IWICFormatConverterInfo::GetPixelFormats method (wincodec.h)
Retrieves a list of GUIDs that signify which pixel formats the converter supports.
Syntax
HRESULT GetPixelFormats(
[in] UINT cFormats,
[in, out] WICPixelFormatGUID *pPixelFormatGUIDs,
[out] UINT *pcActual
);
Parameters
[in] cFormats
Type: UINT
The size of the pPixelFormatGUIDs array.
[in, out] pPixelFormatGUIDs
Type: WICPixelFormatGUID*
Pointer to a GUID array that receives the pixel formats the converter supports.
[out] pcActual
Type: UINT*
The actual array size needed to retrieve all pixel formats supported by the converter.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
The format converter does not necessarily guarantee symmetricality with respect to conversion; that is, a converter may be able to convert FROM a particular format without actually being able to convert TO a particular format. In order to test symmetricality, use CanConvert.
To determine the number of pixel formats a converter can handle, set cFormats to 0
and pPixelFormatGUIDs to NULL
. The converter will fill pcActual with the number of formats supported by that converter.
Requirements
Requirement | Value |
---|---|
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 |
Library | Windowscodecs.lib |
DLL | Windowscodecs.dll |