SaveAsIStream Method (GdPictureImaging)

In This Topic

Saves a GdPicture image to an IStream. This methods can generate multipage tiff file if the input GdPicture image is an editable multipage tiff.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration

 

Public Function SaveAsIStream( _

   ByVal ImageID As Integer, _

   ByVal Stream As IStream, _

   ByVal ImageFormat As DocumentFormat, _

   ByVal EncoderParameter As Integer _

) As GdPictureStatus

public GdPictureStatus SaveAsIStream( 

   int ImageID,

   IStream Stream,

   DocumentFormat ImageFormat,

   int EncoderParameter

)

public function SaveAsIStream( 

    ImageID: Integer;

    Stream: IStream;

    ImageFormat: DocumentFormat;

    EncoderParameter: Integer

): GdPictureStatus;

public function SaveAsIStream( 

   ImageID : int,

   Stream : IStream,

   ImageFormat : DocumentFormat,

   EncoderParameter : int

) : GdPictureStatus;

public: GdPictureStatus SaveAsIStream( 

   int ImageID,

   IStream* Stream,

   DocumentFormat ImageFormat,

   int EncoderParameter

)

public:

GdPictureStatus SaveAsIStream( 

   int ImageID,

   IStream^ Stream,

   DocumentFormat ImageFormat,

   int EncoderParameter

)

Parameters

ImageID

GdPicture image identifier.

Stream

The IStream object to save the image.

ImageFormat

A member of the DocumentFormat enumeration. Currently supported formats are:

DocumentFormatBMP.

DocumentFormatJPEG.

DocumentFormatPNG.

DocumentFormatTIFF.

DocumentFormatGIF.

DocumentFormatJ2K (JPEG2000 codestream).

DocumentFormatJP2 (JPEG2000)

DocumentFormatTARGA.

DocumentFormatEXR.

DocumentFormatWBMP.

DocumentFormatXPM.

DocumentFormatPBM.

DocumentFormatWMF.

DocumentFormatWEBP.

EncoderParameter

Compression or encoding quality to use.

For JPEG format: the parameter defines the quality between 1 (lower) and 100 (higher).

For WebP format: the parameter defines the quality between 1 (lower) and 100 (higher - lossless encoding).

For TIFF format: the parameter defines the compression scheme to be used: 1 for none, 2 for RLE, 3 for CCITT3, 4 for CCITT4, 5 for LZW, 7 for JPEG, 32946 for Deflate and 65536 for automatic compression adjustment. For more options the SaveAsTiff() method taking a Stream object as parameter can be used.

For JPEG2000 format: the parameter defines the compression rate Between [1(MaxQuality - Lossless) ... 512(Poor quality)]. Default value is 16.

For PNG format: the parameter defines the compression level Between [0(no compression - faster encoding) ... 9(max compression - slower encoding)]. Default value is 6.

For other formats use 0.

Return Value

A member of the GdPictureStatus enumeration.

Remarks

This method requires the Image Documents component to run.

Reference

GdPictureImaging Class
GdPictureImaging Members