开放一个VC打印机接口,这接口比较简略.

开放一个VC打印机接口,这接口比较容易..

C/C++ code

//定义一个打印作业 DOCINFO ENPrinterA9::di={sizeof(DOCINFO),"printer",NULL};ENPrinterA9::ENPrinterA9(HWND hwnd,LPDIRECT3DDEVICE9 pd3dDevice,ENd3d *d3dOb){    memset(this,0x00,sizeof(ENPrinterA9));    hWnd=hwnd;    m_pd3dDevice=pd3dDevice;     // Direct3D设备指针(下级)    ENd3dOb=d3dOb;    }void ENPrinterA9::ENPrinterA9Ini(){    int i=0;        // 得到设备字符串存入数组szprinter中     GetProfileString("windows","device",",,,",szprinter,200);         // 将设备字符串分解     if(NULL!=(szDevice=strtok(szprinter,",")) &&        NULL!=(szDriver=strtok(NULL,",")) &&        NULL!=(szOutput=strtok(NULL,",")))     {        // 创建一个打印机设备句柄         if((hdcprint=CreateDC(szDriver,szDevice,szOutput,NULL))!=0)         {                 }        else        {            MessageBox(hWnd, "没有默认打印机,或者没有安装打印机",                "FREE_OK", MB_OK);        }            }    else    {        cout<<"没有检测到打印机"<<endl;    }    }void ENPrinterA9::ENPrinterA9Free(){//    if(hdcprint)//    {        RestoreDC(hdcprint,-1); //恢复打印机设备句柄         EndDoc(hdcprint); //结束一个打印作业         // 用API函数DeleteDC销毁一个打印机设备句柄         DeleteDC(hdcprint); //    }//    delete szDriver;//    delete szDevice;//    delete szOutput;}void ENPrinterA9::PrinterData(int posx,int height,char *data){    //设置开始打印    StartDoc(hdcprint,&di);    int i,j,k;    StartPage(hdcprint); //打印机走纸,开始打印     SaveDC(hdcprint); //保存打印机设备句柄       int len=strlen(data);            TextOut(hdcprint,posx,height,data,len);    RestoreDC(hdcprint,-1); //恢复打印机设备句柄     EndDoc(hdcprint); //结束一个打印作业     EndPage(hdcprint); //打印机停纸,停止打印 }