| // 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_EDIT_H_ |
| #define PUBLIC_FPDF_EDIT_H_ |
| |
| #include <stdint.h> |
| |
| // NOLINTNEXTLINE(build/include) |
| #include "fpdfview.h" |
| |
| #define FPDF_ARGB(a, r, g, b) \ |
| ((uint32_t)(((uint32_t)(b)&0xff) | (((uint32_t)(g)&0xff) << 8) | \ |
| (((uint32_t)(r)&0xff) << 16) | (((uint32_t)(a)&0xff) << 24))) |
| #define FPDF_GetBValue(argb) ((uint8_t)(argb)) |
| #define FPDF_GetGValue(argb) ((uint8_t)(((uint16_t)(argb)) >> 8)) |
| #define FPDF_GetRValue(argb) ((uint8_t)((argb) >> 16)) |
| #define FPDF_GetAValue(argb) ((uint8_t)((argb) >> 24)) |
| |
| // Refer to PDF Reference version 1.7 table 4.12 for all color space families. |
| #define FPDF_COLORSPACE_UNKNOWN 0 |
| #define FPDF_COLORSPACE_DEVICEGRAY 1 |
| #define FPDF_COLORSPACE_DEVICERGB 2 |
| #define FPDF_COLORSPACE_DEVICECMYK 3 |
| #define FPDF_COLORSPACE_CALGRAY 4 |
| #define FPDF_COLORSPACE_CALRGB 5 |
| #define FPDF_COLORSPACE_LAB 6 |
| #define FPDF_COLORSPACE_ICCBASED 7 |
| #define FPDF_COLORSPACE_SEPARATION 8 |
| #define FPDF_COLORSPACE_DEVICEN 9 |
| #define FPDF_COLORSPACE_INDEXED 10 |
| #define FPDF_COLORSPACE_PATTERN 11 |
| |
| // The page object constants. |
| #define FPDF_PAGEOBJ_UNKNOWN 0 |
| #define FPDF_PAGEOBJ_TEXT 1 |
| #define FPDF_PAGEOBJ_PATH 2 |
| #define FPDF_PAGEOBJ_IMAGE 3 |
| #define FPDF_PAGEOBJ_SHADING 4 |
| #define FPDF_PAGEOBJ_FORM 5 |
| |
| // The path segment constants. |
| #define FPDF_SEGMENT_UNKNOWN -1 |
| #define FPDF_SEGMENT_LINETO 0 |
| #define FPDF_SEGMENT_BEZIERTO 1 |
| #define FPDF_SEGMENT_MOVETO 2 |
| |
| #define FPDF_FILLMODE_NONE 0 |
| #define FPDF_FILLMODE_ALTERNATE 1 |
| #define FPDF_FILLMODE_WINDING 2 |
| |
| #define FPDF_FONT_TYPE1 1 |
| #define FPDF_FONT_TRUETYPE 2 |
| |
| #define FPDF_LINECAP_BUTT 0 |
| #define FPDF_LINECAP_ROUND 1 |
| #define FPDF_LINECAP_PROJECTING_SQUARE 2 |
| |
| #define FPDF_LINEJOIN_MITER 0 |
| #define FPDF_LINEJOIN_ROUND 1 |
| #define FPDF_LINEJOIN_BEVEL 2 |
| |
| // See FPDF_SetPrintMode() for descriptions. |
| #define FPDF_PRINTMODE_EMF 0 |
| #define FPDF_PRINTMODE_TEXTONLY 1 |
| #define FPDF_PRINTMODE_POSTSCRIPT2 2 |
| #define FPDF_PRINTMODE_POSTSCRIPT3 3 |
| #define FPDF_PRINTMODE_POSTSCRIPT2_PASSTHROUGH 4 |
| #define FPDF_PRINTMODE_POSTSCRIPT3_PASSTHROUGH 5 |
| #define FPDF_PRINTMODE_EMF_IMAGE_MASKS 6 |
| |
| typedef struct FPDF_IMAGEOBJ_METADATA { |
| // The image width in pixels. |
| unsigned int width; |
| // The image height in pixels. |
| unsigned int height; |
| // The image's horizontal pixel-per-inch. |
| float horizontal_dpi; |
| // The image's vertical pixel-per-inch. |
| float vertical_dpi; |
| // The number of bits used to represent each pixel. |
| unsigned int bits_per_pixel; |
| // The image's colorspace. See above for the list of FPDF_COLORSPACE_*. |
| int colorspace; |
| // The image's marked content ID. Useful for pairing with associated alt-text. |
| // A value of -1 indicates no ID. |
| int marked_content_id; |
| } FPDF_IMAGEOBJ_METADATA; |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif // __cplusplus |
| |
| // Create a new PDF document. |
| // |
| // Returns a handle to a new document, or NULL on failure. |
| FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument(); |
| |
| // Create a new PDF page. |
| // |
| // document - handle to document. |
| // page_index - suggested 0-based index of the page to create. If it is larger |
| // than document's current last index(L), the created page index |
| // is the next available index -- L+1. |
| // width - the page width in points. |
| // height - the page height in points. |
| // |
| // Returns the handle to the new page or NULL on failure. |
| // |
| // The page should be closed with FPDF_ClosePage() when finished as |
| // with any other page in the document. |
| FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document, |
| int page_index, |
| double width, |
| double height); |
| |
| // Delete the page at |page_index|. |
| // |
| // document - handle to document. |
| // page_index - the index of the page to delete. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document, |
| int page_index); |
| |
| // Get the rotation of |page|. |
| // |
| // page - handle to a page |
| // |
| // Returns one of the following indicating the page rotation: |
| // 0 - No rotation. |
| // 1 - Rotated 90 degrees clockwise. |
| // 2 - Rotated 180 degrees clockwise. |
| // 3 - Rotated 270 degrees clockwise. |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page); |
| |
| // Set rotation for |page|. |
| // |
| // page - handle to a page. |
| // rotate - the rotation value, one of: |
| // 0 - No rotation. |
| // 1 - Rotated 90 degrees clockwise. |
| // 2 - Rotated 180 degrees clockwise. |
| // 3 - Rotated 270 degrees clockwise. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page, int rotate); |
| |
| // Insert |page_obj| into |page|. |
| // |
| // page - handle to a page |
| // page_obj - handle to a page object. The |page_obj| will be automatically |
| // freed. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page, |
| FPDF_PAGEOBJECT page_obj); |
| |
| // Experimental API. |
| // Remove |page_obj| from |page|. |
| // |
| // page - handle to a page |
| // page_obj - handle to a page object to be removed. |
| // |
| // Returns TRUE on success. |
