public interface

# ThumbAsyncHandler

com.pdftron.pdf.ThumbAsyncHandler

## Class Overview

ThumbAsyncHandler is an interface for a custom handler that that can be passed into GetThumbAsync.

## Summary

Public Methods
abstract void | thumbAsyncHandlerProc(int page_num, boolean was_thumb_found, Object thumb_buf, int thumb_width, int thumb_height, Object custom_data) Process thumbnail retrieval results.

## Public Methods

#### public abstract void thumbAsyncHandlerProc (int page_num, boolean was_thumb_found, Object thumb_buf, int thumb_width, int thumb_height, Object custom_data)

Process thumbnail retrieval results.

##### Parameters

page_num | the page number of the thumbnail
was_thumb_found | true if the thumbnail was found in the persistent cache, false otherwise
thumb_buf | the thumbnail data
thumb_width | the width of the thumbnail image, in pixels
thumb_height | the height of the thumbnail image
custom_data | custom data passed into the call to GetThumbAsync