Bitmap.GetPixel Method (Int32, Int32)

 

Gets the color of the specified pixel in this Bitmap.

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

public Color GetPixel(
	int x,
	int y
)

Parameters

x
Type: System.Int32

The x-coordinate of the pixel to retrieve.

y
Type: System.Int32

The y-coordinate of the pixel to retrieve.

Return Value

Type: System.Drawing.Color

A Color structure that represents the color of the specified pixel.

Exception Condition
ArgumentOutOfRangeException

x is less than 0, or greater than or equal to Width.

-or-

y is less than 0, or greater than or equal to Height.

Exception

The operation failed.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. The code gets the color of a pixel in a bitmap, and then fills a rectangle with that color.

private void GetPixel_Example(PaintEventArgs e)
{

    // Create a Bitmap object from an image file.
    Bitmap myBitmap = new Bitmap("Grapes.jpg");

    // Get the color of a pixel within myBitmap.
    Color pixelColor = myBitmap.GetPixel(50, 50);

    // Fill a rectangle with pixelColor.
    SolidBrush pixelBrush = new SolidBrush(pixelColor);
    e.Graphics.FillRectangle(pixelBrush, 0, 0, 100, 100);
}

.NET Framework
Available since 1.1
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