extend-c-api.h
736 Bytes
#ifndef EXAMPLE_C_EXTEND_H
#define EXAMPLE_C_EXTEND_H
/*
* This is an example of how to write C++ functions and make them usable with the qpdf C API. It
* consists of three files:
* - extend-c-api.h -- a plain C header file
* - extend-c-api.c -- a C program that calls the function
* - extend-c-api.cc -- a C++ file that implements the function
*/
#include <qpdf/qpdf-c.h>
/* Declare your custom function to return QPDF_ERROR_CODE and take qpdf_data and anything else you
* need. Any errors are retrievable through the qpdf C APIs normal error-handling mechanism.
*/
#ifdef __cplusplus
extern "C" {
#endif
QPDF_ERROR_CODE num_pages(qpdf_data qc, int* npages);
#ifdef __cplusplus
}
#endif
#endif /* EXAMPLE_C_EXTEND_H */