EmfSelectObject

EmfSelectObject constructor (1 of 2)

Initializes a new instance of the EmfSelectObject class.

public EmfSelectObject(EmfRecord record)
Parameter Type Description
record EmfRecord The record.

See Also


EmfSelectObject constructor (2 of 2)

Initializes a new instance of the 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.

[C#]

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);
}

See Also