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OmrBuffer.SetBubble method

Sets the OMR read-level and the mark style for the following:

Valid

See ScanEventArgs and ScanningManager Events Valid Combinations.

IDL

HRESULT SetBubble(

[in] long Cell;

[in] long Track;

[in] SideOfSheet sos;

[BubbleValue Value);

Input Parameters

Cell

 1

Maximum cell position. OmrBuffer.MaxCell property. This is the read cell position of the bubble along the X-axis of the form.

  0 (zero)

Sets all read cells for one specific timing mark position (Track, below), to the Value used in BubbleValue.

Track

 1

Timing mark position. OmrBuffer.BackTimingMarks property or OmrBuffer.FrontTimingMarks property. This is the timing mark position of the bubble along the Y-axis of the form.
  0 (zero) Sets all read cells in all tracks (the entire buffer) to the Value used in BubbleValue.

SideOfSheet

 const int sosTop top side
  const int sosBottom bottom side
BubbleValue structure Value use the enum OMRLevel
  Zero – F The read-level for the cell.
  NotBuilt The bubble has not been built. This clears out any previous value.
  Style use the enum BubbleType
  btBubble Standard OMR bubble, circle or oval.
  btCheckMark

Check Mark or X mark, rectangular area for an X, check, or other mark. For Image Scanners ONLY, and the side of sheet must have image enabled.

  btTickMark

Tick mark compatible with line read heads. A rectangular response area approximately as wide as a normal OMR position, but only as high as a thick pencil mark. A single horizontal stroke is used to indicate a response. For Image Scanners ONLY, and the side of sheet must have image enabled.

See also

OmrBuffer.GetBubble method

BubbleValue structure

 

 

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