| // |
| // Ownership is transferred to the caller. Call FPDFPageObj_Destroy() to free |
| // it. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPage_RemoveObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj); |
| |
| // Get number of page objects inside |page|. |
| // |
| // page - handle to a page. |
| // |
| // Returns the number of objects in |page|. |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page); |
| |
| // Get object in |page| at |index|. |
| // |
| // page - handle to a page. |
| // index - the index of a page object. |
| // |
| // Returns the handle to the page object, or NULL on failed. |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page, |
| int index); |
| |
| // Checks if |page| contains transparency. |
| // |
| // page - handle to a page. |
| // |
| // Returns TRUE if |page| contains transparency. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page); |
| |
| // Generate the content of |page|. |
| // |
| // page - handle to a page. |
| // |
| // Returns TRUE on success. |
| // |
| // Before you save the page to a file, or reload the page, you must call |
| // |FPDFPage_GenerateContent| or any changes to |page| will be lost. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page); |
| |
| // Destroy |page_obj| by releasing its resources. |page_obj| must have been |
| // created by FPDFPageObj_CreateNew{Path|Rect}() or |
| // FPDFPageObj_New{Text|Image}Obj(). This function must be called on |
| // newly-created objects if they are not added to a page through |
| // FPDFPage_InsertObject() or to an annotation through FPDFAnnot_AppendObject(). |
| // |
| // page_obj - handle to a page object. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_obj); |
| |
| // Checks if |page_object| contains transparency. |
| // |
| // page_object - handle to a page object. |
| // |
| // Returns TRUE if |page_object| contains transparency. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT page_object); |
| |
| // Get type of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // |
| // Returns one of the FPDF_PAGEOBJ_* values on success, FPDF_PAGEOBJ_UNKNOWN on |
| // error. |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT page_object); |
| |
| // Transform |page_object| by the given matrix. |
| // |
| // page_object - handle to a page object. |
| // a - matrix value. |
| // b - matrix value. |
| // c - matrix value. |
| // d - matrix value. |
| // e - matrix value. |
| // f - matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and can be used to scale, rotate, shear and translate the |page_object|. |
| FPDF_EXPORT void FPDF_CALLCONV |
| FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object, |
| double a, |
| double b, |
| double c, |
| double d, |
| double e, |
| double f); |
| |
| // Transform all annotations in |page|. |
| // |
| // page - handle to a page. |
| // a - matrix value. |
| // b - matrix value. |
| // c - matrix value. |
| // d - matrix value. |
| // e - matrix value. |
| // f - matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and can be used to scale, rotate, shear and translate the |page| annotations. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFPage_TransformAnnots(FPDF_PAGE page, |
| double a, |
| double b, |
| double c, |
| double d, |
| double e, |
| double f); |
| |
| // Create a new image object. |
| // |
| // document - handle to a document. |
| // |
| // Returns a handle to a new image object. |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFPageObj_NewImageObj(FPDF_DOCUMENT document); |
| |
| // Experimental API. |
| // Get number of content marks in |page_object|. |
| // |
| // page_object - handle to a page object. |
| // |
| // Returns the number of content marks in |page_object|, or -1 in case of |
| // failure. |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_CountMarks(FPDF_PAGEOBJECT page_object); |
| |
| // Experimental API. |
| // Get content mark in |page_object| at |index|. |
| // |
| // page_object - handle to a page object. |
| // index - the index of a page object. |
| // |
| // Returns the handle to the content mark, or NULL on failure. The handle is |
| // still owned by the library, and it should not be freed directly. It becomes |
| // invalid if the page object is destroyed, either directly or indirectly by |
| // unloading the page. |
| FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV |
| FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index); |
| |
| // Experimental API. |
| // Add a new content mark to a |page_object|. |
| // |
| // page_object - handle to a page object. |
| // name - the name (tag) of the mark. |
| // |
| // Returns the handle to the content mark, or NULL on failure. The handle is |
| // still owned by the library, and it should not be freed directly. It becomes |
| // invalid if the page object is destroyed, either directly or indirectly by |
| // unloading the page. |
| FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV |
| FPDFPageObj_AddMark(FPDF_PAGEOBJECT page_object, FPDF_BYTESTRING name); |
| |
| // Experimental API. |
| // Removes a content |mark| from a |page_object|. |
| // The mark handle will be invalid after the removal. |
| // |
| // page_object - handle to a page object. |
| // mark - handle to a content mark in that object to remove. |
