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Diffstat (limited to 'public/fpdfview.h')
| -rw-r--r-- | public/fpdfview.h | 714 |
1 files changed, 355 insertions, 359 deletions
diff --git a/public/fpdfview.h b/public/fpdfview.h index 9794d5fd00..91787dfa23 100644 --- a/public/fpdfview.h +++ b/public/fpdfview.h @@ -1,49 +1,46 @@ // Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. - + // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com // NOTE: External docs refer to this file as "fpdfview.h", so do not rename // despite lack of consitency with other public files. -#ifndef _FPDFVIEW_H_ -#define _FPDFVIEW_H_ +#ifndef PUBLIC_FPDFVIEW_H_ +#define PUBLIC_FPDFVIEW_H_ #if defined(_WIN32) && !defined(__WINDOWS__) #include <windows.h> #endif // Data types -typedef void* FPDF_MODULEMGR; +typedef void* FPDF_MODULEMGR; // PDF types -typedef void* FPDF_DOCUMENT; -typedef void* FPDF_PAGE; -typedef void* FPDF_PAGEOBJECT; // Page object(text, path, etc) -typedef void* FPDF_PATH; -typedef void* FPDF_CLIPPATH; -typedef void* FPDF_BITMAP; -typedef void* FPDF_FONT; - -typedef void* FPDF_TEXTPAGE; -typedef void* FPDF_SCHHANDLE; -typedef void* FPDF_PAGELINK; -typedef void* FPDF_HMODULE; -typedef void* FPDF_DOCSCHHANDLE; - -typedef void* FPDF_BOOKMARK; -typedef void* FPDF_DEST; -typedef void* FPDF_ACTION; -typedef void* FPDF_LINK; -typedef void* FPDF_PAGERANGE; +typedef void* FPDF_DOCUMENT; +typedef void* FPDF_PAGE; +typedef void* FPDF_PAGEOBJECT; // Page object(text, path, etc) +typedef void* FPDF_PATH; +typedef void* FPDF_CLIPPATH; +typedef void* FPDF_BITMAP; +typedef void* FPDF_FONT; +typedef void* FPDF_TEXTPAGE; +typedef void* FPDF_SCHHANDLE; +typedef void* FPDF_PAGELINK; +typedef void* FPDF_HMODULE; +typedef void* FPDF_DOCSCHHANDLE; +typedef void* FPDF_BOOKMARK; +typedef void* FPDF_DEST; +typedef void* FPDF_ACTION; +typedef void* FPDF_LINK; +typedef void* FPDF_PAGERANGE; // Basic data types -typedef int FPDF_BOOL; -typedef int FPDF_ERROR; -typedef unsigned long FPDF_DWORD; - -typedef float FS_FLOAT; +typedef int FPDF_BOOL; +typedef int FPDF_ERROR; +typedef unsigned long FPDF_DWORD; +typedef float FS_FLOAT; // Duplex types typedef enum _FPDF_DUPLEXTYPE_ { @@ -54,19 +51,19 @@ typedef enum _FPDF_DUPLEXTYPE_ { } FPDF_DUPLEXTYPE; // String types -typedef unsigned short FPDF_WCHAR; -typedef unsigned char const* FPDF_LPCBYTE; +typedef unsigned short FPDF_WCHAR; +typedef unsigned char const* FPDF_LPCBYTE; // FPDFSDK may use three types of strings: byte string, wide string (UTF-16LE encoded), and platform dependent string -typedef const char* FPDF_BYTESTRING; +typedef const char* FPDF_BYTESTRING; -typedef const unsigned short* FPDF_WIDESTRING; // Foxit PDF SDK always use UTF-16LE encoding wide string, - // each character use 2 bytes (except surrogation), with low byte first. +typedef const unsigned short* FPDF_WIDESTRING; // Foxit PDF SDK always use UTF-16LE encoding wide string, + // each character use 2 bytes (except surrogation), with low byte first. // For Windows programmers: for most case it's OK to treat FPDF_WIDESTRING as Windows unicode string, -// however, special care needs to be taken if you expect to process Unicode larger than 0xffff. +// however, special care needs to be taken if you expect to process Unicode larger than 0xffff. // For Linux/Unix programmers: most compiler/library environment uses 4 bytes for a Unicode character, -// you have to convert between FPDF_WIDESTRING and system wide string by yourself. +// you have to convert between FPDF_WIDESTRING and system wide string by yourself. #ifdef _WIN32_WCE typedef const unsigned short* FPDF_STRING; @@ -79,12 +76,12 @@ typedef const char* FPDF_STRING; /** @brief Matrix for transformation. */ typedef struct _FS_MATRIX_ { - float a; /**< @brief Coefficient a.*/ - float b; /**< @brief Coefficient b.*/ - float c; /**< @brief Coefficient c.*/ - float d; /**< @brief Coefficient d.*/ - float e; /**< @brief Coefficient e.*/ - float f; /**< @brief Coefficient f.*/ + float a; /**< @brief Coefficient a.*/ + float b; /**< @brief Coefficient b.*/ + float c; /**< @brief Coefficient c.*/ + float d; /**< @brief Coefficient d.*/ + float e; /**< @brief Coefficient e.*/ + float f; /**< @brief Coefficient f.*/ } FS_MATRIX; #endif @@ -93,19 +90,19 @@ typedef struct _FS_MATRIX_ /** @brief Rectangle area(float) in device or page coordination system. */ typedef struct _FS_RECTF_ { - /**@{*/ - /** @brief The x-coordinate of the left-top corner. */ - float left; - /** @brief The y-coordinate of the left-top corner. */ - float top; - /** @brief The x-coordinate of the right-bottom corner. */ - float right; - /** @brief The y-coordinate of the right-bottom corner. */ - float bottom; - /**@}*/ + /**@{*/ + /** @brief The x-coordinate of the left-top corner. */ + float left; + /** @brief The y-coordinate of the left-top corner. */ + float top; + /** @brief The x-coordinate of the right-bottom corner. */ + float right; + /** @brief The y-coordinate of the right-bottom corner. */ + float bottom; + /**@}*/ }* FS_LPRECTF, FS_RECTF; /** @brief Const Pointer to ::FS_RECTF structure.