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Bitmap::GetPixel Method
Visual Studio 2010
Gets 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 retrieve.
- y
- Type: System::Int32
The y-coordinate of the pixel to retrieve.
Return Value
Type: System.Drawing::ColorA 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 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 ); }
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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