| // |
| // Returns TRUE if the operation succeeded, FALSE if it failed. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_RemoveMark(FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark); |
| |
| // Experimental API. |
| // Get the name of a content mark. |
| // |
| // mark - handle to a content mark. |
| // buffer - buffer for holding the returned name in UTF-16LE. This is only |
| // modified if |buflen| is longer than the length of the name. |
| // Optional, pass null to just retrieve the size of the buffer |
| // needed. |
| // buflen - length of the buffer. |
| // out_buflen - pointer to variable that will receive the minimum buffer size |
| // to contain the name. Not filled if FALSE is returned. |
| // |
| // Returns TRUE if the operation succeeded, FALSE if it failed. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen); |
| |
| // Experimental API. |
| // Get the number of key/value pair parameters in |mark|. |
| // |
| // mark - handle to a content mark. |
| // |
| // Returns the number of key/value pair parameters |mark|, or -1 in case of |
| // failure. |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObjMark_CountParams(FPDF_PAGEOBJECTMARK mark); |
| |
| // Experimental API. |
| // Get the key of a property in a content mark. |
| // |
| // mark - handle to a content mark. |
| // index - index of the property. |
| // buffer - buffer for holding the returned key in UTF-16LE. This is only |
| // modified if |buflen| is longer than the length of the key. |
| // Optional, pass null to just retrieve the size of the buffer |
| // needed. |
| // buflen - length of the buffer. |
| // out_buflen - pointer to variable that will receive the minimum buffer size |
| // to contain the key. Not filled if FALSE is returned. |
| // |
| // Returns TRUE if the operation was successful, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamKey(FPDF_PAGEOBJECTMARK mark, |
| unsigned long index, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen); |
| |
| // Experimental API. |
| // Get the type of the value of a property in a content mark by key. |
| // |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // |
| // Returns the type of the value, or FPDF_OBJECT_UNKNOWN in case of failure. |
| FPDF_EXPORT FPDF_OBJECT_TYPE FPDF_CALLCONV |
| FPDFPageObjMark_GetParamValueType(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key); |
| |
| // Experimental API. |
| // Get the value of a number property in a content mark by key as int. |
| // FPDFPageObjMark_GetParamValueType() should have returned FPDF_OBJECT_NUMBER |
| // for this property. |
| // |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // out_value - pointer to variable that will receive the value. Not filled if |
| // false is returned. |
| // |
| // Returns TRUE if the key maps to a number value, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamIntValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| int* out_value); |
| |
| // Experimental API. |
| // Get the value of a string property in a content mark by key. |
| // |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // buffer - buffer for holding the returned value in UTF-16LE. This is |
| // only modified if |buflen| is longer than the length of the |
| // value. |
| // Optional, pass null to just retrieve the size of the buffer |
| // needed. |
| // buflen - length of the buffer. |
| // out_buflen - pointer to variable that will receive the minimum buffer size |
| // to contain the value. Not filled if FALSE is returned. |
| // |
| // Returns TRUE if the key maps to a string/blob value, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamStringValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen); |
| |
| // Experimental API. |
| // Get the value of a blob property in a content mark by key. |
| // |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // buffer - buffer for holding the returned value. This is only modified |
| // if |buflen| is at least as long as the length of the value. |
| // Optional, pass null to just retrieve the size of the buffer |
| // needed. |
| // buflen - length of the buffer. |
| // out_buflen - pointer to variable that will receive the minimum buffer size |
| // to contain the value. Not filled if FALSE is returned. |
| // |
| // Returns TRUE if the key maps to a string/blob value, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_GetParamBlobValue(FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* buffer, |
| unsigned long buflen, |
| unsigned long* out_buflen); |
| |
| // Experimental API. |
| // Set the value of an int property in a content mark by key. If a parameter |
| // with key |key| exists, its value is set to |value|. Otherwise, it is added as |
| // a new parameter. |
| // |
| // document - handle to the document. |
| // page_object - handle to the page object with the mark. |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // value - int value to set. |
| // |
| // Returns TRUE if the operation succeeded, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetIntParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| int value); |
| |
| // Experimental API. |
| // Set the value of a string property in a content mark by key. If a parameter |
| // with key |key| exists, its value is set to |value|. Otherwise, it is added as |