*/ -typedef const FS_RECTF* FS_LPCRECTF; +typedef const FS_RECTF* FS_LPCRECTF; #endif #if defined(_WIN32) && defined(FPDFSDK_EXPORTS) @@ -126,525 +123,524 @@ extern "C" { #endif // Function: FPDF_InitLibrary -// Initialize the FPDFSDK library +// Initialize the FPDFSDK library // Parameters: -// None +// None // Return value: -// None. +// None. // Comments: -// You have to call this function before you can call any PDF processing functions. +// You have to call this function before you can call any PDF processing functions. DLLEXPORT void STDCALL FPDF_InitLibrary(); // Function: FPDF_DestroyLibary -// Release all resources allocated by the FPDFSDK library. +// Release all resources allocated by the FPDFSDK library. // Parameters: -// None. +// None. // Return value: -// None. +// None. // Comments: -// You can call this function to release all memory blocks allocated by the library. -// After this function called, you should not call any PDF processing functions. +// You can call this function to release all memory blocks allocated by the library. +// After this function called, you should not call any PDF processing functions. DLLEXPORT void STDCALL FPDF_DestroyLibrary(); //Policy for accessing the local machine time. -#define FPDF_POLICY_MACHINETIME_ACCESS 0 +#define FPDF_POLICY_MACHINETIME_ACCESS 0 // Function: FPDF_SetSandBoxPolicy -// Set the policy for the sandbox environment. -// Parameters: -// policy - The specified policy for setting, for example:FPDF_POLICY_MACHINETIME_ACCESS. -// enable - True for enable, False for disable the policy. +// Set the policy for the sandbox environment. +// Parameters: +// policy - The specified policy for setting, for example:FPDF_POLICY_MACHINETIME_ACCESS. +// enable - True for enable, False for disable the policy. // Return value: -// None. -DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable); +// None. +DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy, FPDF_BOOL enable); /** * Open and load a PDF document. -* @param[in] file_path - Path to the PDF file (including extension). -* @param[in] password - A string used as the password for PDF file. -* If no password needed, empty or NULL can be used. -* @note Loaded document can be closed by FPDF_CloseDocument. -* If this function fails, you can use FPDF_GetLastError() to retrieve -* the reason why it fails. -* @retval A handle to the loaded document. If failed, NULL is returned. +* @param[in] file_path - Path to the PDF file (including extension). +* @param[in] password - A string used as the password for PDF file. +* If no password needed, empty or NULL can be used. +* @note Loaded document can be closed by FPDF_CloseDocument. +* If this function fails, you can use FPDF_GetLastError() to retrieve +* the reason why it fails. +* @retval A handle to the loaded document. If failed, NULL is returned. */ -DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, - FPDF_BYTESTRING password); +DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path, + FPDF_BYTESTRING password); // Function: FPDF_LoadMemDocument -// Open and load a PDF document from memory. -// Parameters: -// data_buf - Pointer to a buffer containing the PDF document. -// size - Number of bytes in the PDF document. -// password - A string used as the password for PDF file. -// If no password needed, empty or NULL can be used. -// Return value: -// A handle to the loaded document. If failed, NULL is returned. +// Open and load a PDF document from memory. +// Parameters: +// data_buf - Pointer to a buffer containing the PDF document. +// size - Number of bytes in the PDF document. +// password - A string used as the password for PDF file. +// If no password needed, empty or NULL can be used. +// Return value: +// A handle to the loaded document. If failed, NULL is returned. // Comments: -// The memory buffer must remain valid when the document is open. -// Loaded document can be closed by FPDF_CloseDocument. -// If this function fails, you can use FPDF_GetLastError() to retrieve -// the reason why it fails. +// The memory buffer must remain valid when the document is open. +// Loaded document can be closed by FPDF_CloseDocument. +// If this function fails, you can use FPDF_GetLastError() to retrieve +// the reason why it fails. // -DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, - int size, FPDF_BYTESTRING password); +DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadMemDocument(const void* data_buf, + int size, FPDF_BYTESTRING password); // Structure for custom file access. typedef struct { - // File length, in bytes. - unsigned long m_FileLen; - - // A function pointer for getting a block of data from specific position. - // Position is specified by byte offset from beginning of the file. - // The position and size will never go out range of file length. - // It may be possible for FPDFSDK to call this function multiple times for same position. - // Return value: should be non-zero if successful, zero for error. - int (*m_GetBlock)(void* param, unsigned long position, unsigned char* pBuf, unsigned long size); - - // A custom pointer for all implementation specific data. - // This pointer will be used as the first parameter to m_GetBlock callback. - void* m_Param; + // File length, in bytes. + unsigned long m_FileLen; + + // A function pointer for getting a block of data from specific position. + // Position is specified by byte offset from beginning of the file. + // The position and size will never go out range of file length. + // It may be possible for FPDFSDK to call this function multiple times for same position. + // Return value: should be non-zero if successful, zero for error. + int (*m_GetBlock)(void* param, unsigned long position, unsigned char* pBuf, unsigned long size); + + // A custom pointer for all implementation specific data. + // This pointer will be used as the first parameter to m_GetBlock callback. + void* m_Param; } FPDF_FILEACCESS; // Function: FPDF_LoadCustomDocument -// Load PDF document from a custom access descriptor. +// Load PDF document from a custom access descriptor. // Parameters: -// pFileAccess - A structure for access the file. -// password - Optional password for decrypting the PDF file. +// pFileAccess - A structure for access the file. +// password - Optional password for decrypting the PDF file. // Return value: -// A handle to the loaded document. If failed, NULL is returned. +// A handle to the loaded document. If failed, NULL is returned. // Comments: -// The application should maintain the file resources being valid until the PDF document close. -// Loaded document can be closed by FPDF_CloseDocument. -DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, - FPDF_BYTESTRING password); +// The application should maintain the file resources being valid until the PDF document close. +// Loaded document can be closed by FPDF_CloseDocument. +DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadCustomDocument(FPDF_FILEACCESS* pFileAccess, + FPDF_BYTESTRING password); // Function: FPDF_GetFileVersion -// Get the file version of the specific PDF document. +// Get the file version of the specific PDF document. // Parameters: -// doc - Handle to document. -// fileVersion - The PDF file version. File version: 14 for 1.4, 15 for 1.5, ... +// doc - Handle to document. +// fileVersion - The PDF file version. File version: 14 for 1.4, 15 for 1.5, ... // Return value: -// TRUE if this call succeed, If failed, FALSE is returned. +// TRUE if this call succeed, If failed, FALSE is returned. // Comments: -// If the document is created by function ::FPDF_CreateNewDocument, then this function would always fail. +// If the document is created by function ::FPDF_CreateNewDocument, then this function would always fail. DLLEXPORT FPDF_BOOL STDCALL FPDF_GetFileVersion(FPDF_DOCUMENT doc, int* fileVersion); -#define FPDF_ERR_SUCCESS 0 // No error. -#define FPDF_ERR_UNKNOWN 1 // Unknown error. -#define FPDF_ERR_FILE 2 // File not found or could not be opened. -#define FPDF_ERR_FORMAT 3 // File not in PDF format or corrupted. -#define FPDF_ERR_PASSWORD 4 // Password required or incorrect password. -#define FPDF_ERR_SECURITY 5 // Unsupported security scheme. -#define FPDF_ERR_PAGE 6 // Page not found or content error. +#define FPDF_ERR_SUCCESS 0 // No error. +#define FPDF_ERR_UNKNOWN 1 // Unknown error. +#define FPDF_ERR_FILE 2 // File not found or could not be opened. +#define FPDF_ERR_FORMAT 3 // File not in PDF format or corrupted. +#define FPDF_ERR_PASSWORD 4 // Password required or incorrect password. +#define FPDF_ERR_SECURITY 5 // Unsupported security scheme. +#define FPDF_ERR_PAGE 6 // Page not found or content error. // Function: FPDF_GetLastError -// Get last error code when an SDK function failed. -// Parameters: -// None. +// Get last error code when an SDK function failed. +// Parameters: +// None. // Return value: -// A 32-bit integer indicating error codes (defined above). +// A 32-bit integer indicating error codes (defined above). // Comments: -// If the previous SDK call succeeded, the return value of this function -// is not defined. +// If the previous SDK call succeeded, the return value of this function +// is not defined. // -DLLEXPORT unsigned long STDCALL FPDF_GetLastError(); +DLLEXPORT unsigned long STDCALL FPDF_GetLastError(); // Function: FPDF_GetDocPermission -// Get file permission flags of the document. -// Parameters: -// document - Handle to document. Returned by FPDF_LoadDocument function. +// Get file permission flags of the document. +// Parameters: +// document - Handle to document. Returned by FPDF_LoadDocument function. // Return value: -// A 32-bit integer indicating permission flags. Please refer to PDF Reference for -// detailed description. If the document is not protected, 0xffffffff will be returned. +// A 32-bit integer indicating permission flags. Please refer to PDF Reference for +// detailed description. If the document is not protected, 0xffffffff will be returned. // -DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document); +DLLEXPORT unsigned long STDCALL FPDF_GetDocPermissions(FPDF_DOCUMENT document); // Function: FPDF_GetSecurityHandlerRevision -// Get the revision for security handler. +// Get the revision for security handler. // Parameters: -// document - Handle to document. Returned by FPDF_LoadDocument function. +// document - Handle to document. Returned by FPDF_LoadDocument function. // Return value: -// The security handler revision number. Please refer to PDF Reference for -// detailed description. If the document is not protected, -1 will be returned. +// The security handler revision number. Please refer to PDF Reference for +// detailed description. If the document is not protected, -1 will be returned. // DLLEXPORT int STDCALL FPDF_GetSecurityHandlerRevision(FPDF_DOCUMENT document); // Function: FPDF_GetPageCount -// Get total number of pages in a document. -// Parameters: -// document - Handle to document. Returned by FPDF_LoadDocument function. +// Get total number of pages in a document. +// Parameters: +// document - Handle to document. Returned by FPDF_LoadDocument function. // Return value: -// Total number of pages in the document. +// Total number of pages in the document. // DLLEXPORT int STDCALL FPDF_GetPageCount(FPDF_DOCUMENT document); // Function: FPDF_LoadPage -// Load a page inside a document. -// Parameters: -// document - Handle to document. Returned by FPDF_LoadDocument function. -// page_index - Index number of the page. 0 for the first page. +// Load a page inside a document. +// Parameters: +// document - Handle to document. Returned by FPDF_LoadDocument function. +// page_index - Index number of the page. 0 for the first page. // Return value: -// A handle to the loaded page. If failed, NULL is returned. +// A handle to the loaded page. If failed, NULL is returned. // Comments: -// Loaded page can be rendered to devices using FPDF_RenderPage function. -// Loaded page can be closed by FPDF_ClosePage. +// Loaded page can be rendered to devices using FPDF_RenderPage function. +// Loaded page can be closed by FPDF_ClosePage. // -DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index); +DLLEXPORT FPDF_PAGE STDCALL FPDF_LoadPage(FPDF_DOCUMENT document, int