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Bitmap.SetPixel Method

Sets the color of the specified pixel in this Bitmap.

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

'Declaration
Public Sub SetPixel ( _
	x As Integer, _
	y As Integer, _
	color As Color _
)
'Usage
Dim instance As Bitmap 
Dim x As Integer 
Dim y As Integer 
Dim color As Color

instance.SetPixel(x, y, color)

Parameters

x
Type: System.Int32

The x-coordinate of the pixel to set.

y
Type: System.Int32

The y-coordinate of the pixel to set.

color
Type: System.Drawing.Color

A Color structure that represents the color to assign to the specified pixel.

ExceptionCondition
Exception

The operation failed.

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:

  • Creates a Bitmap.

  • Sets the color of each pixel in the bitmap to black.

  • Draws the bitmap.

Private Sub SetPixel_Example(ByVal e As PaintEventArgs)

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

    ' Draw myBitmap to the screen.
    e.Graphics.DrawImage(myBitmap, 0, 0, myBitmap.Width, _
    myBitmap.Height)

    ' Set each pixel in myBitmap to black. 
    Dim Xcount As Integer 
    For Xcount = 0 To myBitmap.Width - 1
        Dim Ycount As Integer 
        For Ycount = 0 To myBitmap.Height - 1
            myBitmap.SetPixel(Xcount, Ycount, Color.Black)
        Next Ycount
    Next Xcount

    ' Draw myBitmap to the screen again.
    e.Graphics.DrawImage(myBitmap, myBitmap.Width, 0, myBitmap.Width, _
        myBitmap.Height)
End Sub

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, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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