Class EmfRectangle

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

The EMR_RECTANGLE record draws a rectangle. The rectangle is outlined by using the current pen and filled by using the current brush.

public sealed class EmfRectangle : EmfDrawingRecordType

Inheritance

object ← MetaObject ← EmfRecord ← EmfDrawingRecordType ← EmfRectangle

Inherited Members

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

Remarks

The current position is neither used nor updated by Rectangle. If a PS_NULL pen is used, the dimensions of the rectangle are 1 pixel less in height and 1 pixel less in width.

Constructors

EmfRectangle(EmfRecord)

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

public EmfRectangle(EmfRecord source)

Parameters

source EmfRecord

The source.

EmfRectangle()

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

public EmfRectangle()

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

Box

Gets or sets a 128-bit WMF RectL object, specified in [MS-WMF] section 2.2.2.19, which specifies the inclusive-inclusive rectangle to draw.

public Rectangle Box { get; set; }

Property Value

Rectangle