THPDFOCRRequest Record

Describes one rendered loaded page and the limits an IHPDFOCREngine must honour

字段

• PageIndex, DPI，以及 PageRotation identify the rendered page and normalised rotation
• PageLeft, PageBottom, PageRight，以及 PageTop expose the media box in PDF user space
• Bitmap is a borrowed top-left-origin page raster valid only during Recognize
• MaxWords 和 MaxTextCodeUnits expose the remaining per-call budgets
• CancellationToken enables cooperative cancellation and may be nil

IHPDFOCREngine Interface