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// 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
#ifndef PUBLIC_FPDF_FORMFILL_H_
#define PUBLIC_FPDF_FORMFILL_H_
// NOLINTNEXTLINE(build/include)
#include "fpdfview.h"
typedef void* FPDF_FORMHANDLE;
// These values are return values for a public API, so should not be changed
// other than the count when adding new values.
#define FORMTYPE_NONE 0 // Document contains no forms
#define FORMTYPE_ACRO_FORM 1 // Forms are specified using AcroForm spec
#define FORMTYPE_XFA_FULL 2 // Forms are specified using the entire XFA
// spec
#define FORMTYPE_XFA_FOREGROUND 3 // Forms are specified using the XFAF subset
// of XFA spec
#define FORMTYPE_COUNT 4 // The number of form types
// Exported Functions
#ifdef __cplusplus
extern "C" {
#endif
typedef struct _IPDF_JsPlatform {
/**
* Version number of the interface. Currently must be 2.
**/
int version;
/* Version 1. */
/**
* Method: app_alert
* pop up a dialog to show warning or hint.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* Msg - A string containing the message to be displayed.
* Title - The title of the dialog.
* Type - The stype of button group.
* 0-OK(default);
* 1-OK,Cancel;
* 2-Yes,NO;
* 3-Yes, NO, Cancel.
* nIcon - The Icon type.
* 0-Error(default);
* 1-Warning;
* 2-Question;
* 3-Status.
* 4-Asterisk
* Return Value:
* The return value could be the folowing type:
* 1-OK;
* 2-Cancel;
* 3-NO;
* 4-Yes;
*/
int (*app_alert)(struct _IPDF_JsPlatform* pThis,
FPDF_WIDESTRING Msg,
FPDF_WIDESTRING Title,
int Type,
int Icon);
/**
* Method: app_beep
* Causes the system to play a sound.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* nType - The sound type.
* 0 - Error
* 1 - Warning
* 2 - Question
* 3 - Status
* 4 - Default (default value)
* Return Value:
* None
*/
void (*app_beep)(struct _IPDF_JsPlatform* pThis, int nType);
/**
* Method: app_response
* Displays a dialog box containing a question and an entry field for
* the user to reply to the question.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* Question - The question to be posed to the user.
* Title - The title of the dialog box.
* Default - A default value for the answer to the question. If
* not specified, no default value is presented.
* cLabel - A short string to appear in front of and on the
* same line as the edit text field.
* bPassword - If true, indicates that the user's response should
* show as asterisks (*) or bullets (?) to mask the response, which might be
* sensitive information. The default is false.
* response - A string buffer allocated by SDK, to receive the
* user's response.
* length - The length of the buffer, number of bytes.
* Currently, It's always be 2048.
* Return Value:
* Number of bytes the complete user input would actually require, not
* including trailing zeros, regardless of the value of the length
* parameter or the presence of the response buffer.
* Comments:
* No matter on what platform, the response buffer should be always
* written using UTF-16LE encoding. If a response buffer is
* present and the size of the user input exceeds the capacity of the
* buffer as specified by the length parameter, only the
* first "length" bytes of the user input are to be written to the
* buffer.
*/
int (*app_response)(struct _IPDF_JsPlatform* pThis,
FPDF_WIDESTRING Question,
FPDF_WIDESTRING Title,
FPDF_WIDESTRING Default,
FPDF_WIDESTRING cLabel,
FPDF_BOOL bPassword,
void* response,
int length);
/*
* Method: Doc_getFilePath
* Get the file path of the current document.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* filePath - The string buffer to receive the file path. Can be
* NULL.
* length - The length of the buffer, number of bytes. Can be
* 0.
* Return Value:
* Number of bytes the filePath consumes, including trailing zeros.
* Comments:
* The filePath should be always input in local encoding.
*
* The return value always indicated number of bytes required for the
* buffer , even when there is no buffer specified, or the buffer size is
* less than required. In this case, the buffer will not be modified.
*/
int (*Doc_getFilePath)(struct _IPDF_JsPlatform* pThis,
void* filePath,
int length);
/*
* Method: Doc_mail
* Mails the data buffer as an attachment to all recipients, with or
* without user interaction.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* mailData - Pointer to the data buffer to be sent.Can be NULL.
* length - The size,in bytes, of the buffer pointed by
* mailData parameter.Can be 0.
* bUI - If true, the rest of the parameters are used in a
* compose-new-message window that is displayed to the user. If false, the cTo
* parameter is required and all others are optional.
* To - A semicolon-delimited list of recipients for the
* message.
* Subject - The subject of the message. The length limit is 64
* KB.
* CC - A semicolon-delimited list of CC recipients for
* the message.
* BCC - A semicolon-delimited list of BCC recipients for
* the message.
* Msg - The content of the message. The length limit is 64
* KB.
* Return Value:
* None.
* Comments:
* If the parameter mailData is NULL or length is 0, the current
* document will be mailed as an attachment to all recipients.
*/
void (*Doc_mail)(struct _IPDF_JsPlatform* pThis,
void* mailData,
int length,
FPDF_BOOL bUI,
FPDF_WIDESTRING To,
FPDF_WIDESTRING Subject,
FPDF_WIDESTRING CC,
FPDF_WIDESTRING BCC,
FPDF_WIDESTRING Msg);
/*
* Method: Doc_print
* Prints all or a specific number of pages of the document.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* bUI - If true, will cause a UI to be presented to the
* user to obtain printing information and confirm the action.