page_index); // Function: FPDF_GetPageWidth -// Get page width. +// Get page width. // Parameters: -// page - Handle to the page. Returned by FPDF_LoadPage function. +// page - Handle to the page. Returned by FPDF_LoadPage function. // Return value: -// Page width (excluding non-displayable area) measured in points. -// One point is 1/72 inch (around 0.3528 mm). +// Page width (excluding non-displayable area) measured in points. +// One point is 1/72 inch (around 0.3528 mm). // DLLEXPORT double STDCALL FPDF_GetPageWidth(FPDF_PAGE page); // Function: FPDF_GetPageHeight -// Get page height. +// Get page height. // Parameters: -// page - Handle to the page. Returned by FPDF_LoadPage function. +// page - Handle to the page. Returned by FPDF_LoadPage function. // Return value: -// Page height (excluding non-displayable area) measured in points. -// One point is 1/72 inch (around 0.3528 mm) +// Page height (excluding non-displayable area) measured in points. +// One point is 1/72 inch (around 0.3528 mm) // DLLEXPORT double STDCALL FPDF_GetPageHeight(FPDF_PAGE page); // Function: FPDF_GetPageSizeByIndex -// Get the size of a page by index. +// Get the size of a page by index. // Parameters: -// document - Handle to document. Returned by FPDF_LoadDocument function. -// page_index - Page index, zero for the first page. -// width - Pointer to a double value receiving the page width (in points). -// height - Pointer to a double value receiving the page height (in points). +// document - Handle to document. Returned by FPDF_LoadDocument function. +// page_index - Page index, zero for the first page. +// width - Pointer to a double value receiving the page width (in points). +// height - Pointer to a double value receiving the page height (in points). // Return value: -// Non-zero for success. 0 for error (document or page not found). +// Non-zero for success. 0 for error (document or page not found). // DLLEXPORT int STDCALL FPDF_GetPageSizeByIndex(FPDF_DOCUMENT document, int page_index, double* width, double* height); // Page rendering flags. They can be combined with bit OR. -#define FPDF_ANNOT 0x01 // Set if annotations are to be rendered. -#define FPDF_LCD_TEXT 0x02 // Set if using text rendering optimized for LCD display. -#define FPDF_NO_NATIVETEXT 0x04 // Don't use the native text output available on some platforms -#define FPDF_GRAYSCALE 0x08 // Grayscale output. -#define FPDF_DEBUG_INFO 0x80 // Set if you want to get some debug info. - // Please discuss with Foxit first if you need to collect debug info. -#define FPDF_NO_CATCH 0x100 // Set if you don't want to catch exception. -#define FPDF_RENDER_LIMITEDIMAGECACHE 0x200 // Limit image cache size. -#define FPDF_RENDER_FORCEHALFTONE 0x400 // Always use halftone for image stretching. -#define FPDF_PRINTING 0x800 // Render for printing. -#define FPDF_RENDER_NO_SMOOTHTEXT 0x1000 // Set to disable anti-aliasing on text. -#define FPDF_RENDER_NO_SMOOTHIMAGE 0x2000 // Set to disable anti-aliasing on images. -#define FPDF_RENDER_NO_SMOOTHPATH 0x4000 // Set to disable anti-aliasing on paths. -#define FPDF_REVERSE_BYTE_ORDER 0x10 //set whether render in a reverse Byte order, this flag only - //enable when render to a bitmap. +#define FPDF_ANNOT 0x01 // Set if annotations are to be rendered. +#define FPDF_LCD_TEXT 0x02 // Set if using text rendering optimized for LCD display. +#define FPDF_NO_NATIVETEXT 0x04 // Don't use the native text output available on some platforms +#define FPDF_GRAYSCALE 0x08 // Grayscale output. +#define FPDF_DEBUG_INFO 0x80 // Set if you want to get some debug info. + // Please discuss with Foxit first if you need to collect debug info. +#define FPDF_NO_CATCH 0x100 // Set if you don't want to catch exception. +#define FPDF_RENDER_LIMITEDIMAGECACHE 0x200 // Limit image cache size. +#define FPDF_RENDER_FORCEHALFTONE 0x400 // Always use halftone for image stretching. +#define FPDF_PRINTING 0x800 // Render for printing. +#define FPDF_RENDER_NO_SMOOTHTEXT 0x1000 // Set to disable anti-aliasing on text. +#define FPDF_RENDER_NO_SMOOTHIMAGE 0x2000 // Set to disable anti-aliasing on images. +#define FPDF_RENDER_NO_SMOOTHPATH 0x4000 // Set to disable anti-aliasing on paths. +#define FPDF_REVERSE_BYTE_ORDER 0x10 //set whether render in a reverse Byte order, this flag only + //enable when render to a bitmap. #ifdef _WIN32 // Function: FPDF_RenderPage -// Render contents in a page to a device (screen, bitmap, or printer). -// This function is only supported on Windows system. -// Parameters: -// dc - Handle to device context. -// page - Handle to the page. Returned by FPDF_LoadPage function. -// start_x - Left pixel position of the display area in the device coordinate. -// start_y - Top pixel position of the display area in the device coordinate. -// size_x - Horizontal size (in pixels) for displaying the page. -// size_y - Vertical size (in pixels) for displaying the page. -// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), -// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). -// flags - 0 for normal display, or combination of flags defined above. -// Return value: -// None. +// Render contents in a page to a device (screen, bitmap, or printer). +// This function is only supported on Windows system. +// Parameters: +// dc - Handle to device context. +// page - Handle to the page. Returned by FPDF_LoadPage function. +// start_x - Left pixel position of the display area in the device coordinate. +// start_y - Top pixel position of the display area in the device coordinate. +// size_x - Horizontal size (in pixels) for displaying the page. +// size_y - Vertical size (in pixels) for displaying the page. +// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), +// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). +// flags - 0 for normal