pdflib输出中文pdf

pdflib版本：PDFlib-Lite-7.0.5p3

http://www.pdflib.com/download/free-software/pdflib-lite-7/

开发环境：VC++6.0

中文demo：

/* 

 * PDFlib client: hello example in C

	PDFlib-Lite-7.0.5p3

 */

#include 
#include 

#include "pdflib.h"

int main(void)
{
    PDF *p;
    int font;
	int font_ch;

    /* create a new PDFlib object */
    if ((p = PDF_new()) == (PDF *) 0)
    {
        printf("Couldn't create PDFlib object (out of memory)!\n");
        return(2);
    }

    PDF_TRY(p) {
		/* This means we must check return values of load_font() etc. */
		PDF_set_parameter(p, "errorpolicy", "return");
		PDF_set_parameter(p, "hypertextencoding", "host");			//--(增加位置)

		if (PDF_begin_document(p, "hello.pdf", 0, "") == -1) {
			printf("Error: %s\n", PDF_get_errmsg(p));
			return(2);
		}

		/* This line is required to avoid problems on Japanese systems */
		//PDF_set_parameter(p, "hypertextencoding", "host");		//--(注释位置)

		PDF_set_info(p, "Creator", "hello.c");
		PDF_set_info(p, "Author", "Thomas Merz");
		PDF_set_info(p, "Title", "Hello, world (C)!");

		PDF_begin_page_ext(p, a4_width, a4_height, "");

		/* Change "host" encoding to "winansi" or whatever you need! */
		font = PDF_load_font(p, "Helvetica-Bold", 0, "host", "");
		if (font == -1) {
			printf("Error: %s\n", PDF_get_errmsg(p));
			PDF_delete(p);
			return(2);
		}

		font_ch = PDF_load_font(p, "STSong-Light", 0, "GB-EUC-H", "");
		if (font == -1) {
			printf("Error: %s\n", PDF_get_errmsg(p));
			PDF_delete(p);
			return 0;
		}

		//=====================================
		PDF_save(p);
		PDF_setfont(p, font, 24);
		PDF_set_text_pos(p, 50, 700);
		PDF_show(p, "Hello, world!");

		PDF_setfont(p, font_ch, 24);
		PDF_continue_text(p, "您好，世界!");
		PDF_restore(p);
		//====================================

		PDF_end_page_ext(p, "");

		PDF_end_document(p, "");
    }

    PDF_CATCH(p) {
        printf("PDFlib exception occurred in hello sample:\n");
        printf("[%d] %s: %s\n",
	    PDF_get_errnum(p), PDF_get_apiname(p), PDF_get_errmsg(p));
        PDF_delete(p);
        return(2);
    }

    PDF_delete(p);

    return 0;
}