ImageGear.TWAIN Namespace

In This Topic

The ImageGear TWAIN namespace allows you to control any scanner, digital camera, or capture card that has a TWAIN device driver.

Classes

	Class	Description
	ImGearCap	This is a base class for the capability classes.
	ImGearCapArray	This class describes a capability whose value resides in ImGearContainerType.ARRAY container.
	ImGearCapEnumeration	This class describes a capability whose value resides in an ImGearContainerType.ENUMERATION container.
	ImGearCapOneValue	This class describes a capability whose value resides in ImGearContainerType.ONEVALUE container.
	ImGearCapRange	This class describes a capability whose value resides in ImGearContainerType.RANGE container.
	ImGearDataSources	This class holds information about TWAIN data sources.
	ImGearFileInfo	This class holds information about TWAIN file system.
	ImGearTWAIN	Core TWAIN class.
	ImGearTWAINAfterPageEventArgs	Contains arguments for the ImGearTWAIN.AfterPage event.
	ImGearTWAINBeforePageEventArgs	Contains arguments for the ImGearTWAIN.BeforePage event.

Delegates

	Delegate	Description
	ImGearTWAINAfterPageEventHandler	This is the delegate used to pass ImGearTWAIN.AfterPage events on to an application event handler.
	ImGearTWAINBeforePageEventHandler	This is the delegate used to pass ImGearTWAIN.BeforePage events on to an application event handler.

Enumerations

	Enumeration	Description
	ImGearAlarms	This enumeration determines specific audible alarms.
	ImGearAudioFormats	This enumeration determines which Audio file formats are supported.
	ImGearBarcodeRotation	The bar code's orientation on the scanned image.
	ImGearBarcodeSearchModes	This enumeration restricts barcode searching to certain orientations, or prioritizes one orientation over the other.
	ImGearBarcodeType	This enumeration lists different bar code types.
	ImGearBitDepthReduction	This enumeration specifies the Reduction method the Source should use to reduce the bit depth of the data.
	ImGearBitOrder	This enumeration specifies how the bytes in an image are filled by the Source.
	ImGearCapabilities	Supported capabilities.
	ImGearClearBuffers	This enumeration determines the type of buffer clearing process.
	ImGearColorDataFormats	This enumeration allows the application and Source to identify which color data formats are available.
	ImGearContainerType	Capability container type. Defines how the data for a capability is stored.
	ImGearCountries	Country constants.
	ImGearDeskewStatus	Status of the deskew operation.
	ImGearDeviceEvents	This enumeration determines the device event.
	ImGearDuplex	This enumeration determines whether the scanner supports duplex.
	ImGearFeederAlignment	This enumeration determines which special actions application may need to take when negotiating frames with the Source.
	ImGearFeederOrder	This enumeration determines the order of scanning.
	ImGearFileSystem	This enumeration is for an undocumented TWAIN 1.8 capability.
	ImGearFileType	File types in the device's file system.
	ImGearFilterType	This enumeration determines the color characteristic of the subtractive filter applied to the image data.
	ImGearFlashUsed	This enumeration determines which flash the image was acquired to use.
	ImGearFlipRotation	This enumeration determines the orientation of images that flip orientation of every other image.
	ImGearImageFilter	This enumeration determines the algorithm used to improve the quality of the image.
	ImGearJobControl	This enumeration determines how the job can be processed.
	ImGearJPEGQuality	This enumeration specifies the kind of JPEG quantization tables that tradeoff quality versus compressed image size.
	ImGearLanguages	Language constants.
	ImGearLightPath	This enumeration determines whether the image is captured transmissively or reflectively.
	ImGearLightSource	This enumeration determines the general color characteristic of the light source used to acquire the image.
	ImGearMessages	Capability control messages.
	ImGearNoiseFilter	This enumeration selects the algorithm used to remove noise.
	ImGearOrientation	This enumeration determines which edge of the paper the image's top is aligned with.
	ImGearOverscanModes	This enumeration determines the overscanning mode.
	ImGearPatchCode	This enumeration lists different patch code types.
	ImGearPixelFlavor	This enumeration correctly describes the sense of the pixel whose numeric value is zero (minimum data value).
	ImGearPixelType	This enumeration specifies the type of pixel data that a Source is capable of acquiring (for example, black and white, gray, RGB, etc.).
	ImGearPowerSupply	This enumeration reports the kinds of power available to the device.
	ImGearPrinter	This enumeration determines the printer devices being used by application.
	ImGearPrinterModes	This enumeration specifies current printer mode.
	ImGearSupportedSizes	This enumeration specifies the size(s) the Source can/should use to acquire image data.
	ImGearTWAIN.DSMVersion	Specifies which version of the TWAIN Data Source Manager (DSM) to load. Version 1.x is implemented by twain_32.dll found at 'systemroot'. Version 2.x is implemented by TWAINDSM.dll found at 'systemroot\System32' and/or 'systemroot\SysWOW64'. Depending on the installed drivers for the data source, the source may or may not appear in the source list depending on the TWAIN DSM version selected.
	ImGearUnits	This enumeration determines the unit of measure for all quantities.
	ImGearXferType	This enumeration determines which type of transfer mechanisms the application and Source have in common.

Reference

ImageGear.Twain Assembly

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