Multiple-File Processing Methods - CaptureVisionRouter Class
Method | Description |
---|---|
SetInput |
Sets an image source to provide images for consecutive processing. |
GetInput |
Gets the attached image source adapter object of the capture vision router. |
AddCaptureStateListener |
Adds an object that listens to the state changes of the capture process. |
RemoveCaptureStateListener |
Removes an object which listens to the state changes of the capture process. |
AddImageSourceStateListener |
Adds an object that listens to state changes of the image source. |
RemoveImageSourceStateListener |
Removes an object which listens to state changes of the image source. |
AddResultReceiver |
Adds an object as the receiver of captured results. |
RemoveResultReceiver |
Removes an object which was added as a receiver of captured results. |
AddResultFilter |
Adds an object as the filter of captured results. |
RemoveResultFilter |
Removes an object which was added as a filter of captured results. |
StartCapturing |
Starts to process images consecutively. |
StopCapturing |
Stops the consecutive processing. |
PauseCapturing |
Pauses the capture process. The current thread will be blocked until the capture process is resumed. |
ResumeCapturing |
Resumes the capture process. The current thread will be unblocked after the capture process is resumed. |
SetInput
Sets an image source to provide images for consecutive processing.
int SetInput(ImageSourceAdapter pAdaptor)
Parameters
[in] pAdaptor
Specifies an object which has implemented the Image Source Adapter Interface.
Return Value
Returns an error code. Zero indicates success.
Error Code | Value | Description |
---|---|---|
EC_CALL_REJECTED_WHEN_CAPTURING | -10062 | Function call is rejected when capturing in progress. |
See Also
GetInput
Gets the attached image source adapter object of the capture vision router.
ImageSourceAdapter GetInput()
Return Value
Returns the attached image source adapter object of the capture vision router.
See Also
AddCaptureStateListener
Adds an object that listens to the state changes of the capture process.
int AddCaptureStateListener(ICaptureStateListener listener)
Parameters
[in] listener
Specifies a listening object of the type ICaptureStateListener
to be added.
Return Value
Returns an error code. Zero indicates success.
See Also
RemoveCaptureStateListener
Removes an object which listens to the state changes of the capture process.
int RemoveCaptureStateListener(ICaptureStateListener listener)
Parameters
[in] listener
Specifies a listening object of the type ICaptureStateListener
to be removed.
Return Value
Returns an error code. Zero indicates success.
See Also
AddImageSourceStateListener
Adds an object that listens to state changes of the image source.
int AddImageSourceStateListener(IImageSourceStateListener listener)
Parameters
[in] listener
Specifies a listening object of the type IImageSourceStateListener
to be added.
Return Value
Returns an error code. Zero indicates success.
See Also
RemoveImageSourceStateListener
Removes an object which listens to state changes of the image source.
int RemoveImageSourceStateListener(IImageSourceStateListener listener)
Parameters
[in] listener
Specifies a listening object of the type IImageSourceStateListener
to be removed.
Return Value
Returns an error code. Zero indicates success.
See Also
AddResultReceiver
Adds an object as the receiver of captured results.
int AddResultReceiver(CapturedResultReceiver receiver)
Parameters
[in] receiver
Specifies a receiver object of the type CapturedResultReceiver
to be added.
Return Value
Returns an error code. Zero indicates success.
See Also
RemoveResultReceiver
Removes an object which was added as a receiver of captured results.
int RemoveResultReceiver(CapturedResultReceiver receiver)
Parameters
[in] receiver
Specifies a receiver object of the type CapturedResultReceiver
to be removed.
Return Value
Returns an error code. Zero indicates success.
See Also
AddResultFilter
Adds an object as the filter of captured results.
int AddResultFilter(CapturedResultFilter filter)
Parameters
[in] filter
Specifies a filter object of the type CapturedResultFilter
to be added.
Return Value
Returns an error code. Zero indicates success.
See Also
RemoveResultFilter
Removes an object which was added as a filter of captured results.
int RemoveResultFilter(CapturedResultFilter filter)
Parameters
[in] filter
Specifies a filter object of the type CapturedResultFilter
to be removed.
Return Value
Returns an error code. Zero indicates success.
See Also
StartCapturing
Starts to process images consecutively.
int StartCapturing(string templateName, bool waitForThreadExit, out string errorMsgBuffer)
Parameters
[in] templateName
Specifies a CaptureVisionTemplate
to use for capturing.
[in] waitForThreadExit
Indicates whether to wait for the capture process to complete before returning.
[out] errorMsgBuffer
Stores any error messages generated during the capturing process.
Remarks
- There are two types of
CaptureVisionTemplate
: the preset ones which come with the SDK and the custom ones that get initialized when the user calls InitSettings / InitSettingsFromFile. - Please be aware that the preset
CaptureVisionTemplates
will be overwritten should the user callInitSettings
/InitSettingsFromFile
and pass his own settings. - If parameter
templateName
is not specified, the preset one named ‘Default’ will be used. However, if the preset ones have been overwritten as described above, the firstCaptureVisionTemplate
from the user’s own settings will be used instead.
Return Value
The function returns an integer value representing the success or failure of the capturing process. A value of 0 indicates success, while a non-zero value indicates failure. Any error messages generated during the capturing process will be returned in errorMsgBuffer
.
Error Code | Value | Description |
---|---|---|
EC_TEMPLATE_NAME_INVALID | -10036 | The target template name is invalid. |
EC_CALL_REJECTED_WHEN_CAPTURING | -10062 | Function call is rejected when capturing in progress. |
EC_NO_IMAGE_SOURCE | -10063 | Can not start capturing before you set the input. |
StopCapturing
Stops the multiple-file processing.
void StopCapturing(bool waitForRemainingTasks = true, bool waitForThreadExit = false)
Parameters
[in] waitForRemainingTasks
Indicates whether to wait for the remaining tasks to complete before returning. The default value is true.
[in] waitForThreadExit
Indicates whether to wait for the capture process to complete before returning. The default value is false.
PauseCapturing
Pauses the capture process. The current thread will be blocked until the capture process is resumed.
void PauseCapturing()
ResumeCapturing
Resumes the capture process. The current thread will be unblocked after the capture process is resumed.
void ResumeCapturing()