* nStart - A 0-based index that defines the start of an
* inclusive range of pages.
* nEnd - A 0-based index that defines the end of an
* inclusive page range.
* bSilent - If true, suppresses the cancel dialog box while
* the document is printing. The default is false.
* bShrinkToFit - If true, the page is shrunk (if necessary) to
* fit within the imageable area of the printed page.
* bPrintAsImage - If true, print pages as an image.
* bReverse - If true, print from nEnd to nStart.
* bAnnotations - If true (the default), annotations are
* printed.
*/
void (*Doc_print)(struct _IPDF_JsPlatform* pThis,
FPDF_BOOL bUI,
int nStart,
int nEnd,
FPDF_BOOL bSilent,
FPDF_BOOL bShrinkToFit,
FPDF_BOOL bPrintAsImage,
FPDF_BOOL bReverse,
FPDF_BOOL bAnnotations);
/*
* Method: Doc_submitForm
* Send the form data to a specified URL.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* formData - Pointer to the data buffer to be sent.
* length - The size,in bytes, of the buffer pointed by
* formData parameter.
* URL - The URL to send to.
* Return Value:
* None.
*
*/
void (*Doc_submitForm)(struct _IPDF_JsPlatform* pThis,
void* formData,
int length,
FPDF_WIDESTRING URL);
/*
* Method: Doc_gotoPage
* Jump to a specified page.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself
* nPageNum - The specified page number, zero for the first
* page.
* Return Value:
* None.
*
*/
void (*Doc_gotoPage)(struct _IPDF_JsPlatform* pThis, int nPageNum);
/*
* Method: Field_browse
* Show a file selection dialog, and return the selected file path.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* filePath - Pointer to the data buffer to receive the file
* path.Can be NULL.
* length - The length of the buffer, number of bytes. Can be
* 0.
* Return Value:
* Number of bytes the filePath consumes, including trailing zeros.
* Comments:
* The filePath shoule be always input in local encoding.
*/
int (*Field_browse)(struct _IPDF_JsPlatform* pThis,
void* filePath,
int length);
/**
* pointer to FPDF_FORMFILLINFO interface.
**/
void* m_pFormfillinfo;
/* Version 2. */
void* m_isolate; /* Unused in v3, retain for compatibility. */
unsigned int m_v8EmbedderSlot; /* Unused in v3, retain for compatibility. */
/* Version 3. */
/* Version 3 moves m_Isolate and m_v8EmbedderSlot to FPDF_LIBRARY_CONFIG. */
} IPDF_JSPLATFORM;
// Flags for Cursor type
#define FXCT_ARROW 0
#define FXCT_NESW 1
#define FXCT_NWSE 2
#define FXCT_VBEAM 3
#define FXCT_HBEAM 4
#define FXCT_HAND 5
/**
* Function signature for the callback function passed to the FFI_SetTimer
* method.
* Parameters:
* idEvent - Identifier of the timer.
* Return value:
* None.
**/
typedef void (*TimerCallback)(int idEvent);
/**
* Declares of a struct type to the local system time.
**/
typedef struct _FPDF_SYSTEMTIME {
unsigned short wYear; /* years since 1900 */
unsigned short wMonth; /* months since January - [0,11] */
unsigned short wDayOfWeek; /* days since Sunday - [0,6] */
unsigned short wDay; /* day of the month - [1,31] */
unsigned short wHour; /* hours since midnight - [0,23] */
unsigned short wMinute; /* minutes after the hour - [0,59] */
unsigned short wSecond; /* seconds after the minute - [0,59] */
unsigned short wMilliseconds; /* milliseconds after the second - [0,999] */
} FPDF_SYSTEMTIME;
#ifdef PDF_ENABLE_XFA
// XFA
/**
* @name Pageview event flags
*/
/*@{*/
/** @brief After a new pageview is added. */
#define FXFA_PAGEVIEWEVENT_POSTADDED 1
/** @brief After a pageview is removed. */
#define FXFA_PAGEVIEWEVENT_POSTREMOVED 3
/*@}*/
// menu
/**
* @name Macro Definitions for Right Context Menu Features Of XFA Fields
*/
/*@{*/
#define FXFA_MENU_COPY 1
#define FXFA_MENU_CUT 2
#define FXFA_MENU_SELECTALL 4
#define FXFA_MENU_UNDO 8
#define FXFA_MENU_REDO 16
#define FXFA_MENU_PASTE 32
/*@}*/
// file type
/**
* @name Macro Definitions for File Type.
*/
/*@{*/
#define FXFA_SAVEAS_XML 1
#define FXFA_SAVEAS_XDP 2
/*@}*/
#endif // PDF_ENABLE_XFA
typedef struct _FPDF_FORMFILLINFO {
/**
* Version number of the interface. Currently must be 1 (when PDFium is built
* without the XFA module) or must be 2 (when built with the XFA module).
**/
int version;
/* Version 1. */
/**
*Method: Release
* Give implementation a chance to release any data after the
* interface is no longer used
*Interface Version:
* 1
*Implementation Required:
* No
*Comments:
* Called by Foxit SDK during the final cleanup process.
*Parameters:
* pThis - Pointer to the interface structure itself
*Return Value:
* None
*/
void (*Release)(struct _FPDF_FORMFILLINFO* pThis);
/**
* Method: FFI_Invalidate
* Invalidate the client area within the specified rectangle.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* left - Left position of the client area in PDF page
*coordinate.
