Figure 1 기본 제공 WIC 코덱을 위한 CLSID

형식	디코더	인코더
BMP	CLSID_WICBmpDecoder	CLSID_WICBmpEncoder
PNG	CLSID_WICPngDecoder	CLSID_WICPngEncoder
ICO	CLSID_WICIcoDecoder	사용할 수 없음
JPEG	CLSID_WICJpegDecoder	CLSID_WICJpegEncoder
GIF	CLSID_WICGifDecoder	CLSID_WICGifEncoder
TIFF	CLSID_WICTiffDecoder	CLSID_WICTiffEncoder
HDP	CLSID_WICWmpDecoder	CLSID_WICWmpEncoder

 Figure 2 CopyIconToTiff

 HRESULT CopyIconToTiff(
   IStream* sourceStream,
   IStream* targetStream) {

  // Prepare the ICO decoder

  CComPtr<IWICBitmapDecoder> decoder;
  HR(decoder.CoCreateInstance(CLSID_WICIcoDecoder));

  HR(decoder->Initialize(
    sourceStream,
    WICDecodeMetadataCacheOnDemand));

  // Prepare the TIFF encoder

  CComPtr<IWICBitmapEncoder> encoder;
  HR(encoder.CoCreateInstance(CLSID_WICTiffEncoder));

  HR(encoder->Initialize(
    targetStream,
    WICBitmapEncoderNoCache));

  UINT frameCount = 0;
  HR(decoder->GetFrameCount(&frameCount));

  for (UINT index = 0; index < frameCount; ++index) {
    // Get the source frame info

    CComPtr<IWICBitmapFrameDecode> sourceFrame;

    HR(decoder->GetFrame(index, &sourceFrame));

    UINT width = 0;
    UINT height = 0;
    HR(sourceFrame->GetSize(&width, &height));

    GUID pixelFormat = { 0 };
    HR(sourceFrame->GetPixelFormat(&pixelFormat));

    // Prepare the target frame

    CComPtr<IWICBitmapFrameEncode> targetFrame;

    HR(encoder->CreateNewFrame(
      &targetFrame,
      0)); // no properties

    HR(targetFrame->Initialize(0)); // no properties

    HR(targetFrame->SetSize(width, height));
    HR(targetFrame->SetPixelFormat(&pixelFormat));

    // Copy the pixels and commit frame

    HR(targetFrame->WriteSource(sourceFrame, 0));
    HR(targetFrame->Commit());
  }

  // Commit image to stream

  HR(encoder->Commit());

  return S OK;
}

 Figure 3 컨테이너 형식 GUID

형식	GUID
BMP	GUID_ContainerFormatBmp
PNG	GUID_ContainerFormatBmp
ICO	GUID_ContainerFormatIco
JPEG	GUID_ContainerFormatJpeg
GIF	GUID_ContainerFormatGif
TIFF	GUID_ContainerFormatTiff
HDP	GUID_ContainerFormatWmp

 Figure 4 C# 및 WPF로 다시 작성한 CopyIconToTiff

static void CopyIconToTiff(Stream sourceStream,
                           Stream targetStream) {

  IconBitmapDecoder decoder = new IconBitmapDecoder(
    sourceStream,
    BitmapCreateOptions.None,
    BitmapCacheOption.OnDemand);

  TiffBitmapEncoder encoder = new TiffBitmapEncoder();

  foreach (BitmapFrame frame in decoder.Frames) {
    encoder.Frames.Add(frame);
  }

  encoder.Save(targetStream);
}

Kenny에게 질문이나 의견이 있으면 다음 전자 메일 주소로 보내시기 바랍니다: mmwincpp@microsoft.com.