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60 lines
1.9 KiB
60 lines
1.9 KiB
// Copyright 2019 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef PUBLIC_FPDF_THUMBNAIL_H_
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#define PUBLIC_FPDF_THUMBNAIL_H_
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#include <stdint.h>
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// NOLINTNEXTLINE(build/include)
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#include "fpdfview.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Experimental API.
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// Gets the decoded data from the thumbnail of |page| if it exists.
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// This only modifies |buffer| if |buflen| less than or equal to the
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// size of the decoded data. Returns the size of the decoded
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// data or 0 if thumbnail DNE. Optional, pass null to just retrieve
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// the size of the buffer needed.
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//
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// page - handle to a page.
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// buffer - buffer for holding the decoded image data.
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// buflen - length of the buffer in bytes.
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FPDF_EXPORT unsigned long FPDF_CALLCONV
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FPDFPage_GetDecodedThumbnailData(FPDF_PAGE page,
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void* buffer,
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unsigned long buflen);
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// Experimental API.
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// Gets the raw data from the thumbnail of |page| if it exists.
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// This only modifies |buffer| if |buflen| is less than or equal to
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// the size of the raw data. Returns the size of the raw data or 0
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// if thumbnail DNE. Optional, pass null to just retrieve the size
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// of the buffer needed.
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//
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// page - handle to a page.
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// buffer - buffer for holding the raw image data.
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// buflen - length of the buffer in bytes.
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FPDF_EXPORT unsigned long FPDF_CALLCONV
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FPDFPage_GetRawThumbnailData(FPDF_PAGE page,
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void* buffer,
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unsigned long buflen);
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// Experimental API.
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// Returns the thumbnail of |page| as a FPDF_BITMAP. Returns a nullptr
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// if unable to access the thumbnail's stream.
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//
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// page - handle to a page.
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FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV
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FPDFPage_GetThumbnailAsBitmap(FPDF_PAGE page);
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#ifdef __cplusplus
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}
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#endif
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#endif // PUBLIC_FPDF_THUMBNAIL_H_
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