| // Copyright 2020 The PDFium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // No-frills example of how to initialize and call into a PDFium environment, |
| // from C. The PDFium API is compatible with C (the C++ internals are hidden |
| // beneath it). |
| |
| #include <string.h> |
| |
| #include "public/fpdf_edit.h" |
| #include "public/fpdf_formfill.h" |
| #include "public/fpdfview.h" |
| |
| int main(int argc, const char* argv[]) { |
| // The PDF library must be initialized before creating a document. |
| FPDF_LIBRARY_CONFIG config; |
| memset(&config, 0, sizeof(config)); |
| config.version = 3; |
| FPDF_InitLibraryWithConfig(&config); |
| |
| // The document must be created before creating a form-fill environment. |
| // Typically use FPDF_LoadDocument() for pre-existing documents. Here, we |
| // create a new blank document for simplicity. |
| FPDF_DOCUMENT doc = FPDF_CreateNewDocument(); |
| |
| FPDF_FORMFILLINFO formfillinfo; |
| memset(&formfillinfo, 0, sizeof(formfillinfo)); |
| formfillinfo.version = 1; |
| |
| FPDF_FORMHANDLE form_handle = |
| FPDFDOC_InitFormFillEnvironment(doc, &formfillinfo); |
| |
| // Typically use FPDF_LoadPage() for pre-existing pages. Here, we |
| // create a new blank page for simplicity. |
| FPDF_PAGE page = FPDFPage_New(doc, 0, 640.0, 480.0); |
| FORM_OnAfterLoadPage(page, form_handle); |
| FORM_DoPageAAction(page, form_handle, FPDFPAGE_AACTION_OPEN); |
| |
| // Do actual work with the page here. |
| |
| FORM_DoPageAAction(page, form_handle, FPDFPAGE_AACTION_CLOSE); |
| FORM_OnBeforeClosePage(page, form_handle); |
| FPDF_ClosePage(page); |
| |
| FORM_DoDocumentAAction(form_handle, FPDFDOC_AACTION_WC); |
| FPDFDOC_ExitFormFillEnvironment(form_handle); |
| FPDF_CloseDocument(doc); |
| FPDF_DestroyLibrary(); |
| |
| return 0; |
| } |