* top - Top position of the client area in PDF page
*coordinate.
* right - Right position of the client area in PDF page
*coordinate.
* bottom - Bottom position of the client area in PDF page
*coordinate.
* Return Value:
* None.
*
*comments:
* All positions are measured in PDF "user space".
* Implementation should call FPDF_RenderPageBitmap() function for
*repainting a specified page area.
*/
void (*FFI_Invalidate)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_PAGE page,
double left,
double top,
double right,
double bottom);
/**
* Method: FFI_OutputSelectedRect
* When user is taking the mouse to select texts on a form field,
* this callback function will keep
* returning the selected areas to the implementation.
*
* Interface Version:
* 1
* Implementation Required:
* No
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* left - Left position of the client area in PDF page
* coordinate.
* top - Top position of the client area in PDF page
* coordinate.
* right - Right position of the client area in PDF page
* coordinate.
* bottom - Bottom position of the client area in PDF page
* coordinate.
* Return Value:
* None.
*
* comments:
* This CALLBACK function is useful for implementing special text
* selection effect. Implementation should
* first records the returned rectangles, then draw them one by one
* at the painting period, last,remove all
* the recorded rectangles when finish painting.
*/
void (*FFI_OutputSelectedRect)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_PAGE page,
double left,
double top,
double right,
double bottom);
/**
* Method: FFI_SetCursor
* Set the Cursor shape.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* nCursorType - Cursor type. see Flags for Cursor type for the
* details.
* Return value:
* None.
* */
void (*FFI_SetCursor)(struct _FPDF_FORMFILLINFO* pThis, int nCursorType);
/**
* Method: FFI_SetTimer
* This method installs a system timer. An interval value is specified,
* and every time that interval elapses, the system must call into the
* callback function with the timer ID as returned by this function.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* uElapse - Specifies the time-out value, in milliseconds.
* lpTimerFunc - A pointer to the callback function-TimerCallback.
* Return value:
* The timer identifier of the new timer if the function is successful.
* An application passes this value to the FFI_KillTimer method to kill
* the timer. Nonzero if it is successful; otherwise, it is zero.
* */
int (*FFI_SetTimer)(struct _FPDF_FORMFILLINFO* pThis,
int uElapse,
TimerCallback lpTimerFunc);
/**
* Method: FFI_KillTimer
* This method uninstalls a system timer identified by nIDEvent, as
* set by an earlier call to FFI_SetTimer.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* nTimerID - The timer ID returned by FFI_SetTimer function.
* Return value:
* None.
* */
void (*FFI_KillTimer)(struct _FPDF_FORMFILLINFO* pThis, int nTimerID);
/**
* Method: FFI_GetLocalTime
* This method receives the current local time on the system.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* Return value:
* None.
* */
FPDF_SYSTEMTIME (*FFI_GetLocalTime)(struct _FPDF_FORMFILLINFO* pThis);
/**
* Method: FFI_OnChange
* This method will be invoked to notify implementation when the
* value of any FormField on the document had been changed.
* Interface Version:
* 1
* Implementation Required:
* no
* Parameters:
* pThis - Pointer to the interface structure itself.
* Return value:
* None.
* */
void (*FFI_OnChange)(struct _FPDF_FORMFILLINFO* pThis);
/**
* Method: FFI_GetPage
* This method receives the page pointer associated with a specified
* page index.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* document - Handle to document. Returned by FPDF_LoadDocument
* function.
* nPageIndex - Index number of the page. 0 for the first page.
* Return value:
* Handle to the page. Returned by FPDF_LoadPage function.
* Comments:
* In some cases, the document-level JavaScript action may refer to a
* page which hadn't been loaded yet.
* To successfully run the javascript action, implementation need to load
* the page for SDK.
* */
FPDF_PAGE (*FFI_GetPage)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_DOCUMENT document,
int nPageIndex);
/**
* Method: FFI_GetCurrentPage
* This method receives the current page pointer.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* document - Handle to document. Returned by FPDF_LoadDocument
* function.
* Return value:
* Handle to the page. Returned by FPDF_LoadPage function.
* */
FPDF_PAGE (*FFI_GetCurrentPage)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_DOCUMENT document);
/**
* Method: FFI_GetRotation
* This method receives currently rotation of the page view.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to page. Returned by FPDF_LoadPage function.
* Return value:
* The page rotation. Should be 0(0 degree),1(90 degree),2(180
* degree),3(270 degree), in a clockwise direction.
*
* Note: Unused.
* */
int (*FFI_GetRotation)(struct _FPDF_FORMFILLINFO* pThis, FPDF_PAGE page);
/**
* Method: FFI_ExecuteNamedAction
* This method will execute an named action.
* Interface Version:
* 1
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* namedAction - A byte string which indicates the named action,
* terminated by 0.
* Return value:
* None.
* Comments:
* See the named actions description of <<PDF Reference, version 1.7>>
* for more details.
* */
void (*FFI_ExecuteNamedAction)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_BYTESTRING namedAction);
/**
* @brief This method will be called when a text field is getting or losing a
* focus.
*
* @param[in] pThis Pointer to the interface structure itself.
* @param[in] value The string value of the form field, in UTF-16LE
* format.
* @param[in] valueLen The length of the string value, number of characters
* (not bytes).
* @param[in] is_focus True if the form field is getting a focus, False for
* losing a focus.
*
* @return None.
*
* @note Currently,only support text field and combobox field.
