| UID | title | description | helpviewer_keywords | old-location | tech.root | ms.assetid | ms.date | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | req.redist | ms.custom | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NN:thumbcache.ISharedBitmap |
ISharedBitmap (thumbcache.h) |
Exposes memory-efficient methods for accessing bitmaps. This interface is used as a thin wrapper around HBITMAP objects, allowing those objects to be reference counted and protected from having their underlying data changed. |
|
shell\ISharedBitmap.htm |
shell |
72be7757-f969-4f4f-ada1-71789b8d1de0 |
12/05/2018 |
ISharedBitmap, ISharedBitmap interface [Windows Shell], ISharedBitmap interface [Windows Shell],described, _shell_ISharedBitmap, shell.ISharedBitmap, thumbcache/ISharedBitmap |
thumbcache.h |
Windows |
Windows Vista [desktop apps only] |
Windows Server 2008 [desktop apps only] |
Thumbcache.idl |
Windows |
19H1 |
|
|
|
|
|
|
Exposes memory-efficient methods for accessing bitmaps. This interface is used as a thin wrapper around HBITMAP objects, allowing those objects to be reference counted and protected from having their underlying data changed.
The ISharedBitmap interface inherits from the IUnknown interface. ISharedBitmap also has these types of members:
This interface is used in conjunction with the methods of IThumbnailCache. Bitmaps returned by IThumbnailCache::GetThumbnail and IThumbnailCache::GetThumbnailByID are of type ISharedBitmap.
When an ISharedBitmap object is retrieved from the thumbnail cache, the underlying bitmap may reside in shared memory to provide improved performance.
The underlying data of the memory-mapped bitmap is protected while the client is accessing it.