| // a new parameter. |
| // |
| // document - handle to the document. |
| // page_object - handle to the page object with the mark. |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // value - string value to set. |
| // |
| // Returns TRUE if the operation succeeded, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetStringParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| FPDF_BYTESTRING value); |
| |
| // Experimental API. |
| // Set the value of a blob property in a content mark by key. If a parameter |
| // with key |key| exists, its value is set to |value|. Otherwise, it is added as |
| // a new parameter. |
| // |
| // document - handle to the document. |
| // page_object - handle to the page object with the mark. |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // value - pointer to blob value to set. |
| // value_len - size in bytes of |value|. |
| // |
| // Returns TRUE if the operation succeeded, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_SetBlobParam(FPDF_DOCUMENT document, |
| FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key, |
| void* value, |
| unsigned long value_len); |
| |
| // Experimental API. |
| // Removes a property from a content mark by key. |
| // |
| // page_object - handle to the page object with the mark. |
| // mark - handle to a content mark. |
| // key - string key of the property. |
| // |
| // Returns TRUE if the operation succeeded, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObjMark_RemoveParam(FPDF_PAGEOBJECT page_object, |
| FPDF_PAGEOBJECTMARK mark, |
| FPDF_BYTESTRING key); |
| |
| // Load an image from a JPEG image file and then set it into |image_object|. |
| // |
| // pages - pointer to the start of all loaded pages, may be NULL. |
| // count - number of |pages|, may be 0. |
| // image_object - handle to an image object. |
| // file_access - file access handler which specifies the JPEG image file. |
| // |
| // Returns TRUE on success. |
| // |
| // The image object might already have an associated image, which is shared and |
| // cached by the loaded pages. In that case, we need to clear the cached image |
| // for all the loaded pages. Pass |pages| and page count (|count|) to this API |
| // to clear the image cache. If the image is not previously shared, or NULL is a |
| // valid |pages| value. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_LoadJpegFile(FPDF_PAGE* pages, |
| int count, |
| FPDF_PAGEOBJECT image_object, |
| FPDF_FILEACCESS* file_access); |
| |
| // Load an image from a JPEG image file and then set it into |image_object|. |
| // |
| // pages - pointer to the start of all loaded pages, may be NULL. |
| // count - number of |pages|, may be 0. |
| // image_object - handle to an image object. |
| // file_access - file access handler which specifies the JPEG image file. |
| // |
| // Returns TRUE on success. |
| // |
| // The image object might already have an associated image, which is shared and |
| // cached by the loaded pages. In that case, we need to clear the cached image |
| // for all the loaded pages. Pass |pages| and page count (|count|) to this API |
| // to clear the image cache. If the image is not previously shared, or NULL is a |
| // valid |pages| value. This function loads the JPEG image inline, so the image |
| // content is copied to the file. This allows |file_access| and its associated |
| // data to be deleted after this function returns. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_LoadJpegFileInline(FPDF_PAGE* pages, |
| int count, |
| FPDF_PAGEOBJECT image_object, |
| FPDF_FILEACCESS* file_access); |
| |
| // Experimental API. |
| // Get the transform matrix of an image object. |
| // |
| // image_object - handle to an image object. |
| // a - matrix value. |
| // b - matrix value. |
| // c - matrix value. |
| // d - matrix value. |
| // e - matrix value. |
| // f - matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and used to scale, rotate, shear and translate the image. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_GetMatrix(FPDF_PAGEOBJECT image_object, |
| double* a, |
| double* b, |
| double* c, |
| double* d, |
| double* e, |
| double* f); |
| |
| // Set the transform matrix of |image_object|. |
| // |
| // image_object - handle to an image object. |
| // a - matrix value. |
| // b - matrix value. |
| // c - matrix value. |
| // d - matrix value. |
| // e - matrix value. |
| // f - matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and can be used to scale, rotate, shear and translate the |image_object|. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_SetMatrix(FPDF_PAGEOBJECT image_object, |
| double a, |
| double b, |
| double c, |
| double d, |
| double e, |
| double f); |
| |
| // Set |bitmap| to |image_object|. |
| // |
| // pages - pointer to the start of all loaded pages, may be NULL. |
| // count - number of |pages|, may be 0. |
| // image_object - handle to an image object. |
| // bitmap - handle of the bitmap. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_SetBitmap(FPDF_PAGE* pages, |
| int count, |
| FPDF_PAGEOBJECT image_object, |
| FPDF_BITMAP bitmap); |
| |
| // Get a bitmap rasterisation of |image_object|. The returned bitmap will be |
| // owned by the caller, and FPDFBitmap_Destroy() must be called on the returned |
