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ImageCodecInfo class

Applies to: desktop apps only

An ImageCodecInfo object stores information about an image codec (encoder/decoder). GDI+ provides several built-in image codecs. You can obtain information about those codecs by calling the GetImageEncoders function and the GetImageDecoders function. Each of those functions returns an array of ImageCodecInfo objects, one for each available encoder or decoder.

ImageCodecInfo has these types of members:

Data Members

The following table lists the members exposed by the ImageCodecInfo object.

Data Members Type Description
Clsid CLSID Codec identifier.
FormatID GUID File format identifier. GUIDs that identify various file formats (ImageFormatBMP, ImageFormatEMF, and the like) are defined in Gdiplusimaging.h.
CodecName WCHAR * Pointer to a null-terminated string that contains the codec name.
DllName WCHAR * Pointer to a null-terminated string that contains the path name of the DLL in which the codec resides. If the codec is not in a DLL, this pointer is NULL.
FormatDescription WCHAR * Pointer to a null-terminated string that contains the name of the file format used by the codec.
FilenameExtension WCHAR * Pointer to a null-terminated string that contains all file-name extensions associated with the codec. The extensions are separated by semicolons.
MimeType WCHAR * Pointer to a null-terminated string that contains the mime type of the codec.
Flags DWORD Combination of flags from the ImageCodecFlags enumeration.
Version DWORD Integer that indicates the version of the codec.
SigCount DWORD Integer that indicates the number of signatures used by the file format associated with the codec.
SigSize DWORD Integer that indicates the number of bytes in each signature.
SigPattern BYTE * Pointer to an array of bytes that contains the pattern for each signature.
SigMask BYTE * Pointer to an array of bytes that contains the mask for each signature.

 

Requirements

Minimum supported client

Windows XP, Windows 2000 Professional

Minimum supported server

Windows 2000 Server

Product

GDI+ 1.0

Header

Gdiplusimaging.h (include Gdiplus.h)

Library

Gdiplus.lib

See also

EncoderParameter

EncoderParameters

Image::GetEncoderParameterList

Image::GetEncoderParameterListSize

Listing Installed Encoders

Using Image Encoders and Decoders

 

 

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Build date: 3/6/2012