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ImageAttributes.SetWrapMode Method (WrapMode)

Sets the wrap mode that is used to decide how to tile a texture across a shape, or at shape boundaries. A texture is tiled across a shape to fill it in when the texture is smaller than the shape it is filling.

Namespace:  System.Drawing.Imaging
Assembly:  System.Drawing (in System.Drawing.dll)

public void SetWrapMode(
	WrapMode mode
)

Parameters

mode
Type: System.Drawing.Drawing2D.WrapMode

An element of WrapMode that specifies how repeated copies of an image are used to tile an area.

Calling the SetWrapMode(WrapMode) method is equivalent to calling SetWrapMode(WrapMode, Color) and passing Color.Black for the color parameter. Color.Black specifies the color of pixels outside of a rendered image. This color is visible if the mode parameter is set to Clamp and the source rectangle passed to the DrawImage method is larger than the image itself.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  1. Opens an Image from the Circle3.jpg file (a small, red-filled circle) and draws it to the screen.

  2. Creates an ImageAttributes object and sets the WrapMode enumeration to Tile.

  3. Creates a TextureBrush using the image from the Circle3.jpg file.

  4. Draws a rectangle to the screen that is filled with the small, red-filled circles.

private void SetWrapModeExample(PaintEventArgs e)
{

    // Create a filled, red circle, and save it to Circle3.jpg.
    Bitmap myBitmap = new Bitmap(50, 50);
    Graphics g = Graphics.FromImage(myBitmap);
    g.Clear(Color.White);
    g.FillEllipse(new SolidBrush(Color.Red),
        new Rectangle(0, 0, 25, 25));
    myBitmap.Save("Circle3.jpg");

    // Create an Image object from the Circle3.jpg file, and draw it 
    // to the screen.
    Image myImage = Image.FromFile("Circle3.jpg");
    e.Graphics.DrawImage(myImage, 20, 20);

    // Set the wrap mode.
    ImageAttributes imageAttr = new ImageAttributes();
    imageAttr.SetWrapMode(WrapMode.Tile);

    // Create a TextureBrush.
    Rectangle brushRect = new Rectangle(0,0,25,25);
    TextureBrush myTBrush = new TextureBrush(myImage, brushRect, imageAttr);

    // Draw to the screen a rectangle filled with red circles.
    e.Graphics.FillRectangle(myTBrush, 100, 20, 200, 200);
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

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