| // bitmap when it is no longer needed. |
| // |
| // image_object - handle to an image object. |
| // |
| // Returns the bitmap. |
| FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV |
| FPDFImageObj_GetBitmap(FPDF_PAGEOBJECT image_object); |
| |
| // Get the decoded image data of |image_object|. The decoded data is the |
| // uncompressed image data, i.e. the raw image data after having all filters |
| // applied. |buffer| is only modified if |buflen| is longer than the length of |
| // the decoded image data. |
| // |
| // image_object - handle to an image object. |
| // buffer - buffer for holding the decoded image data. |
| // buflen - length of the buffer in bytes. |
| // |
| // Returns the length of the decoded image data. |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFImageObj_GetImageDataDecoded(FPDF_PAGEOBJECT image_object, |
| void* buffer, |
| unsigned long buflen); |
| |
| // Get the raw image data of |image_object|. The raw data is the image data as |
| // stored in the PDF without applying any filters. |buffer| is only modified if |
| // |buflen| is longer than the length of the raw image data. |
| // |
| // image_object - handle to an image object. |
| // buffer - buffer for holding the raw image data. |
| // buflen - length of the buffer in bytes. |
| // |
| // Returns the length of the raw image data. |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFImageObj_GetImageDataRaw(FPDF_PAGEOBJECT image_object, |
| void* buffer, |
| unsigned long buflen); |
| |
| // Get the number of filters (i.e. decoders) of the image in |image_object|. |
| // |
| // image_object - handle to an image object. |
| // |
| // Returns the number of |image_object|'s filters. |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFImageObj_GetImageFilterCount(FPDF_PAGEOBJECT image_object); |
| |
| // Get the filter at |index| of |image_object|'s list of filters. Note that the |
| // filters need to be applied in order, i.e. the first filter should be applied |
| // first, then the second, etc. |buffer| is only modified if |buflen| is longer |
| // than the length of the filter string. |
| // |
| // image_object - handle to an image object. |
| // index - the index of the filter requested. |
| // buffer - buffer for holding filter string, encoded in UTF-8. |
| // buflen - length of the buffer. |
| // |
| // Returns the length of the filter string. |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFImageObj_GetImageFilter(FPDF_PAGEOBJECT image_object, |
| int index, |
| void* buffer, |
| unsigned long buflen); |
| |
| // Get the image metadata of |image_object|, including dimension, DPI, bits per |
| // pixel, and colorspace. If the |image_object| is not an image object or if it |
| // does not have an image, then the return value will be false. Otherwise, |
| // failure to retrieve any specific parameter would result in its value being 0. |
| // |
| // image_object - handle to an image object. |
| // page - handle to the page that |image_object| is on. Required for |
| // retrieving the image's bits per pixel and colorspace. |
| // metadata - receives the image metadata; must not be NULL. |
| // |
| // Returns true if successful. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFImageObj_GetImageMetadata(FPDF_PAGEOBJECT image_object, |
| FPDF_PAGE page, |
| FPDF_IMAGEOBJ_METADATA* metadata); |
| |
| // Create a new path object at an initial position. |
| // |
| // x - initial horizontal position. |
| // y - initial vertical position. |
| // |
| // Returns a handle to a new path object. |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewPath(float x, |
| float y); |
| |
| // Create a closed path consisting of a rectangle. |
| // |
| // x - horizontal position for the left boundary of the rectangle. |
| // y - vertical position for the bottom boundary of the rectangle. |
| // w - width of the rectangle. |
| // h - height of the rectangle. |
| // |
| // Returns a handle to the new path object. |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewRect(float x, |
| float y, |
| float w, |
| float h); |
| |
| // Get the bounding box of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // left - pointer where the left coordinate will be stored |
| // bottom - pointer where the bottom coordinate will be stored |
| // right - pointer where the right coordinate will be stored |
| // top - pointer where the top coordinate will be stored |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetBounds(FPDF_PAGEOBJECT page_object, |
| float* left, |
| float* bottom, |
| float* right, |
| float* top); |
| |
| // Set the blend mode of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // blend_mode - string containing the blend mode. |
| // |
| // Blend mode can be one of following: Color, ColorBurn, ColorDodge, Darken, |
| // Difference, Exclusion, HardLight, Hue, Lighten, Luminosity, Multiply, Normal, |
| // Overlay, Saturation, Screen, SoftLight |
| FPDF_EXPORT void FPDF_CALLCONV |
| FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object, |
| FPDF_BYTESTRING blend_mode); |
| |
| // Set the stroke RGBA of a page object. Range of values: 0 - 255. |
| // |
| // page_object - the handle to the page object. |
| // R - the red component for the object's stroke color. |
