Bitmap::Clone Method (Rectangle, PixelFormat)
Creates a copy of the section of this Bitmap defined by Rectangle structure and with a specified PixelFormat enumeration.
Assembly: System.Drawing (in System.Drawing.dll)
Parameters
- rect
- Type: System.Drawing::Rectangle
Defines the portion of this Bitmap to copy. Coordinates are relative to this Bitmap.
- format
- Type: System.Drawing.Imaging::PixelFormat
The pixel format for the new Bitmap. This must specify a value that begins with Format.
| Exception | Condition |
|---|---|
| OutOfMemoryException | rect is outside of the source bitmap bounds. |
| ArgumentException | The height or width of rect is 0. -or- A PixelFormat value is specified whose name does not start with Format. For example, specifying Gdi will cause an ArgumentException, but Format48bppRgb will not. |
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 from a file.
Clones a portion of that Bitmap.
Draws the cloned portion to the screen.
private: void Clone_Example1( PaintEventArgs^ e ) { // Create a Bitmap object from a file. Bitmap^ myBitmap = gcnew Bitmap( "Grapes.jpg" ); // Clone a portion of the Bitmap object. Rectangle cloneRect = Rectangle(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 ); }
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.