* */
void (*FFI_SetTextFieldFocus)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_WIDESTRING value,
FPDF_DWORD valueLen,
FPDF_BOOL is_focus);
/**
* Method: FFI_DoURIAction
* This action resolves to a uniform resource identifier.
* Interface Version:
* 1
* Implementation Required:
* No
* Parameters:
* pThis - Pointer to the interface structure itself.
* bsURI - A byte string which indicates the uniform resource
* identifier, terminated by 0.
* Return value:
* None.
* Comments:
* See the URI actions description of <<PDF Reference, version 1.7>> for
* more details.
* */
void (*FFI_DoURIAction)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_BYTESTRING bsURI);
/**
* Method: FFI_DoGoToAction
* This action changes the view to a specified destination.
* Interface Version:
* 1
* Implementation Required:
* No
* Parameters:
* pThis - Pointer to the interface structure itself.
* nPageIndex - The index of the PDF page.
* zoomMode - The zoom mode for viewing page. See below.
* fPosArray - The float array which carries the position info.
* sizeofArray - The size of float array.
*
* PDFZoom values:
* - XYZ = 1
* - FITPAGE = 2
* - FITHORZ = 3
* - FITVERT = 4
* - FITRECT = 5
* - FITBBOX = 6
* - FITBHORZ = 7
* - FITBVERT = 8
*
* Return value:
* None.
* Comments:
* See the Destinations description of <<PDF Reference, version 1.7>> in
*8.2.1 for more details.
**/
void (*FFI_DoGoToAction)(struct _FPDF_FORMFILLINFO* pThis,
int nPageIndex,
int zoomMode,
float* fPosArray,
int sizeofArray);
/**
* pointer to IPDF_JSPLATFORM interface
**/
IPDF_JSPLATFORM* m_pJsPlatform;
#ifdef PDF_ENABLE_XFA
/* Version 2. */
/**
* Method: FFI_DisplayCaret
* This method will show the caret at specified position.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to page. Returned by FPDF_LoadPage
*function.
* left - Left position of the client area in PDF page
*coordinate.
* top - Top position of the client area in PDF page
*coordinate.
* right - Right position of the client area in PDF page
*coordinate.
* bottom - Bottom position of the client area in PDF page
*coordinate.
* Return value:
* None.
**/
void (*FFI_DisplayCaret)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_PAGE page,
FPDF_BOOL bVisible,
double left,
double top,
double right,
double bottom);
/**
* Method: FFI_GetCurrentPageIndex
* This method will get the current page index.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* document - Handle to document. Returned by FPDF_LoadDocument
*function.
* Return value:
* The index of current page.
**/
int (*FFI_GetCurrentPageIndex)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_DOCUMENT document);
/**
* Method: FFI_SetCurrentPage
* This method will set the current page.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* document - Handle to document. Returned by FPDF_LoadDocument
*function.
* iCurPage - The index of the PDF page.
* Return value:
* None.
**/
void (*FFI_SetCurrentPage)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_DOCUMENT document,
int iCurPage);
/**
* Method: FFI_GotoURL
* This method will link to the specified URL.
* Interface Version:
* 2
* Implementation Required:
* no
* Parameters:
* pThis - Pointer to the interface structure itself.
* document - Handle to document. Returned by FPDF_LoadDocument
*function.
* wsURL - The string value of the URL, in UTF-16LE format.
* Return value:
* None.
**/
void (*FFI_GotoURL)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_DOCUMENT document,
FPDF_WIDESTRING wsURL);
/**
* Method: FFI_GetPageViewRect
* This method will get the current page view rectangle.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to page. Returned by FPDF_LoadPage
*function.
* left - The pointer to receive left position of the page
*view area in PDF page coordinate.
* top - The pointer to receive top position of the page
*view area in PDF page coordinate.
* right - The pointer to receive right position of the
*client area in PDF page coordinate.
* bottom - The pointer to receive bottom position of the
*client area in PDF page coordinate.
* Return value:
* None.
**/
void (*FFI_GetPageViewRect)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_PAGE page,
double* left,
double* top,
double* right,
double* bottom);
/**
* Method: FFI_PageEvent
* This method fires when pages have been added to or deleted from the XFA
* document.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page_count - The number of pages to be added to or deleted from the
* document.
* event_type - See FXFA_PAGEVIEWEVENT_* above.
* Return value:
* None.
* Comments:
* The pages to be added or deleted always start from the last page
* of document. This means that if parameter page_count is 2 and
* event type is FXFA_PAGEVIEWEVENT_POSTADDED, 2 new pages have been
* appended to the tail of document; If page_count is 2 and
* event type is FXFA_PAGEVIEWEVENT_POSTREMOVED, the last 2 pages
* have been deleted.
**/
void (*FFI_PageEvent)(struct _FPDF_FORMFILLINFO* pThis,
int page_count,
FPDF_DWORD event_type);
/**
* Method: FFI_PopupMenu
* This method will track the right context menu for XFA fields.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* page - Handle to page. Returned by FPDF_LoadPage
*function.
* hWidget - Handle to XFA fields.
* menuFlag - The menu flags. Please refer to macro definition
*of FXFA_MENU_XXX and this can be one or a combination of these macros.
* x - X position of the client area in PDF page
*coordinate.
* y - Y position of the client area in PDF page
*coordinate.
* Return value:
* TRUE indicates success; otherwise false.
**/
FPDF_BOOL (*FFI_PopupMenu)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_PAGE page,
FPDF_WIDGET hWidget,
int menuFlag,
float x,
float y);
/**
* Method: FFI_OpenFile
* This method will open the specified file with the specified mode.