| // G - the green component for the object's stroke color. |
| // B - the blue component for the object's stroke color. |
| // A - the stroke alpha for the object. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetStrokeColor(FPDF_PAGEOBJECT page_object, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A); |
| |
| // Get the stroke RGBA of a page object. Range of values: 0 - 255. |
| // |
| // page_object - the handle to the page object. |
| // R - the red component of the path stroke color. |
| // G - the green component of the object's stroke color. |
| // B - the blue component of the object's stroke color. |
| // A - the stroke alpha of the object. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetStrokeColor(FPDF_PAGEOBJECT page_object, |
| unsigned int* R, |
| unsigned int* G, |
| unsigned int* B, |
| unsigned int* A); |
| |
| // Set the stroke width of a page object. |
| // |
| // path - the handle to the page object. |
| // width - the width of the stroke. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetStrokeWidth(FPDF_PAGEOBJECT page_object, float width); |
| |
| // Experimental API. |
| // Get the stroke width of a page object. |
| // |
| // path - the handle to the page object. |
| // width - the width of the stroke. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetStrokeWidth(FPDF_PAGEOBJECT page_object, float* width); |
| |
| // Get the line join of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // |
| // Returns the line join, or -1 on failure. |
| // Line join can be one of following: FPDF_LINEJOIN_MITER, FPDF_LINEJOIN_ROUND, |
| // FPDF_LINEJOIN_BEVEL |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_GetLineJoin(FPDF_PAGEOBJECT page_object); |
| |
| // Set the line join of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // line_join - line join |
| // |
| // Line join can be one of following: FPDF_LINEJOIN_MITER, FPDF_LINEJOIN_ROUND, |
| // FPDF_LINEJOIN_BEVEL |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineJoin(FPDF_PAGEOBJECT page_object, int line_join); |
| |
| // Get the line cap of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // |
| // Returns the line cap, or -1 on failure. |
| // Line cap can be one of following: FPDF_LINECAP_BUTT, FPDF_LINECAP_ROUND, |
| // FPDF_LINECAP_PROJECTING_SQUARE |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFPageObj_GetLineCap(FPDF_PAGEOBJECT page_object); |
| |
| // Set the line cap of |page_object|. |
| // |
| // page_object - handle to a page object. |
| // line_cap - line cap |
| // |
| // Line cap can be one of following: FPDF_LINECAP_BUTT, FPDF_LINECAP_ROUND, |
| // FPDF_LINECAP_PROJECTING_SQUARE |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetLineCap(FPDF_PAGEOBJECT page_object, int line_cap); |
| |
| // Set the fill RGBA of a page object. Range of values: 0 - 255. |
| // |
| // page_object - the handle to the page object. |
| // R - the red component for the object's fill color. |
| // G - the green component for the object's fill color. |
| // B - the blue component for the object's fill color. |
| // A - the fill alpha for the object. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object, |
| unsigned int R, |
| unsigned int G, |
| unsigned int B, |
| unsigned int A); |
| |
| // Get the fill RGBA of a page object. Range of values: 0 - 255. |
| // |
| // page_object - the handle to the page object. |
| // R - the red component of the object's fill color. |
| // G - the green component of the object's fill color. |
| // B - the blue component of the object's fill color. |
| // A - the fill alpha of the object. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPageObj_GetFillColor(FPDF_PAGEOBJECT page_object, |
| unsigned int* R, |
| unsigned int* G, |
| unsigned int* B, |
| unsigned int* A); |
| |
| // Experimental API. |
| // Get number of segments inside |path|. |
| // |
| // path - handle to a path. |
| // |
| // A segment is a command, created by e.g. FPDFPath_MoveTo(), |
| // FPDFPath_LineTo() or FPDFPath_BezierTo(). |
| // |
| // Returns the number of objects in |path| or -1 on failure. |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPath_CountSegments(FPDF_PAGEOBJECT path); |
| |
| // Experimental API. |
| // Get segment in |path| at |index|. |
| // |
| // path - handle to a path. |
| // index - the index of a segment. |
| // |
| // Returns the handle to the segment, or NULL on faiure. |
| FPDF_EXPORT FPDF_PATHSEGMENT FPDF_CALLCONV |
| FPDFPath_GetPathSegment(FPDF_PAGEOBJECT path, int index); |
| |
| // Experimental API. |
| // Get coordinates of |segment|. |
| // |
| // segment - handle to a segment. |
| // x - the horizontal position of the segment. |
| // y - the vertical position of the segment. |
| // |
| // Returns TRUE on success, otherwise |x| and |y| is not set. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPathSegment_GetPoint(FPDF_PATHSEGMENT segment, float* x, float* y); |
| |
| // Experimental API. |
| // Get type of |segment|. |
| // |
| // segment - handle to a segment. |
| // |
| // Returns one of the FPDF_SEGMENT_* values on success, |
| // FPDF_SEGMENT_UNKNOWN on error. |
| FPDF_EXPORT int FPDF_CALLCONV FPDFPathSegment_GetType(FPDF_PATHSEGMENT segment); |
| |
| // Experimental API. |
| // Gets if the |segment| closes the current subpath of a given path. |
| // |
| // segment - handle to a segment. |
| // |
| // Returns close flag for non-NULL segment, FALSE otherwise. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFPathSegment_GetClose(FPDF_PATHSEGMENT segment); |
| |
| // Move a path's current point. |
| // |
| // path - the handle to the path object. |
| // x - the horizontal position of the new current point. |
| // y - the vertical position of the new current point. |
| // |
| // Note that no line will be created between the previous current point and the |
| // new one. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_MoveTo(FPDF_PAGEOBJECT path, |
| float x, |
| float y); |
| |
| // Add a line between the current point and a new point in the path. |
| // |
| // path - the handle to the path object. |
| // x - the horizontal position of the new point. |
| // y - the vertical position of the new point. |
| // |
| // The path's current point is changed to (x, y). |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_LineTo(FPDF_PAGEOBJECT path, |
| float x, |
| float y); |
| |
| // Add a cubic Bezier curve to the given path, starting at the current point. |
| // |
| // path - the handle to the path object. |
| // x1 - the horizontal position of the first Bezier control point. |
| // y1 - the vertical position of the first Bezier control point. |
| // x2 - the horizontal position of the second Bezier control point. |
| // y2 - the vertical position of the second Bezier control point. |
| // x3 - the horizontal position of the ending point of the Bezier curve. |
| // y3 - the vertical position of the ending point of the Bezier curve. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_BezierTo(FPDF_PAGEOBJECT path, |
| float x1, |
| float y1, |
| float x2, |
| float y2, |
| float x3, |
| float y3); |
| |
| // Close the current subpath of a given path. |
| // |
| // path - the handle to the path object. |
| // |
| // This will add a line between the current point and the initial point of the |
| // subpath, thus terminating the current subpath. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_Close(FPDF_PAGEOBJECT path); |
| |
| // Set the drawing mode of a path. |
| // |
| // path - the handle to the path object. |
| // fillmode - the filling mode to be set: one of the FPDF_FILLMODE_* flags. |
| // stroke - a boolean specifying if the path should be stroked or not. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_SetDrawMode(FPDF_PAGEOBJECT path, |
| int fillmode, |
| FPDF_BOOL stroke); |
| |
| // Experimental API. |
| // Get the drawing mode of a path. |
| // |
| // path - the handle to the path object. |
| // fillmode - the filling mode of the path: one of the FPDF_FILLMODE_* flags. |
| // stroke - a boolean specifying if the path is stroked or not. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_GetDrawMode(FPDF_PAGEOBJECT path, |
| int* fillmode, |
| FPDF_BOOL* stroke); |
| |
| // Experimental API. |
| // Get the transform matrix of a path. |
| // |
| // path - handle to a path. |
| // matrix - pointer to struct to receive the matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and used to scale, rotate, shear and translate the path. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_GetMatrix(FPDF_PAGEOBJECT path, |
| FS_MATRIX* matrix); |
| |
| // Experimental API. |
| // Set the transform matrix of a path. |
| // |
| // path - handle to a path. |
| // matrix - pointer to struct with the matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and can be used to scale, rotate, shear and translate the path. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_SetMatrix(FPDF_PAGEOBJECT path, |
| const FS_MATRIX* matrix); |
| |
| // Create a new text object using one of the standard PDF fonts. |
| // |
| // document - handle to the document. |
| // font - string containing the font name, without spaces. |
| // font_size - the font size for the new text object. |
| // |
| // Returns a handle to a new text object, or NULL on failure |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFPageObj_NewTextObj(FPDF_DOCUMENT document, |
| FPDF_BYTESTRING font, |
| float font_size); |
| |
| // Set the text for a textobject. If it had text, it will be replaced. |
| // |
| // text_object - handle to the text object. |
| // text - the UTF-16LE encoded string containing the text to be added. |
| // |
| // Returns TRUE on success |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFText_SetText(FPDF_PAGEOBJECT text_object, FPDF_WIDESTRING text); |
| |
| // Returns a font object loaded from a stream of data. The font is loaded |
| // into the document. |
| // |
| // document - handle to the document. |
| // data - the stream of data, which will be copied by the font object. |
| // size - size of the stream, in bytes. |
| // font_type - FPDF_FONT_TYPE1 or FPDF_FONT_TRUETYPE depending on the font |
| // type. |
| // cid - a boolean specifying if the font is a CID font or not. |
| // |
| // The loaded font can be closed using FPDFFont_Close. |
| // |
| // Returns NULL on failure |
| FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFText_LoadFont(FPDF_DOCUMENT document, |
| const uint8_t* data, |
| uint32_t size, |
| int font_type, |
| FPDF_BOOL cid); |
| |
| // Experimental API. |
| // Loads one of the standard 14 fonts per PDF spec 1.7 page 416. The preferred |
