用BCB 画 Code128 B模式条码

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include <string>
#include <vector>
#include <map>
#include <Graphics.hpp>
using namespace std;
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------

map<int,AnsiString> g_codemap;

bool FillCodeMap(void)
{
    if(!g_codemap.empty())
    return true;

    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
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    g_codemap[]="";
    g_codemap[]="";
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    g_codemap[]="";
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    g_codemap[]="";
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    g_codemap[]="";
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    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";
    g_codemap[]="";

    return true;
}

AnsiString Get128CodeString(AnsiString inputData)
{

    int checksum = ;
    char* arry = inputData.c_str();
    for (int  i =  ; i < inputData.Length() ;i++)
    {

        char a = *(arry + i);
        if (a +  >=)
        {
            checksum += (a - ) * (i + );
        }
        else
        {
            checksum += (a + ) * (i + );
        }
    }

    checksum = checksum % ;
    if (checksum < )
    {
        checksum += ;
    }
    else
    {
        checksum += ;
    }

    vector<int> nV;

    nV.push_back();
    for (int i =  ; i < inputData.Length() ;i++)
    {
        char *p =  inputData.c_str() + i;
        nV.push_back(*p);
    }

    nV.push_back(checksum);
    nV.push_back();
    FillCodeMap();

    AnsiString reuslt = "";
    for (int i = ; i < nV.size() ;i++)
    {
        reuslt += g_codemap[ nV[i] ];
    }
    return reuslt;

}
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
    AnsiString text = "A012345678901234567";
    text = Get128CodeString(text);

    Graphics::TBitmap* bitmap = new Graphics::TBitmap();
    bitmap->Height = ;
    int width = ;
    for (int i = ; i < text.Length() ;i++)
    {
        bitmap->Width += width;
        char a = *(text.c_str() + i);
        bitmap->Canvas->Pen->Width = width;
        if (a == '')
        {
            bitmap->Canvas->Pen->Color = clWhite;
        }
        else if (a == '')
        {
            bitmap->Canvas->Pen->Color = clBlack;
        }

         bitmap->Canvas->MoveTo(i*width,);
         bitmap->Canvas->LineTo(i*width,bitmap->Height);
    }
    bitmap->SaveToFile("1.bmp");
    Image1->Picture->Bitmap->Assign(bitmap);
    delete bitmap;
}
//---------------------------------------------------------------------------

效果，可以用手机二维码扫描试试是什么内容。

参考地址：https://bbs.csdn.net/topics/350125614