Bitmap.GetPixel(Int32, Int32) Method

Definition

Namespace:

System.Drawing

Assembly:

System.Drawing.Common.dll

Source:

Bitmap.cs

Gets the color of the specified pixel in this Bitmap.

public:
 System::Drawing::Color GetPixel(int x, int y);

public System.Drawing.Color GetPixel (int x, int y);

member this.GetPixel : int * int -> System.Drawing.Color

Public Function GetPixel (x As Integer, y As Integer) As Color

Parameters

x

Int32

The x-coordinate of the pixel to retrieve.

y

Int32

The y-coordinate of the pixel to retrieve.

Returns

Color

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

Exceptions

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.

Examples

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 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 = gcnew Bitmap( "Grapes.jpg" );

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

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

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);
}

Private Sub GetPixel_Example(ByVal e As PaintEventArgs)

    ' Create a Bitmap object from an image file.
    Dim myBitmap As New Bitmap("Grapes.jpg")

    ' Get the color of a pixel within myBitmap.
    Dim pixelColor As Color = myBitmap.GetPixel(50, 50)

    ' Fill a rectangle with pixelColor.
    Dim pixelBrush As New SolidBrush(pixelColor)
    e.Graphics.FillRectangle(pixelBrush, 0, 0, 100, 100)
End Sub