display, or combination of flags defined above. +// Return value: +// None. // DLLEXPORT void STDCALL FPDF_RenderPage(HDC dc, FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, - int rotate, int flags); + int rotate, int flags); #endif // Function: FPDF_RenderPageBitmap -// Render contents in a page to a device independent bitmap -// Parameters: -// bitmap - Handle to the device independent bitmap (as the output buffer). -// Bitmap handle can be created by FPDFBitmap_Create function. -// page - Handle to the page. Returned by FPDF_LoadPage function. -// start_x - Left pixel position of the display area in the bitmap coordinate. -// start_y - Top pixel position of the display area in the bitmap coordinate. -// size_x - Horizontal size (in pixels) for displaying the page. -// size_y - Vertical size (in pixels) for displaying the page. -// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), -// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). -// flags - 0 for normal display, or combination of flags defined above. -// Return value: -// None. +// Render contents in a page to a device independent bitmap +// Parameters: +// bitmap - Handle to the device independent bitmap (as the output buffer). +// Bitmap handle can be created by FPDFBitmap_Create function. +// page - Handle to the page. Returned by FPDF_LoadPage function. +// start_x - Left pixel position of the display area in the bitmap coordinate. +// start_y - Top pixel position of the display area in the bitmap coordinate. +// size_x - Horizontal size (in pixels) for displaying the page. +// size_y - Vertical size (in pixels) for displaying the page. +// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), +// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). +// flags - 0 for normal display, or combination of flags defined above. +// Return value: +// None. // -DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, - int size_x, int size_y, int rotate, int flags); +DLLEXPORT void STDCALL FPDF_RenderPageBitmap(FPDF_BITMAP bitmap, FPDF_PAGE page, int start_x, int start_y, + int size_x, int size_y, int rotate, int flags); // Function: FPDF_ClosePage -// Close a loaded PDF page. -// Parameters: -// page - Handle to the loaded page. +// Close a loaded PDF page. +// Parameters: +// page - Handle to the loaded page. // Return value: -// None. +// None. // DLLEXPORT void STDCALL FPDF_ClosePage(FPDF_PAGE page); // Function: FPDF_CloseDocument -// Close a loaded PDF document. -// Parameters: -// document - Handle to the loaded document. +// Close a loaded PDF document. +// Parameters: +// document - Handle to the loaded document. // Return value: -// None. +// None. // DLLEXPORT void STDCALL FPDF_CloseDocument(FPDF_DOCUMENT document); // Function: FPDF_DeviceToPage -// Convert the screen coordinate of a point to page coordinate. -// Parameters: -// page - Handle to the page. Returned by FPDF_LoadPage function. -// start_x - Left pixel position of the display area in the device coordinate. -// start_y - Top pixel position of the display area in the device coordinate. -// size_x - Horizontal size (in pixels) for displaying the page. -// size_y - Vertical size (in pixels) for displaying the page. -// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), -// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). -// device_x - X value in device coordinate, for the point to be converted. -// device_y - Y value in device coordinate, for the point to be converted. -// page_x - A Pointer to a double receiving the converted X value in page coordinate. -// page_y - A Pointer to a double receiving the converted Y value in page coordinate. -// Return value: -// None. +// Convert the screen coordinate of a point to page coordinate. +// Parameters: +// page - Handle to the page. Returned by FPDF_LoadPage function. +// start_x - Left pixel position of the display area in the device coordinate. +// start_y - Top pixel position of the display area in the device coordinate. +// size_x - Horizontal size (in pixels) for displaying the page. +// size_y - Vertical size (in pixels) for displaying the page. +// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), +// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). +// device_x - X value in device coordinate, for the point to be converted. +// device_y - Y value in device coordinate, for the point to be converted. +// page_x - A Pointer to a double receiving the converted X value in page coordinate. +// page_y - A Pointer to a double receiving the converted Y value in page coordinate. +// Return value: +// None. // Comments: -// The page coordinate system has its origin at left-bottom corner of the page, with X axis goes along -// the bottom side to the right, and Y axis goes along the left side upward. NOTE: this coordinate system -// can be altered when you zoom, scroll, or rotate a page, however, a point on the page should always have -// the same coordinate values in the page coordinate system. +// The page coordinate system has its origin at left-bottom corner of the page, with X axis goes along +// the bottom side to the right, and Y axis goes along the left side upward. NOTE: this coordinate system +// can be altered when you zoom, scroll, or rotate a page, however, a point on the page should always have +// the same coordinate values in the page coordinate system. // -// The device coordinate system is device dependent. For screen device, its origin is at left-top -// corner of the window. However this origin can be altered by Windows coordinate transformation -// utilities. You must make sure the start_x, start_y, size_x, size_y and rotate parameters have exactly -// same values as you used in FPDF_RenderPage() function call. +// The device coordinate system is device dependent. For