public static extern int imaqReadOCRFile([MarshalAs(UnmanagedType.LPStr)] string fileName, ref CharSet set, String255 setDescription, ref ReadTextOptions readOptions, ref OCRProcessingOptions processingOptions, ref OCRSpacingOptions spacingOptions);
public static extern IntPtr imaqReadText(IntPtr image, ref CharSet set, ref ROI roi, ref ReadTextOptions readOptions, ref OCRProcessingOptions processingOptions, ref OCRSpacingOptions spacingOptions);