CanReadImageRegion(Int32,Int32,DecodingSettings) Method (IRasterGridDecoder)

Vintasoft.Imaging.Codecs.Decoders Namespace / IRasterGridDecoder Interface / CanReadImageRegion(Int32,Int32,DecodingSettings) Method

Syntax Remarks Requirements SeeAlso

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CanReadImageRegion(Int32,Int32,DecodingSettings) Method (IRasterGridDecoder)

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Determines that decoder can read a region of the image.

Syntax

'Declaration

Public Function CanReadImageRegion( _
   ByVal pageIndexThe zero based page index.
 As System.Int32, _
   ByVal scaleScale factor. Possible values: 1 - original image rect should be get; N - reduced image rect should be get.
 As System.Int32, _
   ByVal decodingSettingsThe decoding settings that should be used for decoding of page image.
 As DecodingSettings _
) As Boolean

public bool CanReadImageRegion(
   System.Int32 pageIndex, 
   System.Int32 scale, 
   DecodingSettings decodingSettings
)

public: bool CanReadImageRegion(
   System.Int32 pageIndex, 
   System.Int32 scale, 
   DecodingSettings* decodingSettings
)

public:
bool CanReadImageRegion(
   System.Int32 pageIndex, 
   System.Int32 scale, 
   DecodingSettings^ decodingSettings
)

Parameters

pageIndex: The zero based page index.
scale: Scale factor. Possible values: 1 - original image rect should be get; N - reduced image rect should be get.
decodingSettings: The decoding settings that should be used for decoding of page image.

Return Value

True if decoder can read a region of the image;
false if decoder can read only rectangle of the image.

Remarks

Region represents a rectangular region on the image and composed from a sequence of rectangles.

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

Reference

IRasterGridDecoder Interface
IRasterGridDecoder Members

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