OmrHelper is the interface that represents the OMR data of a scanned sheet, resulting from a Diagnose command or Scan command. It is returned as a parameter on the ScanEventArgs.OmrHelper property.
This interface has been enhanced to allow the solution to build bubbles at the SheetAcquired event. You can also query for and set the number and location of timing marks. You can also query for and set the bubble targets.
The OmrHelper interface is available at all events where there is a current sheet context.
The alphabetic list of properties/method is provided below. For complete details, see the topic specific to each property/method.
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OmrHelper |
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Property |
Type and Description |
| BackBubbleOffsets | Array. A 1-dimenstional array with lower bound 0. . |
| BackTimingMarks | Array.A 1-dimenstional array with lower bound 0. . |
| BubbleMaskHeight | Long. Returns the height of the bubble mask used to resolve bubbles |
| BubbleMaskWidth | Long. Returns the width of the bubble mask used to resolve bubbles. |
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Boolean. Whether or not bubbles are built in the OmrBuffer only when the solution program makes a call to OmrHelper.BuildBubble method. |
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| FrontBubbleOffsets | Array. .A 1-dimenstional array with lower bound 0. |
| FrontTimingMarks | Array. .A 1-dimenstional array with lower bound 0. |
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Returns the OmrBuffer object which allows access to the OMR buffer. |
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| TimingMarkTolerance | Long. Indicates that you are performing a custom skew check within your SheetAcquired event handler. |
| TraceBubbles | Boolean. Turns the bubble trace on or off. |
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Methods |
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Builds a bubble in the OMR buffer. |
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