* Interface Version
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* fileFlag - The file flag.Please refer to macro definition of
*FXFA_SAVEAS_XXX and this can be one of these macros.
* wsURL - The string value of the file URL, in UTF-16LE
*format.
* mode - The mode for open file.
* Return value:
* The handle to FPDF_FILEHANDLER.
**/
FPDF_FILEHANDLER* (*FFI_OpenFile)(struct _FPDF_FORMFILLINFO* pThis,
int fileFlag,
FPDF_WIDESTRING wsURL,
const char* mode);
/**
* Method: FFI_EmailTo
* This method will email the specified file stream to the specified
*contacter.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* pFileHandler - Handle to the FPDF_FILEHANDLER.
* pTo - A semicolon-delimited list of recipients for the
*message,in UTF-16LE format.
* pSubject - The subject of the message,in UTF-16LE format.
* pCC - A semicolon-delimited list of CC recipients for
*the message,in UTF-16LE format.
* pBcc - A semicolon-delimited list of BCC recipients for
*the message,in UTF-16LE format.
* pMsg - Pointer to the data buffer to be sent.Can be
*NULL,in UTF-16LE format.
* Return value:
* None.
**/
void (*FFI_EmailTo)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_FILEHANDLER* fileHandler,
FPDF_WIDESTRING pTo,
FPDF_WIDESTRING pSubject,
FPDF_WIDESTRING pCC,
FPDF_WIDESTRING pBcc,
FPDF_WIDESTRING pMsg);
/**
* Method: FFI_UploadTo
* This method will get upload the specified file stream to the
*specified URL.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* pFileHandler - Handle to the FPDF_FILEHANDLER.
* fileFlag - The file flag.Please refer to macro definition of
*FXFA_SAVEAS_XXX and this can be one of these macros.
* uploadTo - Pointer to the URL path, in UTF-16LE format.
* Return value:
* None.
**/
void (*FFI_UploadTo)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_FILEHANDLER* fileHandler,
int fileFlag,
FPDF_WIDESTRING uploadTo);
/**
* Method: FFI_GetPlatform
* This method will get the current platform.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* platform - Pointer to the data buffer to receive the
*platform.Can be NULL,in UTF-16LE format.
* length - The length of the buffer, number of bytes. Can be
*0.
* Return value:
* The length of the buffer, number of bytes.
**/
int (*FFI_GetPlatform)(struct _FPDF_FORMFILLINFO* pThis,
void* platform,
int length);
/**
* Method: FFI_GetLanguage
* This method will get the current language.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* language - Pointer to the data buffer to receive the current
*language.Can be NULL.
* length - The length of the buffer, number of bytes. Can be
*0.
* Return value:
* The length of the buffer, number of bytes.
**/
int (*FFI_GetLanguage)(struct _FPDF_FORMFILLINFO* pThis,
void* language,
int length);
/**
* Method: FFI_DownloadFromURL
* This method will download the specified file from the URL.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* URL - The string value of the file URL, in UTF-16LE
*format.
* Return value:
* The handle to FPDF_FILEHANDLER.
**/
FPDF_LPFILEHANDLER (*FFI_DownloadFromURL)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_WIDESTRING URL);
/**
* Method: FFI_PostRequestURL
* This method will post the request to the server URL.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* wsURL - The string value of the server URL, in UTF-16LE
*format.
* wsData - The post data,in UTF-16LE format.
* wsContentType - The content type of the request data,in UTF-16LE
*format.
* wsEncode - The encode type,in UTF-16LE format.
* wsHeader - The request header,in UTF-16LE format.
* response - Pointer to the FPDF_BSTR to receive the response
*data from server,,in UTF-16LE format.
* Return value:
* TRUE indicates success, otherwise FALSE.
**/
FPDF_BOOL (*FFI_PostRequestURL)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_WIDESTRING wsURL,
FPDF_WIDESTRING wsData,
FPDF_WIDESTRING wsContentType,
FPDF_WIDESTRING wsEncode,
FPDF_WIDESTRING wsHeader,
FPDF_BSTR* respone);
/**
* Method: FFI_PutRequestURL
* This method will put the request to the server URL.
* Interface Version:
* 2
* Implementation Required:
* yes
* Parameters:
* pThis - Pointer to the interface structure itself.
* wsURL - The string value of the server URL, in UTF-16LE
*format.
* wsData - The put data, in UTF-16LE format.
* wsEncode - The encode type, in UTR-16LE format.
* Return value:
* TRUE indicates success, otherwise FALSE.
**/
FPDF_BOOL (*FFI_PutRequestURL)(struct _FPDF_FORMFILLINFO* pThis,
FPDF_WIDESTRING wsURL,
FPDF_WIDESTRING wsData,
FPDF_WIDESTRING wsEncode);
#endif // PDF_ENABLE_XFA
} FPDF_FORMFILLINFO;
/**
* Function: FPDFDOC_InitFormFillEnvironment
* Init form fill environment.
* Comments:
* This function should be called before any form fill operation.
* Parameters:
* document - Handle to document. Returned by
*FPDF_LoadDocument function.
* pFormFillInfo - Pointer to a FPDF_FORMFILLINFO structure.
* Return Value:
* Return handler to the form fill module. NULL means fails.
