vc制作条形码

开发环境：VC++6.0

PDF开发包：PDFlib-Lite-7.0.5

开发demo：

/*  * PDFlib client: hello example in C * pdflib-BarCode */#include <stdio.h>#include <stdlib.h>#include <String.h>#include "pdflib.h"#include "Code39.h"FILE *fp;void drawTable(PDF *p, double x0, double y0, double height, double width);void addText(PDF *p, double x0, double y0, char *barCode);int main(void){    PDF *p;    int font;double startX,startY;double pageEdgeX,pageEdgeY;double tableEdgeX,tableEdgeY;double tableHeight, tableWidth;    /* 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);}PDF_save(p);//#define a4_width 595.0//#define a4_height 842.0//左下角为(0,0)//x横向，y纵向pageEdgeX = 20;pageEdgeY = 20;tableEdgeX = 10;tableEdgeY = 20;tableHeight = 30;tableWidth = 180;fp = fopen("out.txt", "w");if(!fp){printf("file errpr!\n");return -1;}startX = pageEdgeX;startY = a4_height-pageEdgeY;drawTable(p, startX, startY, tableHeight, tableWidth);addText(p, startX, startY, "SN301");drawTable(p, startX, startY-(tableEdgeX+tableHeight), tableHeight, tableWidth);addText(p, startX, startY-(tableEdgeX+tableHeight), "SN302");drawTable(p, startX, startY-2*(tableEdgeX+tableHeight), tableHeight, tableWidth);addText(p, startX, startY-2*(tableEdgeX+tableHeight), "SN303");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;}void drawTable(PDF *p, double x0, double y0, double height, double width){PDF_setcolor(p, "fillstroke", "rgb", 0, 0, 0, 0);PDF_setlinewidth(p, 0.1);//横向PDF_moveto(p, x0, y0);PDF_lineto(p, x0+width, y0);PDF_stroke(p);PDF_moveto(p, x0, y0-height);PDF_lineto(p, x0+width, y0-height);PDF_stroke(p);//竖向PDF_moveto(p, x0, y0);PDF_lineto(p, x0, y0-height);PDF_stroke(p);PDF_moveto(p, x0+50, y0);PDF_lineto(p, x0+50, y0-height);PDF_stroke(p);PDF_moveto(p, x0+width, y0);PDF_lineto(p, x0+width, y0-height);PDF_stroke(p);}void addText(PDF *p,  double x0, double y0, char *barCode){int font, font_ch;double posX,posY;font = PDF_load_font(p, "Helvetica", 0, "host", "");if (font == -1) {printf("Error: %s\n", PDF_get_errmsg(p));PDF_delete(p);return;}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;}///*posX = x0;posY = y0;PDF_save(p);PDF_setfont(p, font_ch, 12);PDF_set_text_pos(p, posX+5, posY-20);PDF_show(p, "条形码");PDF_restore(p);//条码char *text = barCode;if(Code39Verify(text)==-1){printf("involid char\n");return;}char partial[1024]="";if(Code39Encode(text, partial)==-1){printf("code error\n");return;}fwrite(partial, strlen(partial), 1, fp);fwrite("\r\n", strlen("\r\n"), 1, fp);double codeWid = 0.8;double codeHig = 10;char *str = partial;posX = x0+60;posY = y0-5;PDF_setcolor(p, "fillstroke", "rgb", 0, 0, 0, 0);PDF_setlinewidth(p, codeWid);PDF_save(p);while(*str){for(int i=0; i<(*str-'0'); i++){PDF_moveto(p, posX, posY);PDF_lineto(p, posX, posY-codeHig);posX += codeWid;PDF_stroke(p);}str++;posX += codeWid*(*str-'0');str++; }PDF_restore(p);//条码字符posX = x0;posY = y0-10;PDF_save(p);PDF_setfont(p, font, 8);PDF_set_text_pos(p, posX+60, posY-15);PDF_show(p, barCode);PDF_restore(p);}

// Code39.h: interface for the CCode39 class.//////////////////////////////////////////////////////////////////////////Code39编码static char *code39set[]={"111221211",//0"211211112",//1"112211112",//2"212211111",//3"111221112",//4"211221111",//5"112221111",//6"111211212",//7"211211211",//8"112211211",//9"211112112",//A"112112112",//B"212112111",//C"111122112",//D"211122111",//E"112122111",//F"111112212",//G"211112211",//H"112112211",//I"111122211",//J"211111122",//K"112111122",//L"212111121",//M"111121122",//N"211121121",//O"112121121",//P"111111222",//Q"211111221",//R"112111221",//S"111121221",//T"221111112",//U"122111112",//V"222111111",//W"121121112",//X"221121111",//Y"122121111",//Z"121111212",//-"221111211",//."122111211",//Space"121212111",//$"121211121",///"121112121",//+"111212121",//%"121121211",//*};int Code39Encode(char* text, char* partial);int Code39Verify(char* text);

// Code39.cpp: implementation of the CCode39 class.////////////////////////////////////////////////////////////////////////#include <String.h>#include "Code39.h"//////////////////////////////////////////////////////////////////////// Construction/Destruction//////////////////////////////////////////////////////////////////////Code39Verify(char* text){if(text[0]=='\0')return -1;while(*text&&((*text>='A'&&*text<='Z')||(*text>='0'&&*text<='9')||(*text=='-')||(*text=='.')||(*text=='$')||(*text==' ')||(*text=='/')||(*text=='+')||(*text=='%')||(*text=='*')))text++;if(*text)return -1;return 0;//OK}int Code39Encode(char* text, char* partial){unsigned i;char *str = text;if(!partial){return -1;}//首字符为*strcat(partial,code39set[43]);strcat(partial,"2");//如果字符串为空，则返回if(!(*text)){return -1;}for(i=0;i<strlen(text);i++){if((*str>='A') && (*str<='Z'))strcat(partial,code39set[*str-'A'+10]);else if((*str>='0') && (*str<='9'))strcat(partial,code39set[*str-'0']);else if(*str=='-')strcat(partial,code39set[36]);else if(*str=='.')strcat(partial,code39set[37]);else if(*str==' ')strcat(partial,code39set[38]);else if(*str=='$')strcat(partial,code39set[39]);else if(*str=='/')strcat(partial,code39set[40]);else if(*str=='+')strcat(partial,code39set[41]);else if(*str=='%')strcat(partial,code39set[42]);else if(*str=='*')strcat(partial,code39set[43]);else{return -1;}str++;//每两个字符之间加一个白线strcat(partial,"2");}//结束符为*strcat(partial,code39set[43]);return 0;}

VC工程下载：http://download.csdn.net/detail/zhuyonghao123/7539803