EmfRectangle

EmfRectangle(EmfRecord)

Initierar en ny instans avEmfRectangle class.

public EmfRectangle(EmfRecord source)
ParameterTypBeskrivning
sourceEmfRecordKällan.

Se även

EmfRectangle()

Initierar en ny instans avEmfRectangle class.

public EmfRectangle()

Exempel

Följande exempel visar hur du ställer in bakgrundsfärgen för EMF. Det sätter faktiskt en rektangel av bakgrundsfärgen innan alla andra objekt ritas.

[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>
/// Hjälpmetod för att ändra EMF-bakgrund.
/// </summary>
public static void AddBackgroundRectangleEmf(Aspose.Imaging.FileFormats.Emf.EmfImage image, Aspose.Imaging.Color color)
{
    image.CacheData();
    if (image.Records.Count < 1)
    {
        return;
    }

    //Ange rektangel
    Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfRectangle rectangle = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfRectangle();
    rectangle.Box = image.Header.EmfHeader.Bounds;

    //Ställ in borste
    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();

    // Objektindex börjar på 1; noll är reserverad för referenser till själva metafilen, se
    // https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-emf/e4fa4e63-9096-4cdc-b776-85e2a1e4e1f4
    brush.IhBrush = 1;

    //Välj pensel
    Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfSelectObject selectObject = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfSelectObject();
    selectObject.ObjectHandle = 1;

    //Ta bort borsten
    Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject deleteObject = new Aspose.Imaging.FileFormats.Emf.Emf.Records.EmfDeleteObject();
    deleteObject.ObjectHandle = 1;

    //Lägg till poster
    image.Records.Insert(1, brush);
    image.Records.Insert(2, selectObject);
    image.Records.Insert(3, rectangle);
    image.Records.Insert(4, deleteObject);
}

Se även

Box