**/
FPDF_EXPORT FPDF_FORMHANDLE FPDF_CALLCONV
FPDFDOC_InitFormFillEnvironment(FPDF_DOCUMENT document,
FPDF_FORMFILLINFO* formInfo);
/**
* Function: FPDFDOC_ExitFormFillEnvironment
* Exit form fill environment.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NULL.
**/
FPDF_EXPORT void FPDF_CALLCONV
FPDFDOC_ExitFormFillEnvironment(FPDF_FORMHANDLE hHandle);
/**
* Function: FORM_OnAfterLoadPage
* This method is required for implementing all the form related
*functions. Should be invoked after user
* successfully loaded a PDF page, and method
*FPDFDOC_InitFormFillEnvironment had been invoked.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NONE.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_OnAfterLoadPage(FPDF_PAGE page,
FPDF_FORMHANDLE hHandle);
/**
* Function: FORM_OnBeforeClosePage
* This method is required for implementing all the form related
*functions. Should be invoked before user
* close the PDF page.
* Parameters:
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NONE.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_OnBeforeClosePage(FPDF_PAGE page,
FPDF_FORMHANDLE hHandle);
/**
* Function: FORM_DoDocumentJSAction
* This method is required for performing Document-level JavaScript
*action. It should be invoked after the PDF document
* had been loaded.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NONE
* Comments:
* If there is Document-level JavaScript action embedded in the
*document, this method will execute the javascript action;
* otherwise, the method will do nothing.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_DoDocumentJSAction(FPDF_FORMHANDLE hHandle);
/**
* Function: FORM_DoDocumentOpenAction
* This method is required for performing open-action when the document
*is opened.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NONE
* Comments:
* This method will do nothing if there is no open-actions embedded in
*the document.
**/
FPDF_EXPORT void FPDF_CALLCONV
FORM_DoDocumentOpenAction(FPDF_FORMHANDLE hHandle);
// additional actions type of document.
#define FPDFDOC_AACTION_WC \
0x10 // WC, before closing document, JavaScript action.
#define FPDFDOC_AACTION_WS \
0x11 // WS, before saving document, JavaScript action.
#define FPDFDOC_AACTION_DS 0x12 // DS, after saving document, JavaScript
// action.
#define FPDFDOC_AACTION_WP \
0x13 // WP, before printing document, JavaScript action.
#define FPDFDOC_AACTION_DP \
0x14 // DP, after printing document, JavaScript action.
/**
* Function: FORM_DoDocumentAAction
* This method is required for performing the document's
*additional-action.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* aaType - The type of the additional-actions which defined
*above.
* Return Value:
* NONE
* Comments:
* This method will do nothing if there is no document
*additional-action corresponding to the specified aaType.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_DoDocumentAAction(FPDF_FORMHANDLE hHandle,
int aaType);
// Additional-action types of page object
#define FPDFPAGE_AACTION_OPEN \
0 // /O -- An action to be performed when the page is opened
#define FPDFPAGE_AACTION_CLOSE \
1 // /C -- An action to be performed when the page is closed
/**
* Function: FORM_DoPageAAction
* This method is required for performing the page object's
*additional-action when opened or closed.
* Parameters:
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* aaType - The type of the page object's additional-actions
*which defined above.
* Return Value:
* NONE
* Comments:
* This method will do nothing if no additional-action corresponding to
*the specified aaType exists.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_DoPageAAction(FPDF_PAGE page,
FPDF_FORMHANDLE hHandle,
int aaType);
/**
* Function: FORM_OnMouseMove
* You can call this member function when the mouse cursor moves.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* modifier - Indicates whether various virtual keys are down.
* page_x - Specifies the x-coordinate of the cursor in PDF user
*space.
* page_y - Specifies the y-coordinate of the cursor in PDF user
*space.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnMouseMove(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
/**
* Function: FORM_OnFocus
* This function focuses the form annotation at a given point. If the
* annotation at the point already has focus, nothing happens. If there
* is no annotation at the point, remove form focus.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage.
* modifier - Indicates whether various virtual keys are down.
* page_x - Specifies the x-coordinate of the cursor in PDF user
* space.
* page_y - Specifies the y-coordinate of the cursor in PDF user
* space.
* Return Value:
* TRUE if there is an annotation at the given point and it has focus.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnFocus(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
/**
* Function: FORM_OnLButtonDown
* You can call this member function when the user presses the left
*mouse button.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* modifier - Indicates whether various virtual keys are down.
* page_x - Specifies the x-coordinate of the cursor in PDF user
*space.
* page_y - Specifies the y-coordinate of the cursor in PDF user
*space.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnLButtonDown(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
/**
* Function: FORM_OnLButtonUp
* You can call this member function when the user releases the left
*mouse button.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* modifier - Indicates whether various virtual keys are down.
* page_x - Specifies the x-coordinate of the cursor in device.
* page_y - Specifies the y-coordinate of the cursor in device.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnLButtonUp(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
#ifdef PDF_ENABLE_XFA
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnRButtonDown(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnRButtonUp(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int modifier,
double page_x,
double page_y);
#endif // PDF_ENABLE_XFA
/**
* Function: FORM_OnKeyDown
* You can call this member function when a nonsystem key is pressed.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* nKeyCode - Indicates whether various virtual keys are down.
* modifier - Contains the scan code, key-transition code,
*previous key state, and context code.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnKeyDown(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int nKeyCode,
int modifier);
/**
* Function: FORM_OnKeyUp
* You can call this member function when a nonsystem key is released.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* nKeyCode - The virtual-key code of the given key.
