#include "../pch/pch.h" #include "CPosPrinter.h" #include #include CPosPrinter::CPosPrinter() { Init(); } CPosPrinter::~CPosPrinter() { } bool CPosPrinter::Init() { //遍历USB设备,找到POS打印机路径 //设备路径 TCHAR * szDevicePath[MAX_DEVICE]; //设置中文字符 setlocale(LC_CTYPE, "chs"); TCHAR* Port = NULL; //分配需要的空间 for(int i = 0; i < MAX_DEVICE; i++) { szDevicePath[i] = new TCHAR[256]; } //取设备路径 int nDevice = GetDevicePath((LPGUID)&USB_GUID, szDevicePath); int i = 0; while(i < nDevice) { Port = szDevicePath[i++]; LOG_INFO("device.Port = " << Port); } m_hPort = CreateFile(Port, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); if(m_hPort == INVALID_HANDLE_VALUE) { // 打开端口失败 return false; } return true; } void CPosPrinter::PrintWaimaiOrder(CWaimaiOrder& order) { POS_Reset(); POS_SetMotionUnit(180, 180); string shop_name = "#" + order.m_restaurant_number + " " + CLewaimaiString::UTF8ToANSI(order.m_shop_name); POS_S_TextOut(shop_name); POS_FeedLine(); POS_FeedLine(); POS_FeedLine(); POS_CutPaper(); } //////////////////////////////////////////////////////////////////////////////////////////////////////// //获取CreateFile的USB端口号 //////////////////////////////////////////////////////////////////////////////////////////////////////// // 根据GUID获得设备路径 // lpGuid: GUID指针 // pszDevicePath: 设备路径指针的指针,用于返回找到的路径 // 返回: 成功得到的设备路径个数,可能不止1个 int CPosPrinter::GetDevicePath(LPGUID lpGuid, LPTSTR* pszDevicePath) { HDEVINFO hDevInfoSet; SP_DEVINFO_DATA spDevInfoData; SP_DEVICE_INTERFACE_DATA ifData; PSP_DEVICE_INTERFACE_DETAIL_DATA pDetail; int nCount; int nTotle; BOOL bResult; wstring strUSBPrint = TEXT("USB 打印支持"); // 取得一个该GUID相关的设备信息集句柄 hDevInfoSet = ::SetupDiGetClassDevs(lpGuid, // class GUID NULL, // 无关键字 NULL, // 不指定父窗口句柄 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); // 目前存在的设备 // 失败... if(hDevInfoSet == INVALID_HANDLE_VALUE) { printf("failed \r\n"); return 0; } // 申请设备接口数据空间 pDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA)::GlobalAlloc(LMEM_ZEROINIT, INTERFACE_DETAIL_SIZE); pDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); nTotle = -1; nCount = 0; bResult = TRUE; // 设备序号=0,1,2... 逐一测试设备接口,到失败为止 while(bResult) { nTotle++; spDevInfoData.cbSize = sizeof(SP_DEVINFO_DATA); // 枚举符合该GUID的设备接口 bResult = ::SetupDiEnumDeviceInfo( hDevInfoSet, // 设备信息集句柄 (ULONG)nTotle, // 设备信息集里的设备序号 &spDevInfoData); // 设备接口信息 if(bResult) { DWORD DataT; TCHAR buf[MAX_PATH]; DWORD nSize = 0; // get Friendly Name or Device Description if(SetupDiGetDeviceRegistryProperty(hDevInfoSet, &spDevInfoData, SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize)) { } else if(SetupDiGetDeviceRegistryProperty(hDevInfoSet, &spDevInfoData, SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize)) { } else { lstrcpy(buf, _T("Unknown")); } _tprintf(_T("buf = %s \r\n"), buf); //是否是要找的设备类型 if(_tcscmp(buf, strUSBPrint.c_str()) != 0) { continue; } _tprintf(_T("OK\r\n")); ifData.cbSize = sizeof(ifData); // 枚舉符合該GUID的設備接口 bResult = ::SetupDiEnumDeviceInterfaces( hDevInfoSet, // 設備信息集句柄 NULL, // 不需額外的設備描述 lpGuid, // GUID (ULONG)nTotle, // 設備信息集里的設備序號 &ifData); // 設備接口信息 if(bResult) { // 取得该设备接口的细节(设备路径) bResult = SetupDiGetInterfaceDeviceDetail( hDevInfoSet, // 设备信息集句柄 &ifData, // 设备接口信息 pDetail, // 设备接口细节(设备路径) INTERFACE_DETAIL_SIZE, // 输出缓冲区大小 NULL, // 不需计算输出缓冲区大小(直接用设定值) NULL); // 不需额外的设备描述 if(bResult) { // 复制设备路径到输出缓冲区 ::_tcscpy_s(pszDevicePath[nCount], 256, pDetail->DevicePath); // 调整计数值 nCount++; _tprintf(_T("Cnt = %d,pDetail->DevicePath =%s\r\n"), nCount, pDetail->DevicePath); } } } } // 释放设备接口数据空间 ::GlobalFree(pDetail); // 关闭设备信息集句柄 ::SetupDiDestroyDeviceInfoList(hDevInfoSet); return nCount; } int CPosPrinter::WriteData(string meg) { DWORD dwWrite; return WriteFile(m_hPort, meg.c_str(), (DWORD)meg.length(), &dwWrite, NULL); } int CPosPrinter::WriteBuf(char *buf, int len) { DWORD dwWrite; return WriteFile(m_hPort, buf, len, &dwWrite, NULL); } int CPosPrinter::POS_Reset(void) { string s; s = "\x1B\x40"; WriteData(s); return 0; } int CPosPrinter::POS_FeedLine(void) { string s; s = "\x0A"; WriteData(s); return 0; } int CPosPrinter::POS_SetMotionUnit(int x, int y) { string s; s = "\x1D\x50\xB4\xB4"; WriteData(s); s = "\x1B\x53"; WriteData(s); return 0; } int CPosPrinter::POS_S_TextOut(string &abc) { string s; char SetAbsPos[4] = { 0x1B, 0x24, 0x46, 0x00 }; WriteBuf(SetAbsPos, 4); char SelctFontType[3] = { 0x1B, 0x4D, 0x03 }; WriteBuf(SelctFontType, 3); char SelctOutMode[3] = { 0x1D, 0x21, 0x00 }; WriteBuf(SelctOutMode, 3); WriteData(abc); return 0; } int CPosPrinter::POS_CutPaper() { char CutPaperMode[4] = { 0x1D, 0x56, 0x41, 0x00 }; WriteBuf(CutPaperMode, 4); return 0; } int CPosPrinter::POS_OutQRCode() { char QRCode1[8] = { 0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x43, 0x05 }; char QRCode2[16] = { 0x1d, 0x28, 0x6b, 0x0b, 0x00, 0x31, 0x50, 0x30, 0x47, 0x70, 0x72, 0x69, 0x6e, 0x74, 0x65, 0x72 }; char QRCode3[8] = { 0x1d, 0x28, 0x6b, 0x03, 0x00, 0x31, 0x51, 0x30 }; WriteBuf(QRCode1, 8); WriteBuf(QRCode2, 16); WriteBuf(QRCode3, 8); return 0; }