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Leadtools.Codecs Namespace > Classes > RasterCodecs > Methods > GetInformation Method > GetInformation(Uri,Boolean,Int32) Method
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GetInformation(Uri,Boolean,Int32) Method
Summary
Gets the specific image page information from the specified Uri.
Syntax
public Leadtools.Codecs.CodecsImageInfo GetInformation(Uri uri,bool totalPages,int pageNumber)
Public Overloads Function GetInformation( _ByVal uri As Uri, _ByVal totalPages As Boolean, _ByVal pageNumber As Integer _) As Leadtools.Codecs.CodecsImageInfo
public Leadtools.Codecs.CodecsImageInfo GetInformation(Uri uri,bool totalPages,int pageNumber)
function Leadtools.Codecs.RasterCodecs.GetInformation(Uri,Boolean,Int32)(uri ,totalPages ,pageNumber)
public:Leadtools.Codecs.CodecsImageInfo^ GetInformation(Uri^ uri,bool totalPages,int pageNumber)
Parameters
uri
The Uri containing the input image data.
totalPages
true to query the URI for total number of pages; false, otherwise.
pageNumber
Page number in the URI to query.
Return Value
A CodecsImageInfo object that contains the information about the specified image.
Remarks
Specifying true for totalPages can cause the process to be slow for files with large number of pages.
LEADTOOLS supports the following URI schemes:
| Scheme | Description |
|---|---|
| UriSchemeFile | Specifies that the URI is a disk file in local machine or universal naming convention (UNC) path. |
| UriSchemeHttp | Specifies that the URI is accessed through the Hypertext Transfer Protocol (HTTP). |
| UriSchemeHttps | Specifies that the URI is accessed through the Secure Hypertext Transfer Protocol (HTTPS). |
| UriSchemeFtp | Specifies that the URI is accessed through the File Transfer Protocol (FTP). |
If uri points to a resource in a UriSchemeHttp, UriSchemeHttps or UriSchemeFtp, then this RasterCodecs will attempt to download image data in an iterative fashion by creating a temporary buffer. The size of this buffer can be determined and changed by setting up the UriOperationBufferSize prior to calling this method.
For authenticity and proxy settings, refer to UriOperationCredentials and UriOperationProxy.
To quickly query the number of an image, use GetTotalPages or GetTotalPagesAsync.
To quickly query the format of an image, use GetFormat or GetFormatAsync.
Example
For an example, refer to GetInformation.
Requirements
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© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
Leadtools.Codecs Assembly