* modifier - Contains the scan code, key-transition code,
*previous key state, and context code.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnKeyUp(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int nKeyCode,
int modifier);
/**
* Function: FORM_OnChar
* You can call this member function when a keystroke translates to a
*nonsystem character.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
*function.
* nChar - The character code value of the key.
* modifier - Contains the scan code, key-transition code,
*previous key state, and context code.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_OnChar(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
int nChar,
int modifier);
/**
* Experimental API
* Function: FORM_GetFocusedText
* You can call this function to obtain the text within the current
* focused field, if any.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* buffer - Buffer for holding the form text, encoded in
* UTF16-LE. If NULL, |buffer| is not modified.
* buflen - Length of |buffer| in bytes. If |buflen| is less
than the length of the form text string, |buffer| is
not modified.
* Return Value:
* Length in bytes for the text in the focused field.
**/
FPDF_EXPORT unsigned long FPDF_CALLCONV
FORM_GetFocusedText(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
void* buffer,
unsigned long buflen);
/**
* Function: FORM_GetSelectedText
* You can call this function to obtain selected text within
* a form text field or form combobox text field.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* buffer - Buffer for holding the selected text, encoded in
* UTF16-LE. If NULL, |buffer| is not modified.
* buflen - Length of |buffer| in bytes. If |buflen| is less
than the length of the selected text string,
|buffer| is not modified.
* Return Value:
* Length in bytes of selected text in form text field or form combobox
* text field.
**/
FPDF_EXPORT unsigned long FPDF_CALLCONV
FORM_GetSelectedText(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
void* buffer,
unsigned long buflen);
/**
* Function: FORM_ReplaceSelection
* You can call this function to replace the selected text in a form
* text field or user-editable form combobox text field with another
* text string (which can be empty or non-empty). If there is no
* selected text, this function will append the replacement text after
* the current caret position.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* wsText - The text to be inserted, in UTF-16LE format.
* Return Value:
* None.
**/
FPDF_EXPORT void FPDF_CALLCONV FORM_ReplaceSelection(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
FPDF_WIDESTRING wsText);
/**
* Function: FORM_CanUndo
* Find out if it is possible for the current focused widget in a given
* form to perform an undo operation.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* Return Value:
* True if it is possible to undo.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_CanUndo(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page);
/**
* Function: FORM_CanRedo
* Find out if it is possible for the current focused widget in a given
* form to perform a redo operation.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* Return Value:
* True if it is possible to redo.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_CanRedo(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page);
/**
* Function: FORM_Undo
* Make the current focussed widget perform an undo operation.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* Return Value:
* True if the undo operation succeeded.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_Undo(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page);
/**
* Function: FORM_Redo
* Make the current focussed widget perform a redo operation.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment.
* page - Handle to the page. Returned by FPDF_LoadPage
* function.
* Return Value:
* True if the redo operation succeeded.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FORM_Redo(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page);
/**
* Function: FORM_ForceToKillFocus.
* You can call this member function to force to kill the focus of the
*form field which got focus.
* It would kill the focus on the form field, save the value of form
*field if it's changed by user.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* TRUE indicates success; otherwise false.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FORM_ForceToKillFocus(FPDF_FORMHANDLE hHandle);
// Form Field Types
// The names of the defines are stable, but the specific values associated with
// them are not, so do not hardcode their values.
#define FPDF_FORMFIELD_UNKNOWN 0 // Unknown.
#define FPDF_FORMFIELD_PUSHBUTTON 1 // push button type.
#define FPDF_FORMFIELD_CHECKBOX 2 // check box type.
#define FPDF_FORMFIELD_RADIOBUTTON 3 // radio button type.
#define FPDF_FORMFIELD_COMBOBOX 4 // combo box type.
#define FPDF_FORMFIELD_LISTBOX 5 // list box type.
#define FPDF_FORMFIELD_TEXTFIELD 6 // text field type.
#define FPDF_FORMFIELD_SIGNATURE 7 // text field type.
#ifdef PDF_ENABLE_XFA
#define FPDF_FORMFIELD_XFA 8 // Generic XFA type.
#define FPDF_FORMFIELD_XFA_CHECKBOX 9 // XFA check box type.
#define FPDF_FORMFIELD_XFA_COMBOBOX 10 // XFA combo box type.
#define FPDF_FORMFIELD_XFA_IMAGEFIELD 11 // XFA image field type.
#define FPDF_FORMFIELD_XFA_LISTBOX 12 // XFA list box type.
#define FPDF_FORMFIELD_XFA_PUSHBUTTON 13 // XFA push button type.
#define FPDF_FORMFIELD_XFA_SIGNATURE 14 // XFA signture field type.
#define FPDF_FORMFIELD_XFA_TEXTFIELD 15 // XFA text field type.
#endif // PDF_ENABLE_XFA
#ifdef PDF_ENABLE_XFA
#define FPDF_FORMFIELD_COUNT 16
#else
#define FPDF_FORMFIELD_COUNT 8
#endif // PDF_ENABLE_XFA
#ifdef PDF_ENABLE_XFA
#define IS_XFA_FORMFIELD(type) \
((type == FPDF_FORMFIELD_XFA) || (type == FPDF_FORMFIELD_XFA_CHECKBOX) || \
(type == FPDF_FORMFIELD_XFA_COMBOBOX) || \
(type == FPDF_FORMFIELD_XFA_IMAGEFIELD) || \
(type == FPDF_FORMFIELD_XFA_LISTBOX) || \
(type == FPDF_FORMFIELD_XFA_PUSHBUTTON) || \
(type == FPDF_FORMFIELD_XFA_SIGNATURE) || \
(type == FPDF_FORMFIELD_XFA_TEXTFIELD))
#endif // PDF_ENABLE_XFA
/**
* Function: FPDFPage_HasFormFieldAtPoint
* Get the form field type by point.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment().
