IWICBitmap interface (wincodec.h)

Defines methods that add the concept of writeability and static in-memory representations of bitmaps to IWICBitmapSource.


The IWICBitmap interface inherits from IWICBitmapSource. IWICBitmap also has these types of members:


The IWICBitmap interface has these methods.

Method Description
IWICBitmap::Lock Provides access to a rectangular area of the bitmap.
IWICBitmap::SetPalette Provides access for palette modifications.
IWICBitmap::SetResolution Changes the physical resolution of the image.


IWICBitmap inherits from IWICBitmapSource and therefore also inherits the CopyPixels method. When pixels need to be moved to a new memory location, CopyPixels is often the most efficient.

Because of the internal memory representation implied by the IWICBitmap, in-place modification and processing using the Lock is more efficient than CopyPixels, usually reducing to a simple pointer access directly into the memory owned by the bitmap rather than a copy. This is contrasted to procedural bitmaps which implement only CopyPixels because there is no internal memory representation and one would need to be created on demand to satisfy a call to Lock.


Minimum supported client Windows XP with SP2, Windows Vista [desktop apps | UWP apps]
Minimum supported server Windows Server 2008 [desktop apps | UWP apps]
Target Platform Windows
Header wincodec.h