Bitmap.Clone Method (RectangleF, PixelFormat)

 

Creates a copy of the section of this Bitmap defined with a specified PixelFormat enumeration.

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

public Bitmap Clone(
	RectangleF rect,
	PixelFormat format
)

Parameters

rect
Type: System.Drawing.RectangleF

Defines the portion of this Bitmap to copy.

format
Type: System.Drawing.Imaging.PixelFormat

Specifies the PixelFormat enumeration for the destination Bitmap.

Return Value

Type: System.Drawing.Bitmap

The Bitmap that this method creates.

Exception Condition
OutOfMemoryException

rect is outside of the source bitmap bounds.

ArgumentException

The height or width of rect is 0.

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 performs the following actions:

  • Creates a Bitmap from a file.

  • Clones a portion of that Bitmap.

  • Draws the cloned portion to the screen.

private void Clone_Example2(PaintEventArgs e)
{

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

    // Clone a portion of the Bitmap object.
    RectangleF cloneRect = new RectangleF(0, 0, 100, 100);
    System.Drawing.Imaging.PixelFormat format =
        myBitmap.PixelFormat;
    Bitmap cloneBitmap = myBitmap.Clone(cloneRect, format);

    // Draw the cloned portion of the Bitmap object.
    e.Graphics.DrawImage(cloneBitmap, 0, 0);
}

.NET Framework
Available since 1.1
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