Source code of Windows XP (NT5)
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6.3 KiB

import "oleidl.idl";
import "shobjidl.idl";
import "propidl.idl";
interface IShellImageDataFactory;
interface IShellImageData;
interface IShellImageDataAbort;
interface IHWEventHandler;
// external definitions
cpp_quote("#if !defined(_GDIPLUSPIXELFORMATS_H)")
typedef DWORD PixelFormat;
cpp_quote("#endif")
cpp_quote("#if !defined(_GDIPLUSENUMS_H)")
typedef DWORD InterpolationMode;
cpp_quote("#endif")
cpp_quote("#if !defined(_GDIPLUSHEADERS_H)")
typedef BYTE EncoderParameters;
typedef BYTE Image;
cpp_quote("#endif")
// property bag strings for SetEncoderParams
cpp_quote("#define SHIMGKEY_QUALITY L\"Compression\"")
cpp_quote("#define SHIMGKEY_RAWFORMAT L\"RawDataFormat\"")
cpp_quote("")
// Decode() flags (bit fields)
cpp_quote("#define SHIMGDEC_DEFAULT 0x00000000") // creates a full Image
cpp_quote("#define SHIMGDEC_THUMBNAIL 0x00000001") // decodes only thumbnail image
cpp_quote("#define SHIMGDEC_LOADFULL 0x00000002") // load the whole file into memory
// Some custom error codes
cpp_quote("#define E_NOTVALIDFORANIMATEDIMAGE MAKE_HRESULT(SEVERITY_ERROR, FACILITY_ITF, 0x01)") // operation is not valid for animated images, for example IShellImageData::Rotate will fail for animated images with this code
[
helpstring("IShellImageDataFactory"),
uuid(9be8ed5c-edab-4d75-90f3-bd5bdbb21c82),
object,
pointer_default(unique)
]
interface IShellImageDataFactory : IUnknown
{
HRESULT CreateIShellImageData(
[out] IShellImageData **ppshimg);
// Easy functions for loading and saving from a file or stream
HRESULT CreateImageFromFile(
[in] LPCWSTR pszPath,
[out] IShellImageData **ppshimg);
HRESULT CreateImageFromStream(
[in] IStream *pStream,
[out] IShellImageData **ppshimg);
// looks up the extension in the registry, gets the content type, and looks up the appropriate IMGFMT_*
// value.
HRESULT GetDataFormatFromPath(
[in] LPCWSTR pszPath,
[out] GUID *pDataFormat);
}
[
helpstring("IShellImageData"),
uuid(bfdeec12-8040-4403-a5ea-9e07dafcf530),
object,
pointer_default(unique)
]
interface IShellImageData : IUnknown
{
// Start the decode process setting state (for thumbnails etc)
HRESULT Decode(
[in] DWORD dwFlags,
[in] ULONG cxDesired,
[in] ULONG cyDesired);
// Draw the current image to the screen
HRESULT Draw(
[in] HDC hdc,
[in] LPRECT prcDest,
[in] LPRECT prcSrc);
// Multipage support
// switches to next frame if it's available
// starts decoder and returns E_PENDING if next frame is not available yet
// will loop or return E_NOMOREDATA based on the image contents
HRESULT NextFrame();
// dumps any animation data, switchs to the next page, and resets the animation data for that page.
// Returns E_NOMOREDATA if there is no next page.
HRESULT NextPage();
HRESULT PrevPage();
//
// Query functions. They return S_OK if condition is true, S_FALSE if not. Use should be
// self-explanatory from function name...
//
HRESULT IsTransparent();
HRESULT IsAnimated();
HRESULT IsVector();
HRESULT IsMultipage();
HRESULT IsEditable();
HRESULT IsPrintable();
HRESULT IsDecoded();
// step through the pages in the image
HRESULT GetCurrentPage(
[out] ULONG *pnPage);
HRESULT GetPageCount(
[out] ULONG *pcPages);
HRESULT SelectPage(
[in] ULONG iPage);
// Fetch information on image
HRESULT GetSize(
[out] SIZE *pSize);
HRESULT GetRawDataFormat(
[out] GUID *pDataFormat);
HRESULT GetPixelFormat(
[out] PixelFormat *pFormat);
HRESULT GetDelay(
[out] DWORD *pdwDelay); // delay can be different for every frame
// dwMode is STGM_* flags
HRESULT GetProperties(
[in] DWORD dwMode,
[out] IPropertySetStorage **ppPropSet);
//
// Rotate with specified angle in 90 degree increments
//
HRESULT Rotate(
[in] DWORD dwAngle);
// Scale with aspect correction when one of the scale factors is 0.
// Scale to specified dimensions if both values are non-zero
// examples: Scale(300, 0) sets X to 300 and Y to the correct scaled value based on X
// Scale(0, 200) sets Y to 200 and X to the correct scaled value based on Y
// Scale(150, 75) sets X to 150 and Y to 75
HRESULT Scale(
[in] ULONG cx,
[in] ULONG cy,
[in] InterpolationMode hints);
HRESULT DiscardEdit();
//
// KENSY
// Instead of Commit we will depend on people to do IPersistFile::Save, IPersistStream::Save,
// etc. Need to give them control over output format and quality among other things...
//
HRESULT SetEncoderParams(
[in] IPropertyBag *pbagEnc);
HRESULT DisplayName(
[in, out] LPWSTR wszName,
[in] UINT cch);
HRESULT GetResolution( // DPI
[out] ULONG *puResolutionX,
[out] ULONG *puResolutionY);
HRESULT GetEncoderParams( // possible values for encoder params, given a format
[in] GUID *pguidFmt,
[out] EncoderParameters **ppEncParams);
// Set a callback abort object; optionally returns previous
HRESULT RegisterAbort(
[in] IShellImageDataAbort *pAbort,
[out,optional] IShellImageDataAbort **ppAbortPrev);
HRESULT CloneFrame( // return a clone of the GDI+ Image being worked on
[out] Image **ppImg);
HRESULT ReplaceFrame( // replace the current frame with a new Image
[in] Image *pImg);
}
[
helpstring("IShellImageDataAbort"),
uuid(53fb8e58-50c0-4003-b4aa-0c8df28e7f3a),
object,
pointer_default(unique)
]
interface IShellImageDataAbort : IUnknown
{
HRESULT QueryAbort(); // S_OK = continue; S_FALSE = abort
}
[
uuid(0b8aff06-8df0-4f13-8e25-25b2319c436a), // LIBID_ShellImageData
helpstring("Microsoft Shell Image library"),
lcid(0x0000),
version(1.0)
]
library ShellImageData
{
// CLSID_ShellImageDataFactory
[ uuid(66e4e4fb-f385-4dd0-8d74-a2efd1bc6178) ] coclass ShellImageDataFactory { [default] interface IShellImageDataFactory; }
// CLSID_AutoplayForSlideShow
[ uuid(00E7B358-F65B-4dcf-83DF-CD026B94BFD4) ] coclass AutoplayForSlideShow { [default] interface IHWEventHandler; }
};