The record.

EmfSelectObject()

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

public EmfSelectObject()

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 Aspose.Imaging.FileFormats.Emf.Emf.Consts.EmfStockObject enumeration.

public int ObjectHandle { get; set; }

Property Value

int

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