* page - Handle to the page. Returned by FPDF_LoadPage().
* page_x - X position in PDF "user space".
* page_y - Y position in PDF "user space".
* Return Value:
* Return the type of the form field; -1 indicates no field.
* See field types above.
**/
FPDF_EXPORT int FPDF_CALLCONV
FPDFPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
double page_x,
double page_y);
/**
* Function: FPDFPage_FormFieldZOrderAtPoint
* Get the form field z-order by point.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
* FPDFDOC_InitFormFillEnvironment().
* page - Handle to the page. Returned by FPDF_LoadPage().
* page_x - X position in PDF "user space".
* page_y - Y position in PDF "user space".
* Return Value:
* Return the z-order of the form field; -1 indicates no field.
* Higher numbers are closer to the front.
**/
FPDF_EXPORT int FPDF_CALLCONV
FPDFPage_FormFieldZOrderAtPoint(FPDF_FORMHANDLE hHandle,
FPDF_PAGE page,
double page_x,
double page_y);
/**
* Function: FPDF_SetFormFieldHighlightColor
* Set the highlight color of specified or all the form fields in the
*document.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* doc - Handle to the document. Returned by
*FPDF_LoadDocument function.
* fieldType - A 32-bit integer indicating the type of a form
*field(defined above).
* color - The highlight color of the form field.Constructed by
*0xxxrrggbb.
* Return Value:
* NONE.
* Comments:
* When the parameter fieldType is set to FPDF_FORMFIELD_UNKNOWN, the
* highlight color will be applied to all the form fields in the
* document.
* Please refresh the client window to show the highlight immediately
* if necessary.
**/
FPDF_EXPORT void FPDF_CALLCONV
FPDF_SetFormFieldHighlightColor(FPDF_FORMHANDLE hHandle,
int fieldType,
unsigned long color);
/**
* Function: FPDF_SetFormFieldHighlightAlpha
* Set the transparency of the form field highlight color in the
*document.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* doc - Handle to the document. Returned by
*FPDF_LoadDocument function.
* alpha - The transparency of the form field highlight color.
*between 0-255.
* Return Value:
* NONE.
**/
FPDF_EXPORT void FPDF_CALLCONV
FPDF_SetFormFieldHighlightAlpha(FPDF_FORMHANDLE hHandle, unsigned char alpha);
/**
* Function: FPDF_RemoveFormFieldHighlight
* Remove the form field highlight color in the document.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* Return Value:
* NONE.
* Comments:
* Please refresh the client window to remove the highlight immediately
*if necessary.
**/
FPDF_EXPORT void FPDF_CALLCONV
FPDF_RemoveFormFieldHighlight(FPDF_FORMHANDLE hHandle);
/**
* Function: FPDF_FFLDraw
* Render FormFields and popup window on a page to a device independent
*bitmap.
* Parameters:
* hHandle - Handle to the form fill module. Returned by
*FPDFDOC_InitFormFillEnvironment.
* 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
*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.
* Comments:
* This function is designed to render annotations that are
*user-interactive, which are widget annotation (for FormFields) and popup
*annotation.
* With FPDF_ANNOT flag, this function will render popup annotation
*when users mouse-hover on non-widget annotation. Regardless of FPDF_ANNOT flag,
*this function will always render widget annotations for FormFields.
* In order to implement the FormFill functions, implementation should
*call this function after rendering functions, such as FPDF_RenderPageBitmap or
*FPDF_RenderPageBitmap_Start, finish rendering the page contents.
**/
FPDF_EXPORT void FPDF_CALLCONV FPDF_FFLDraw(FPDF_FORMHANDLE hHandle,
FPDF_BITMAP bitmap,
FPDF_PAGE page,
int start_x,
int start_y,
int size_x,
int size_y,
int rotate,
int flags);
#ifdef _SKIA_SUPPORT_
FPDF_EXPORT void FPDF_CALLCONV FPDF_FFLRecord(FPDF_FORMHANDLE hHandle,
FPDF_RECORDER recorder,
FPDF_PAGE page,
int start_x,
int start_y,
int size_x,
int size_y,
int rotate,
int flags);
#endif
/**
* Experimental API
* Function: FPDF_GetFormType
* Returns the type of form contained in the PDF document.
* Parameters:
* document - Handle to document.
* Return Value:
* Integer value representing one of the FORMTYPE_ values.
* Comments:
* If |document| is NULL, then the return value is FORMTYPE_NONE.
**/
FPDF_EXPORT int FPDF_CALLCONV FPDF_GetFormType(FPDF_DOCUMENT document);
#ifdef PDF_ENABLE_XFA
/**
* Function: FPDF_LoadXFA
* If the document consists of XFA fields, there should call this
*method to load XFA fields.
* Parameters:
* document - Handle to document. Returned by
*FPDF_LoadDocument function.
* Return Value:
* TRUE indicates success,otherwise FALSE.
**/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_LoadXFA(FPDF_DOCUMENT document);
#endif // PDF_ENABLE_XFA
#ifdef __cplusplus
}
#endif
#endif // PUBLIC_FPDF_FORMFILL_H_