screen device, its origin is at left-top +// corner of the window. However this origin can be altered by Windows coordinate transformation +// utilities. You must make sure the start_x, start_y, size_x, size_y and rotate parameters have exactly +// same values as you used in FPDF_RenderPage() function call. // DLLEXPORT void STDCALL FPDF_DeviceToPage(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, - int rotate, int device_x, int device_y, double* page_x, double* page_y); + int rotate, int device_x, int device_y, double* page_x, double* page_y); // Function: FPDF_PageToDevice -// Convert the page coordinate of a point to screen coordinate. -// Parameters: -// page - Handle to the page. Returned by FPDF_LoadPage function. -// start_x - Left pixel position of the display area in the device coordinate. -// start_y - Top pixel position of the display area in the device coordinate. -// size_x - Horizontal size (in pixels) for displaying the page. -// size_y - Vertical size (in pixels) for displaying the page. -// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), -// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). -// page_x - X value in page coordinate, for the point to be converted. -// page_y - Y value in page coordinate, for the point to be converted. -// device_x - A pointer to an integer receiving the result X value in device coordinate. -// device_y - A pointer to an integer receiving the result Y value in device coordinate. -// Return value: -// None. +// Convert the page coordinate of a point to screen coordinate. +// Parameters: +// page - Handle to the page. Returned by FPDF_LoadPage function. +// start_x - Left pixel position of the display area in the device coordinate. +// start_y - Top pixel position of the display area in the device coordinate. +// size_x - Horizontal size (in pixels) for displaying the page. +// size_y - Vertical size (in pixels) for displaying the page. +// rotate - Page orientation: 0 (normal), 1 (rotated 90 degrees clockwise), +// 2 (rotated 180 degrees), 3 (rotated 90 degrees counter-clockwise). +// page_x - X value in page coordinate, for the point to be converted. +// page_y - Y value in page coordinate, for the point to be converted. +// device_x - A pointer to an integer receiving the result X value in device coordinate. +// device_y - A pointer to an integer receiving the result Y value in device coordinate. +// Return value: +// None. // Comments: -// See comments of FPDF_DeviceToPage() function. +// See comments of FPDF_DeviceToPage() function. // DLLEXPORT void STDCALL FPDF_PageToDevice(FPDF_PAGE page, int start_x, int start_y, int size_x, int size_y, - int rotate, double page_x, double page_y, int* device_x, int* device_y); + int rotate, double page_x, double page_y, int* device_x, int* device_y); // Function: FPDFBitmap_Create -// Create a Foxit Device Independent Bitmap (FXDIB). +// Create a Foxit Device Independent Bitmap (FXDIB). // Parameters: -// width - Number of pixels in a horizontal line of the bitmap. Must be greater than 0. -// height - Number of pixels in a vertical line of the bitmap. Must be greater than 0. -// alpha - A flag indicating whether alpha channel is used. Non-zero for using alpha, zero for not using. +// width - Number of pixels in a horizontal line of the bitmap. Must be greater than 0. +// height - Number of pixels in a vertical line of the bitmap. Must be greater than 0. +// alpha - A flag indicating whether alpha channel is used. Non-zero for using alpha, zero for not using. // Return value: -// The created bitmap handle, or NULL if parameter error or out of memory. +// The created bitmap handle, or NULL if parameter error or out of memory. // Comments: -// An FXDIB always use 4 byte per pixel. The first byte of a pixel is always double word aligned. -// Each pixel contains red (R), green (G), blue (B) and optionally alpha (A) values. -// The byte order is BGRx (the last byte unused if no alpha channel) or BGRA. -// -// The pixels in a horizontal line (also called scan line) are stored side by side, with left most -// pixel stored first (with lower memory address). Each scan line uses width*4 bytes. +// An FXDIB always use 4 byte per pixel. The first byte of a pixel is always double word aligned. +// Each pixel contains red (R), green (G), blue (B) and optionally alpha (A) values. +// The byte order is BGRx (the last byte unused if no alpha channel) or BGRA. +// +// The pixels in a horizontal line (also called scan line) are stored side by side, with left most +// pixel stored first (with lower memory address). Each scan line uses width*4 bytes. // -// Scan lines are stored one after another, with top most scan line stored first. There is no gap -// between adjacent scan lines. +// Scan lines are stored one after another, with top most scan line stored first. There is no gap +// between adjacent scan lines. // -// This function allocates enough memory for holding all pixels in the bitmap, but it doesn't -// initialize the buffer. Applications can use FPDFBitmap_FillRect to fill the bitmap using any color. +// This function allocates enough memory for holding all pixels in the bitmap, but it doesn't +// initialize the buffer. Applications can use FPDFBitmap_FillRect to fill the bitmap using any color. DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_Create(int width, int height, int alpha); // More DIB formats -#define FPDFBitmap_Gray 1 // Gray scale bitmap, one byte per pixel. -#define FPDFBitmap_BGR 2 // 3 bytes per pixel, byte order: blue, green, red. -#define FPDFBitmap_BGRx 3 // 4 bytes per pixel, byte order: blue, green, red, unused. -#define FPDFBitmap_BGRA 4 // 4 bytes per pixel, byte order: blue, green, red, alpha. +#define FPDFBitmap_Gray 1 // Gray scale bitmap, one byte per