> ## Documentation Index > Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt > Use this file to discover all available pages before exploring further. # ScanSourceCapabilities Object (IScanSourceCapabilities Interface) > ScanSourceCapabilities object (IScanSourceCapabilities interface) in the ABBYY FineReader Engine API — This object provides access to possible settings of the scanning source. This object is implemented in FRE for Windows. This object provides access to possible settings of the scanning source. The properties cannot be changed because they correspond to actual capabilities of the scanner. ## Properties | Name | Type | Description | | ---------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Application | [Engine](/fine-reader/engine/api-reference/engine-object-iengine-interface), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties) | Returns the Engine object. | | BrightnessControls | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Describes possible brightness control modes of the scanning source as bitwise OR of [ScanBrightnessControlEnum](/fine-reader/engine/api-reference/enumerations/scanbrightnesscontrolenum) constants. | | ColorModes | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Describes possible color modes of the scanning source as bitwise OR of [ScanColorModeEnum](/fine-reader/engine/api-reference/enumerations/scancolormodeenum) constants. | | [Compressions](/fine-reader/engine/api-reference/mechanism-objects/scansourcecapabilities/compressions-property) | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Returns the possible compression mode for the specified color mode. The result is a bitwise OR of [ScanCompressionTypeEnum](/fine-reader/engine/api-reference/enumerations/scancompressiontypeenum) constants. | | CorrectSkewSupported | [VARIANT\_BOOL](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | TRUE if the scanner supports automatic skew correction, and FALSE otherwise. | | DiscardBlankPagesSupported | [VARIANT\_BOOL](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | TRUE if the scanner supports automatic removal of blank pages, and FALSE otherwise. | | HasDuplexMode | [VARIANT\_BOOL](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Specifies whether the scanner is capable of scanning duplex, that is, automatically scanning both sides of the page being processed. | | MaxPaperHeight | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Specifies the maximum height of the page possible for scanning in milli-inches. | | MaxPaperWidth | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Specifies the maximum width of the page possible for scanning in milli-inches. | | PaperFeedModes | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Describes the possible paper source as bitwise OR of [ScanPaperFeedModeEnum](/fine-reader/engine/api-reference/enumerations/scanpaperfeedmodeenum) constants. | | PaperSizes | [IntsCollection](/fine-reader/engine/api-reference/supplementary-objects-and-methods/intscollection), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties) | Returns a list of possible page sizes for the scanner. The values in this list correspond to the constants of [ScanPaperSizeEnum](/fine-reader/engine/api-reference/enumerations/scanpapersizeenum). | | Resolutions | [IntsCollection](/fine-reader/engine/api-reference/supplementary-objects-and-methods/intscollection), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties) | A collection of possible resolutions for this scanning source. | | RotationAngles | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Describes possible rotation angles as bitwise OR of [ScanRotationAngleEnum](/fine-reader/engine/api-reference/enumerations/scanrotationangleenum) constants. | | RotationEnabled | [VARIANT\_BOOL](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only | Specifies whether the scanner supports automatic rotation of scanned pages. | ## Related objects ScanSourceCapabilities[](/fine-reader/engine/api-reference/supplementary-objects-and-methods/intscollection)[](/fine-reader/engine/api-reference/supplementary-objects-and-methods/intscollection)[](/fine-reader/engine/api-reference/mechanism-objects/scansource#capabilities)[](/fine-reader/engine/api-reference/mechanism-objects/scansource) [Object Diagram](/fine-reader/engine/api-reference/object-diagram) ## Samples This object is used in the [Scanning](/fine-reader/engine/guided-tour/samples#scanning) code sample. ## See also [Scanning](/fine-reader/engine/guided-tour/basic-usage-scenarios-implementation/scanning) [Working with Properties](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties)