blob: 3b2d12d4b32a1924e0b7d74d5a60c2069cd57d6d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
#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 */
|