Atalasoft DotImage 11.4
Atalasoft DotImage Class Library
Atalasoft.Twain
Device Class
Device Methods
Acquire Method
CanOpen Method
ClearBuffers Method
Close Method
Disable Method
Dispose Method
Enable Method
EnableCamera Method
Finalize Method
GetConditionCode Method
GetFrames Method
GetQueryOperations Method
GetSupportedBarCodes Method
GetSupportedBitDepthReductionModes Method
GetSupportedBitDepths Method
GetSupportedBrightnessValues Method
GetSupportedCapabilities Method
GetSupportedCompressionModes Method
GetSupportedContrastValues Method
GetSupportedExposureTimes Method
GetSupportedExtendedCapabilities Method
GetSupportedFlashModes Method
GetSupportedFrameSizes Method
GetSupportedHalftones Method
GetSupportedHighlightValues Method
GetSupportedIccProfileOptions Method
GetSupportedImageFilters Method
GetSupportedImageFormats Method
GetSupportedJobControls Method
GetSupportedJpegPixelTypes Method
GetSupportedJpegQualityValues Method
GetSupportedLanguageTypes Method
GetSupportedLightPathModes Method
GetSupportedLightSourceModes Method
GetSupportedMaxBatchBuffers Method
GetSupportedNativeResolutions Method
GetSupportedNoiseFilterModes Method
GetSupportedOrientationModes Method
GetSupportedOverscanModes Method
GetSupportedPatchCodes Method
GetSupportedPixelTypes Method
GetSupportedPowerSupplies Method
GetSupportedPrinterModes Method
GetSupportedPrinters Method
GetSupportedResolutions Method
GetSupportedRotations Method
GetSupportedScalingValues Method
GetSupportedShadowValues Method
GetSupportedThresholdValues Method
GetSupportedTransferMethods Method
GetSupportedUnitTypes Method
GetSupportedZoomFactors Method
LoadParameters Method
LoadXmlParameters Method
Open Method
PreFilterMessage Method
QueryCapability Method
SaveParameters Method
SaveXmlParameters Method
SetCameraPixelOrder Method
SetExtendedCapabilities Method
SetExtendedImageInfoOptions Method
SetFrames Method
SetImageDataset Method
SetImprinterEndorser Method
ShowUserInterface Method
StartAutomaticCapture Method
ToString Method
TryOpen Method
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DeviceCanOpen Method

Note: This API is now obsolete.

This method may be removed in a future version. New applications should use the TryOpen method instead.

Returns a value indicating whether or not the Open method can currently be used on the device.

Namespace:  Atalasoft.Twain
Assembly:  Atalasoft.DotTwain (in Atalasoft.DotTwain.dll) Version: 11.4.0.9.0.377 (.NET 4.5.2, x86)
Syntax
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[ObsoleteAttribute("CanOpen may be removed in a future release. Use TryOpen instead.", 
	false)]
public bool CanOpen()

Return Value

Type: Boolean
True if the Open method can currently be used on the device.
Remarks

Use this method to test if a device is available instead of using the Open method and catching the exception if it fails.

This method will return false if the device is already open.

Some drivers will display a message box when the device is not connected or powered off. DotTwain has no control over this message box

See Also