VintaSoft Imaging .NET SDK 15.1: Documentation for .NET developer
Vintasoft.Imaging.Codecs.Decoders Namespace / IRasterGridDecoder Interface / GetImageRegion(Int32,Int32,Int32,Int32,DecodingSettings,EventHandler<ProgressEventArgs>,EventHandler<IntermediateImageRequestEventArgs>) Method
Syntax Exceptions Requirements SeeAlso
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GetImageRegion(Int32,Int32,Int32,Int32,DecodingSettings,EventHandler<ProgressEventArgs>,EventHandler<IntermediateImageRequestEventArgs>) Method (IRasterGridDecoder)
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Returns a scaled region of raster image.
Syntax
'Declaration

Public Function GetImageRegion( _
ByVal pageIndex
The zero based page index.
As System.Int32, _
ByVal leftTopRectIndex
The zero based index of left-top rectangle.
As System.Int32, _
ByVal rightBottomRectIndex
The zero based index of right-bottom rectangle.
As System.Int32, _
ByVal scale
Scale factor. Possible values: 1 - original image rect should be get; N - reduced image rect should be get.
As System.Int32, _
ByVal decodingSettings
Decoding settings.
As DecodingSettings, _
ByVal imageLoadingProgress
Delegate of the image loading progress. Can be set to null (Nothing in Visual Basic).
As System.EventHandler(Of ProgressEventArgs), _
ByVal intermediateImageRequest
Delegate for requesting intermediate image. Can be set to null (Nothing in Visual Basic)
As System.EventHandler(Of IntermediateImageRequestEventArgs) _
) As Vintasoft.Imaging.VintasoftImage

Parameters

pageIndex
The zero based page index.
leftTopRectIndex
The zero based index of left-top rectangle.
rightBottomRectIndex
The zero based index of right-bottom rectangle.
scale
Scale factor. Possible values: 1 - original image rect should be get; N - reduced image rect should be get.
decodingSettings
Decoding settings.
imageLoadingProgress
Delegate of the image loading progress. Can be set to null (Nothing in Visual Basic).
intermediateImageRequest
Delegate for requesting intermediate image. Can be set to null (Nothing in Visual Basic)

Return Value

Scaled region of image.
Exceptions
ExceptionDescription
Thrown if reading of image regions is not supported for specified page.
Requirements

Target Platforms: .NET 10; .NET 9; .NET 8; .NET 7; .NET 6; .NET Framework 4.8, 4.7, 4.6, 4.5, 4.0, 3.5

See Also