pixel. +#define FPDFBitmap_BGR 2 // 3 bytes per pixel, byte order: blue, green, red. +#define FPDFBitmap_BGRx 3 // 4 bytes per pixel, byte order: blue, green, red, unused. +#define FPDFBitmap_BGRA 4 // 4 bytes per pixel, byte order: blue, green, red, alpha. // Function: FPDFBitmap_CreateEx -// Create a Foxit Device Independent Bitmap (FXDIB) +// Create a Foxit Device Independent Bitmap (FXDIB) // Parameters: -// width - Number of pixels in a horizontal line of the bitmap. Must be greater than 0. -// height - Number of pixels in a vertical line of the bitmap. Must be greater than 0. -// format - A number indicating for bitmap format, as defined above. -// first_scan - A pointer to the first byte of first scan line, for external buffer -// only. If this parameter is NULL, then the SDK will create its own buffer. -// stride - Number of bytes for each scan line, for external buffer only.. -// Return value: -// The created bitmap handle, or NULL if parameter error or out of memory. +// width - Number of pixels in a horizontal line of the bitmap. Must be greater than 0. +// height - Number of pixels in a vertical line of the bitmap. Must be greater than 0. +// format - A number indicating for bitmap format, as defined above. +// first_scan - A pointer to the first byte of first scan line, for external buffer +// only. If this parameter is NULL, then the SDK will create its own buffer. +// stride - Number of bytes for each scan line, for external buffer only.. +// Return value: +// The created bitmap handle, or NULL if parameter error or out of memory. // Comments: -// Similar to FPDFBitmap_Create function, with more formats and external buffer supported. -// Bitmap created by this function can be used in any place that a FPDF_BITMAP handle is -// required. +// Similar to FPDFBitmap_Create function, with more formats and external buffer supported. +// Bitmap created by this function can be used in any place that a FPDF_BITMAP handle is +// required. // -// If external scanline buffer is used, then the application should destroy the buffer -// by itself. FPDFBitmap_Destroy function will not destroy the buffer. +// If external scanline buffer is used, then the application should destroy the buffer +// by itself. FPDFBitmap_Destroy function will not destroy the buffer. // DLLEXPORT FPDF_BITMAP STDCALL FPDFBitmap_CreateEx(int width, int height, int format, void* first_scan, int stride); // Function: FPDFBitmap_FillRect -// Fill a rectangle area in an FXDIB. +// Fill a rectangle area in an FXDIB. // Parameters: -// bitmap - The handle to the bitmap. Returned by FPDFBitmap_Create function. -// left - The left side position. Starting from 0 at the left-most pixel. -// top - The top side position. Starting from 0 at the top-most scan line. -// width - Number of pixels to be filled in each scan line. -// height - Number of scan lines to be filled. -// color - A 32-bit value specifing the color, in 8888 ARGB format. -// Return value: -// None. +// bitmap - The handle to the bitmap. Returned by FPDFBitmap_Create function. +// left - The left side position. Starting from 0 at the left-most pixel. +// top - The top side position. Starting from 0 at the top-most scan line. +// width - Number of pixels to be filled in each scan line. +// height - Number of scan lines to be filled. +// color - A 32-bit value specifing the color, in 8888 ARGB format. +// Return value: +// None. // Comments: -// This function set the color and (optionally) alpha value in specified region of the bitmap. -// NOTE: If alpha channel is used, this function does NOT composite the background with the source color, -// instead the background will be replaced by the source color and alpha. -// If alpha channel is not used, the "alpha" parameter is ignored. +// This function set the color and (optionally) alpha value in specified region of the bitmap. +// NOTE: If alpha channel is used, this function does NOT composite the background with the source color, +// instead the background will be replaced by the source color and alpha. +// If alpha channel is not used, the "alpha" parameter is ignored. // DLLEXPORT void STDCALL FPDFBitmap_FillRect(FPDF_BITMAP bitmap, int left, int top, int width, int height, FPDF_DWORD color); // Function: FPDFBitmap_GetBuffer -// Get data buffer of an FXDIB +// Get data buffer of an FXDIB // Parameters: -// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. +// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. // Return value: -// The pointer to the first byte of the bitmap buffer. +// The pointer to the first byte of the bitmap buffer. // Comments: -// The stride may be more than width * number of bytes per pixel -// Applications can use this function to get the bitmap buffer pointer, then manipulate any color -// and/or alpha values for any pixels in the bitmap. +// The stride may be more than width * number of bytes per pixel +// Applications can use this function to get the bitmap buffer pointer, then manipulate any color +// and/or alpha values for any pixels in the bitmap. DLLEXPORT void* STDCALL FPDFBitmap_GetBuffer(FPDF_BITMAP bitmap); // Function: FPDFBitmap_GetWidth -// Get width of an FXDIB. +// Get width of an FXDIB. // Parameters: -// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. +// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. // Return value: -// The number of pixels in a horizontal line of the bitmap. +// The number of pixels in a horizontal line of the bitmap. DLLEXPORT int STDCALL FPDFBitmap_GetWidth(FPDF_BITMAP bitmap); // Function: FPDFBitmap_GetHeight -// Get height of an FXDIB. +// Get height of an FXDIB. // Parameters: -// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. +// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. // Return value: -// The number of pixels