| // way of using font style is using a dash to separate the name from the style, |
| // for example 'Helvetica-BoldItalic'. |
| // |
| // document - handle to the document. |
| // font - string containing the font name, without spaces. |
| // |
| // The loaded font can be closed using FPDFFont_Close. |
| // |
| // Returns NULL on failure. |
| FPDF_EXPORT FPDF_FONT FPDF_CALLCONV |
| FPDFText_LoadStandardFont(FPDF_DOCUMENT document, FPDF_BYTESTRING font); |
| |
| // Experimental API. |
| // Get the transform matrix of a text object. |
| // |
| // text - handle to a text. |
| // matrix - pointer to struct with the matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and used to scale, rotate, shear and translate the text. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFTextObj_GetMatrix(FPDF_PAGEOBJECT text, |
| FS_MATRIX* matrix); |
| |
| // Experimental API. |
| // Get the font size of a text object. |
| // |
| // text - handle to a text. |
| // |
| // Returns the font size of the text object, measured in points (about 1/72 |
| // inch) on success; 0 on failure. |
| FPDF_EXPORT float FPDF_CALLCONV FPDFTextObj_GetFontSize(FPDF_PAGEOBJECT text); |
| |
| // Close a loaded PDF font. |
| // |
| // font - Handle to the loaded font. |
| FPDF_EXPORT void FPDF_CALLCONV FPDFFont_Close(FPDF_FONT font); |
| |
| // Create a new text object using a loaded font. |
| // |
| // document - handle to the document. |
| // font - handle to the font object. |
| // font_size - the font size for the new text object. |
| // |
| // Returns a handle to a new text object, or NULL on failure |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document, |
| FPDF_FONT font, |
| float font_size); |
| |
| // Experimental API. |
| // Get the text rendering mode of a text object. |
| // |
| // text - the handle to the text object. |
| // |
| // Returns one of the known FPDF_TEXT_RENDERMODE enum values on success, |
| // FPDF_TEXTRENDERMODE_UNKNOWN on error. |
| FPDF_EXPORT FPDF_TEXT_RENDERMODE FPDF_CALLCONV |
| FPDFTextObj_GetTextRenderMode(FPDF_PAGEOBJECT text); |
| |
| // Experimental API. |
| // Set the text rendering mode of a text object. |
| // |
| // text - the handle to the text object. |
| // render_mode - the FPDF_TEXT_RENDERMODE enum value to be set (cannot set to |
| // FPDF_TEXTRENDERMODE_UNKNOWN). |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFTextObj_SetTextRenderMode(FPDF_PAGEOBJECT text, |
| FPDF_TEXT_RENDERMODE render_mode); |
| |
| // Experimental API. |
| // Get the font name of a text object. |
| // |
| // text - the handle to the text object. |
| // buffer - the address of a buffer that receives the font name. |
| // length - the size, in bytes, of |buffer|. |
| // |
| // Returns the number of bytes in the font name (including the trailing NUL |
| // character) on success, 0 on error. |
| // |
| // Regardless of the platform, the |buffer| is always in UTF-8 encoding. |
| // If |length| is less than the returned length, or |buffer| is NULL, |buffer| |
| // will not be modified. |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFTextObj_GetFontName(FPDF_PAGEOBJECT text, |
| void* buffer, |
| unsigned long length); |
| |
| // Experimental API. |
| // Get the text of a text object. |
| // |
| // text_object - the handle to the text object. |
| // text_page - the handle to the text page. |
| // buffer - the address of a buffer that receives the text. |
| // length - the size, in bytes, of |buffer|. |
| // |
| // Returns the number of bytes in the text (including the trailing NUL |
| // character) on success, 0 on error. |
| // |
| // Regardless of the platform, the |buffer| is always in UTF-16LE encoding. |
| // If |length| is less than the returned length, or |buffer| is NULL, |buffer| |
| // will not be modified. |
| FPDF_EXPORT unsigned long FPDF_CALLCONV |
| FPDFTextObj_GetText(FPDF_PAGEOBJECT text_object, |
| FPDF_TEXTPAGE text_page, |
| void* buffer, |
| unsigned long length); |
| |
| // Experimental API. |
| // Get number of page objects inside |form_object|. |
| // |
| // form_object - handle to a form object. |
| // |
| // Returns the number of objects in |form_object| on success, -1 on error. |
| FPDF_EXPORT int FPDF_CALLCONV |
| FPDFFormObj_CountObjects(FPDF_PAGEOBJECT form_object); |
| |
| // Experimental API. |
| // Get page object in |form_object| at |index|. |
| // |
| // form_object - handle to a form object. |
| // index - the 0-based index of a page object. |
| // |
| // Returns the handle to the page object, or NULL on error. |
| FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV |
| FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index); |
| |
| // Experimental API. |
| // Get the transform matrix of a form object. |
| // |
| // form_object - handle to a form. |
| // matrix - pointer to struct to receive the matrix value. |
| // |
| // The matrix is composed as: |
| // |a c e| |
| // |b d f| |
| // and used to scale, rotate, shear and translate the form object. |
| // |
| // Returns TRUE on success. |
| FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV |
| FPDFFormObj_GetMatrix(FPDF_PAGEOBJECT form_object, FS_MATRIX* matrix); |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif // __cplusplus |
| |
| #endif // PUBLIC_FPDF_EDIT_H_ |