/* Main method convert image */
int main() {
wkhtmltoimage_global_settings * gs;
wkhtmltoimage_converter * c;
const unsigned char * data;
long len;
/* Init wkhtmltoimage in graphics less mode */
wkhtmltoimage_init(false);
/*
* Create a global settings object used to store options that are not
* related to input objects, note that control of this object is parsed to
* the converter later, which is then responsible for freeing it
*/
gs = wkhtmltoimage_create_global_settings();
/* We want to convert to convert the qstring documentation page */
wkhtmltoimage_set_global_setting(gs, "in", "http://www.google.com/");
wkhtmltoimage_set_global_setting(gs, "fmt", "jpeg");
/* Create the actual converter object used to convert the pages */
c = wkhtmltoimage_create_converter(gs, NULL);
/* Call the progress_changed function when progress changes */
wkhtmltoimage_set_progress_changed_callback(c, progress_changed);
/* Call the phase _changed function when the phase changes */
wkhtmltoimage_set_phase_changed_callback(c, phase_changed);
/* Call the error function when an error occures */
wkhtmltoimage_set_error_callback(c, error);
/* Call the waring function when a warning is issued */
wkhtmltoimage_set_warning_callback(c, warning);
/* Perform the actual convertion */
if (!wkhtmltoimage_convert(c))
fprintf(stderr, "Convertion failed!");
/* Output possible http error code encountered */
printf("httpErrorCode: %d\n", wkhtmltoimage_http_error_code(c));
len = wkhtmltoimage_get_output(c, &data);
printf("%ld len\n", len);
/* Destroy the converter object since we are done with it */
wkhtmltoimage_destroy_converter(c);
/* We will no longer be needing wkhtmltoimage funcionality */
wkhtmltoimage_deinit();
return 0;
}
VALUE wkhtml_toimage_converter_get_output(VALUE self) {
wkhtmltoimage_converter* converter;
const unsigned char* data_cstr;
long length;
VALUE data;
Data_Get_Struct(self, wkhtmltoimage_converter, converter);
length = wkhtmltoimage_get_output(converter, &data_cstr);
data = rb_str_new((char*)data_cstr, length);
rb_enc_associate(data, rb_ascii8bit_encoding());
return data;
}