in a vertical line of the bitmap. +// The number of pixels in a vertical line of the bitmap. DLLEXPORT int STDCALL FPDFBitmap_GetHeight(FPDF_BITMAP bitmap); // Function: FPDFBitmap_GetStride -// Get number of bytes for each scan line in the bitmap buffer. +// Get number of bytes for each scan line in the bitmap buffer. // Parameters: -// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. +// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. // Return value: -// The number of bytes for each scan line in the bitmap buffer. +// The number of bytes for each scan line in the bitmap buffer. // Comments: -// The stride may be more than width * number of bytes per pixel +// The stride may be more than width * number of bytes per pixel DLLEXPORT int STDCALL FPDFBitmap_GetStride(FPDF_BITMAP bitmap); // Function: FPDFBitmap_Destroy -// Destroy an FXDIB and release all related buffers. +// Destroy an FXDIB and release all related buffers. // Parameters: -// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. +// bitmap - Handle to the bitmap. Returned by FPDFBitmap_Create function. // Return value: -// None. +// None. // Comments: -// This function will not destroy any external buffer. +// This function will not destroy any external buffer. // DLLEXPORT void STDCALL FPDFBitmap_Destroy(FPDF_BITMAP bitmap); // Function: FPDF_VIEWERREF_GetPrintScaling -// Whether the PDF document prefers to be scaled or not. -// Parameters: -// document - Handle to the loaded document. +// Whether the PDF document prefers to be scaled or not. +// Parameters: +// document - Handle to the loaded document. // Return value: -// None. +// None. // DLLEXPORT FPDF_BOOL STDCALL FPDF_VIEWERREF_GetPrintScaling(FPDF_DOCUMENT document); // Function: FPDF_VIEWERREF_GetNumCopies -// Returns the number of copies to be printed. +// Returns the number of copies to be printed. // Parameters: -// document - Handle to the loaded document. +// document - Handle to the loaded document. // Return value: // The number of copies to be printed. // DLLEXPORT int STDCALL FPDF_VIEWERREF_GetNumCopies(FPDF_DOCUMENT document); // Function: FPDF_VIEWERREF_GetPrintPageRange -// Page numbers to initialize print dialog box when file is printed. +// Page numbers to initialize print dialog box when file is printed. // Parameters: -// document - Handle to the loaded document. +// document - Handle to the loaded document. // Return value: // The print page range to be used for printing. // DLLEXPORT FPDF_PAGERANGE STDCALL FPDF_VIEWERREF_GetPrintPageRange(FPDF_DOCUMENT document); // Function: FPDF_VIEWERREF_GetDuplex -// Returns the paper handling option to be used when printing from print dialog. +// Returns the paper handling option to be used when printing from print dialog. // Parameters: -// document - Handle to the loaded document. +// document - Handle to the loaded document. // Return value: // The paper handling option to be used when printing. // DLLEXPORT FPDF_DUPLEXTYPE STDCALL FPDF_VIEWERREF_GetDuplex(FPDF_DOCUMENT document); // Function: FPDF_CountNamedDests -// Get the count of named destinations in the PDF document. +// Get the count of named destinations in the PDF document. // Parameters: -// document - Handle to a document +// document - Handle to a document // Return value: -// The count of named destinations. +// The count of named destinations. DLLEXPORT FPDF_DWORD STDCALL FPDF_CountNamedDests(FPDF_DOCUMENT document); // Function: FPDF_GetNamedDestByName -// get a special dest handle by the index. -// Parameters: -// document - Handle to the loaded document. -// name - The name of a special named dest. +// get a special dest handle by the index. +// Parameters: +// document - Handle to the loaded document. +// name - The name of a special named dest. // Return value: -// The handle of the dest. +// The handle of the dest. // DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDestByName(FPDF_DOCUMENT document, FPDF_BYTESTRING name); // Function: FPDF_GetNamedDest -// Get the specified named destinations of the PDF document by index. +// Get the specified named destinations of the PDF document by index. // Parameters: -// document - Handle to a document -// index - The index of named destination. -// buffer - The buffer to obtain destination name, used as wchar_t*. -// buflen [in/out] - Size of the buffer in bytes on input, length of the result in bytes on output or -1 if the buffer is too small. +// document - Handle to a document +// index - The index of named destination. +// buffer - The buffer to obtain destination name, used as wchar_t*. +// buflen [in/out] - Size of the buffer in bytes on input, length of the result in bytes on output or -1 if the buffer is too small. // Return value: -// The destination handle of a named destination, or NULL if no named destination corresponding to |index|. +// The destination handle of a named destination, or NULL if no named destination corresponding to |index|. // Comments: -// Call this function twice to get the name of the named destination: -// 1) First time pass in |buffer| as NULL and get buflen. -// 2) Second time pass in allocated |buffer| and buflen to retrieve |buffer|, which should be used as wchar_t*. -// If buflen is not sufficiently large, it will be set to -1 upon return. +// Call this function twice to get the name of the named destination: +// 1) First time pass in |buffer| as NULL and get buflen. +// 2) Second time pass in allocated |buffer| and buflen to retrieve |buffer|, which should be used as wchar_t*. +// If buflen is not sufficiently large, it will be set to -1 upon return. // DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, int index, void* buffer, long* buflen); - #ifdef __cplusplus -}; +} #endif -#endif // _FPDFVIEW_H_ +#endif // PUBLIC_FPDFVIEW_H_ |