IWICBitmapSourceTransform::GetClosestSize method (wincodec.h)

Returns the closest dimensions the implementation can natively scale to given the desired dimensions.

Syntax

HRESULT GetClosestSize(
  [in, out] UINT *puiWidth,
  [in, out] UINT *puiHeight
);

Parameters

[in, out] puiWidth

Type: UINT*

The desired width. A pointer that receives the closest supported width.

[in, out] puiHeight

Type: UINT*

The desired height. A pointer that receives the closest supported height.

Return value

Type: HRESULT

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

Remarks

The Windows provided codecs provide the following support for native scaling:

• BMP, ICO, GIF, TIFF: No implementation of IWICBitmapSourceTransform.
• PNG: No scaling support.
• JPEG: Native down-scaling by a factor of 8, 4, or 2.
• JPEG-XR: Native scaling of the original image by powers of 2.

Requirements