C#
VB
WinRT C#
C++
Leadtools.Codecs Namespace > Classes > RasterCodecs > Methods > ReadLoadResolutionsAsync Method > ReadLoadResolutionsAsync(ILeadStream,Int32) Method
←Select platform
ReadLoadResolutionsAsync(ILeadStream,Int32) Method
Summary
Examines a stream to determine which resolutions it contains.
Syntax
public IAsyncOperation<IVector<LeadSize>> ReadLoadResolutionsAsync(ILeadStream stream,int pageNumber)
Public Overloads Function ReadLoadResolutionsAsync( _ByVal stream As ILeadStream, _ByVal pageNumber As Integer _) As IAsyncOperation(Of IVector(Of LeadSize))
public IAsyncOperation<IVector<LeadSize>> ReadLoadResolutionsAsync(ILeadStream stream,int pageNumber)
function Leadtools.Codecs.RasterCodecs.ReadLoadResolutionsAsync(ILeadStream,Int32)(stream ,pageNumber)
public:IAsyncOperation<IVector<LeadSize>^>^ ReadLoadResolutionsAsync(ILeadStream^ stream,int pageNumber)
Parameters
stream
A ILeadStream containing the data of the image file to query.
pageNumber
An Int32 that indicates the page number.
Return Value
When this method completes, it returns the available resolutions as an array of LeadSize structures.
Remarks
A FlashPix, PhotoCD, ECW, JPEG 2000 or JBIG/JBIG2 file can contain more than one copy of the same image, each at a different physical resolution (width and height in pixels).
The pages numbers start with 1, so set pageNumber to 2 to read the resolutions from the second page. If you set pageNumber to 1, the function behaves like the equivalent function without the pageNumber parameter.
After you get the available resolutions, you can use any of the following to specify the one to be loaded:
- CodecsJbigLoadOptions.Resolution
- CodecsJpeg2000LoadOptions.J2kResolution
- CodecsJpeg2000LoadOptions.CmwResolution
- CodecsFpxLoadOptions.Resolution
- CodecsPcdLoadOptions.Resolution
- CodecsEcwLoadOptions.Resolution
For more information, refer to Implementing JBIG Features.
Requirements
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
Leadtools.Codecs Assembly
