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Bitmap::SetPixel Method
Visual Studio 2010
Sets the color of the specified pixel in this Bitmap.
Assembly: System.Drawing (in System.Drawing.dll)
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.
| Exception | Condition |
|---|---|
| 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: void SetPixel_Example( PaintEventArgs^ e ) { // Create a Bitmap object from a file. Bitmap^ myBitmap = gcnew 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. for ( int Xcount = 0; Xcount < myBitmap->Width; Xcount++ ) { for ( int Ycount = 0; Ycount < myBitmap->Height; Ycount++ ) { myBitmap->SetPixel( Xcount, Ycount, Color::Black ); } } // Draw myBitmap to the screen again. e->Graphics->DrawImage( myBitmap, myBitmap->Width, 0, myBitmap->Width, myBitmap->Height ); }
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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