IWICBitmapDecoder::GetThumbnail method

Retrieves a bitmap thumbnail of the image, if one exists

Syntax


HRESULT GetThumbnail(
  [out]  IWICBitmapSource **ppIThumbnail
);

Parameters

ppIThumbnail [out]

Type: IWICBitmapSource**

Receives a pointer to the IWICBitmapSource of the thumbnail.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The returned thumbnail can be of any size, so the caller should scale the thumbnail to the desired size. The only Windows provided image formats that support thumbnails are JPEG, TIFF, and JPEG-XR. If the thumbnail is not available, this will return WINCODEC_ERR_CODECNOTHUMBNAIL.

Requirements

Minimum supported client

Windows XP with SP2, Windows Vista [desktop apps | Windows Store apps]

Minimum supported server

Windows Server 2008 [desktop apps | Windows Store apps]

Header

Wincodec.h

IDL

Wincodec.idl

Library

Windowscodecs.lib

DLL

Windowscodecs.dll

 

 

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