How to get recognized text?

Please note that only text, table, and barcode blocks contain text after recognition. Other blocks have no text.

To access the recognized text of a block, do the following:

For text blocks
Use the ITextBlock::Text property.

For table blocks

  • Receive the collection of table cells using the ITableBlock::Cells property.
  • Select the desired cell. Use the methods of the TableCells object.
  • Receive the block object of the cell (the ITableCell::Block property).
  • Check that the block is of type BT_Text (the IBlock::Type property) and receive the TextBlock object using the IBlock::GetAsTextBlock method.
  • Use the ITextBlock::Text property.

For barcode blocks
Receive the barcode text using the IBarcodeBlock::BarcodeText or IBarcodeBlock::Text property. The first one returns the BarcodeText object, which is a collection of characters of the recognized barcode (the BarcodeSymbol objects). The second one returns the text of the barcode as a single string. The BarcodeText allows you to edit the text of the barcode. The IBarcodeBlock::Text property is read-only.

Please find below C# code snippet which shows how to get all text from TextBlock objects and write it to the string:

string text = "";

for ( int i = 0; i < frDocument.Pages.Count; i++ ){
	FREngine.LayoutBlocks blocks = frDocument.Pages[i].Layout.Blocks;
	for ( int j = 0; j < blocks.Count; j++ ){
		FREngine.IBlock block = blocks.Item(j);
		if (block.Type == FREngine.BlockTypeEnum.BT_Text){
			FREngine.TextBlock textBlock = block.GetAsTextBlock();
			for (int k = 0; k < textBlock.Text.Paragraphs.Count; k++){
				FREngine.Paragraph paragraph = textBlock.Text.Paragraphs[k];
				text += paragraph.Text;
			}
		}
	}
}

For more information about using these methods please refer to the Developer’s Help and our standard sample “RecognizedTextProcessing”.

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