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Image.PixelFormat Property

Gets the pixel format for this Image.

Namespace: System.Drawing
Assembly: System.Drawing (in system.drawing.dll)

public PixelFormat PixelFormat { get; }
/** @property */
public PixelFormat get_PixelFormat ()

public function get PixelFormat () : PixelFormat

Not applicable.

Property Value

A PixelFormat that represents the pixel format for this Image.

The following code example demonstrates how to construct a new bitmap from a file, using the GetPixel and SetPixel methods to recolor the image. It also uses the PixelFormat property.

This example is designed to be used with a Windows Form that contains a Label, PictureBox and Button named Label1, PictureBox1, and Button1, respectively. Paste the code into the form and associate the Button1_Click method with the button's Click event.

Bitmap image1;

private void Button1_Click(System.Object sender, System.EventArgs e)
{

    try
    {
        // Retrieve the image.
        image1 = new Bitmap(@"C:\Documents and Settings\All Users\" 
            + @"Documents\My Music\music.bmp", true);

        int x, y;

        // Loop through the images pixels to reset color.
        for(x=0; x<image1.Width; x++)
        {
            for(y=0; y<image1.Height; y++)
            {
                Color pixelColor = image1.GetPixel(x, y);
                Color newColor = Color.FromArgb(pixelColor.R, 0, 0);
                image1.SetPixel(x, y, newColor);
            }
        }

        // Set the PictureBox to display the image.
        PictureBox1.Image = image1;

        // Display the pixel format in Label1.
        Label1.Text = "Pixel format: "+image1.PixelFormat.ToString();

    }
    catch(ArgumentException)
    {
        MessageBox.Show("There was an error." +
            "Check the path to the image file.");
    }
}

private Bitmap image1;

private void button1_Click(Object sender, System.EventArgs e)
{
    try {
        // Retrieve the image.
        image1 = new Bitmap("C:\\Documents and Settings\\All Users\\"  
            + "Documents\\My Music\\music.bmp", true);

        int x, y;

        // Loop through the images pixels to reset color.
        for (x = 0; x < image1.get_Width(); x++) {
            for (y = 0; y < image1.get_Height(); y++) {
                Color pixelColor = image1.GetPixel(x, y);
                Color newColor = Color.FromArgb(pixelColor.get_R(), 0, 0);

                image1.SetPixel(x, y, newColor);
            }
        }

        // Set the PictureBox to display the image.
        pictureBox1.set_Image(image1);

        // Display the pixel format in label1.
        label1.set_Text("Pixel format: " 
            + image1.get_PixelFormat().ToString());
    }
    catch (ArgumentException exp) {
        MessageBox.Show(("There was an error."  
            + "Check the path to the image file."));
    }
} //button1_Click

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

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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