做Win2000的虚拟打印机.....

怎么使用AddPrinterDriver添加驱动？我的程序如下：
DRIVER_INFO_3 di3;
char *lpBuffer=new char[MAX_PATH];
char *lpDriverPath=new char[MAX_PATH];
char *lpDataFilePath=new char[MAX_PATH];
char *lpConfigFilePath=new char[MAX_PATH];
char *lpDependecy=new char[MAX_PATH];
DWORD uSize;

GetPrinterDriverDirectory(NULL,\"Windows NT x86\",1,(LPBYTE)lpBuffer,150,&uSize);

lstrcpy(_TEXT(lpDriverPath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDriverPath),_TEXT(\"\\\\vprinter.dll\"));

lstrcpy(_TEXT(lpDataFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDataFilePath),_TEXT(\"\\\\vprinter.GPD\"));

lstrcpy(_TEXT(lpConfigFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpConfigFilePath),_TEXT(\"\\\\vprinter.inf\"));

lstrcat(lpDependecy,_TEXT(\"stdnames.gpd\\0vprinter.dll\\0vprinter.GPD\\0vprinter.inf\\0\\0\"));

ZeroMemory(&di3, sizeof(DRIVER_INFO_3));
di3.cVersion = 3;
di3.pName =_TEXT(\"Virtual Printer\");//HP LaserJet III di3.pEnvironment = Environment;
di3.pEnvironment =_TEXT(\"Windows NT x86\");
di3.pDriverPath = lpDriverPath;
di3.pDataFile =lpDataFilePath;
di3.pConfigFile =lpConfigFilePath;
di3.pDependentFiles = lpDependecy;
di3.pHelpFile = NULL;
di3.pMonitorName = NULL;
di3.pDefaultDataType = _TEXT(\"RAW\");
AddPrinterDriver(NULL, 3, (LPBYTE)&di3);

运行没有结果，还望大家帮帮忙，谢谢了！

Pointer to a null-terminated string that specifies the files the driver depends on. Each file name in the string is also terminated with a null (for example, Pscript.dll\\0Qms810.PPD\\0Pscrptui.dll\\0Pspcriptui.hlp\\0Pstest.txt\\0\\0). MSDN说这些字符串要紧凑的存储在内存里，每个文件都要用结束符来隔开，解决这个问题可以用下面的代码：
char *q = lpDependecy;
lstrcpy(q, _T("file1.dll"));
q += lstrlen(_T("file1.dll"))+1;

lstrcpy(q, _T("file2.gpd"));
q += lstrlen(_T("file2.gpd"))+1;

lstrcpy(q, _T("file3.ini"));
q += lstrlen(_T("file3.ini"))+1;

lstrcpy(q, _T("file4.dll"));
q += lstrlen(_T("file4.dll"))+1;

lstrcpy(q, _T("file5.inf"));
q += lstrlen(_T("file5.inf"))+1;
不过头疼的是，就算是这样，打印机还是不可以加上。不知道哪位高手可以赐教。我xp下的代码如下：请高手指点
PRINTER_INFO_2 pi2;
DRIVER_INFO_3 di3;
HANDLE hPrinter;

char* Environment=_TEXT("Windows NT x86");
char lpBuffer[MAX_PATH];

char lpDriverPath[MAX_PATH];
char lpDataFilePath[MAX_PATH];
char lpConfigFilePath[MAX_PATH];
char lpHelpFilePath[MAX_PATH];
char lpDependecy[MAX_PATH];

DWORD uSize=0;
CString str;
DWORD dwErr;
BOOL b;
char buffer[1024];

if (OpenPrinter("DRoad USB Printer",&hPrinter,NULL))
{
DeletePrinter(hPrinter);
ClosePrinter(hPrinter);
}
DeletePrinterDriver(NULL,"Windows NT x86","DRoad USB Printer");


GetPrinterDriverDirectory(NULL,Environment,1,(LPBYTE)lpBuffer,MAX_PATH,&uSize);
str.Format("lpBuffer is %s\\n",lpBuffer);
AfxMessageBox(str);

lstrcpy(_TEXT(lpDriverPath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDriverPath),_TEXT("\\\\UNIDRV.DLL"));

lstrcpy(_TEXT(lpDataFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpDataFilePath),_TEXT("\\\\Dragon.GPD"));

lstrcpy(_TEXT(lpConfigFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpConfigFilePath),_TEXT("\\\\UNIDRVUI.DLL"));

lstrcpy(_TEXT(lpHelpFilePath),_TEXT(lpBuffer));
lstrcat(_TEXT(lpHelpFilePath),_TEXT("\\\\UNIDRV.HLP"));

memset(lpDependecy,0,sizeof(lpDependecy));
lstrcat(lpDependecy,_TEXT("Unires.dll\\0Stdname.gpd\\0Dragon.ini\\0Dragon.dll\\0Dragon.inf\\0\\0"));

char *q = lpDependecy;
lstrcpy(q, _T("Unires.dll"));
q += lstrlen(_T("Unires.dll"))+1;

lstrcpy(q, _T("Stdname.gpd"));
q += lstrlen(_T("Stdname.gpd"))+1;

lstrcpy(q, _T("Dragon.ini"));
q += lstrlen(_T("Dragon.ini"))+1;

lstrcpy(q, _T("Dragon.dll"));
q += lstrlen(_T("Dragon.dll"))+1;

lstrcpy(q, _T("Dragon.inf"));
q += lstrlen(_T("Dragon.inf"))+1;

ZeroMemory(&di3, sizeof(DRIVER_INFO_3));
di3.cVersion = 0x03;
di3.pName =_TEXT("DRoad USB Printer");
di3.pEnvironment = Environment;
di3.pDriverPath = lpDriverPath;
di3.pDataFile =lpDataFilePath;
di3.pConfigFile =lpConfigFilePath;
di3.pDependentFiles = lpDependecy;
di3.pHelpFile = lpHelpFilePath;
di3.pMonitorName = NULL;
di3.pDefaultDataType = _TEXT("RAW");

SetLastError(0);
if (!AddPrinterDriver(NULL, 3, (LPBYTE)&di3))
{
dwErr = GetLastError();
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwErr,NULL,buffer,sizeof(buffer),NULL);
MessageBox(buffer);
}

ZeroMemory(&pi2, sizeof(PRINTER_INFO_2));
pi2.pServerName=NULL;
pi2.pPrinterName = _TEXT("DRoad USB Printer");
pi2.pPortName = _TEXT("USB001");
pi2.pDriverName = _TEXT("DRoad USB Printer"); pi2.pPrintProcessor = _TEXT("WinPrint");
pi2.pDatatype = _TEXT("RAW");
pi2.AveragePPM = 18;

SetLastError(0);
if ((hPrinter = AddPrinter(NULL, 2, (LPBYTE)&pi2))==NULL)
{
dwErr = GetLastError();
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM,NULL,dwErr, NULL,buffer,sizeof(buffer),NULL);
MessageBox(buffer);
}

ClosePrinter(hPrinter);
头疼的还有，运行时addprinterdriver经常失败，GetLastError返回2，说系统找不到指定的文件。而如果在运行addprinterdriver之前用手工或用installshield把所有有关于驱动的文件都拷贝到GetPrinterDriverDirectory返回的目录下而且要拷贝到3的目录下，那么就不会出现这个问题了。可是addprinter成功后。这时去看打印机是否安装上了，很高兴的是安装上了，不过头疼的还有一个问题就是，当我把打印机再次插拔时，系统又提示说找到一个硬件，然后弹出硬件安装向导。这说明我的打印机根本没有安装成功。我的打印机是usb接口的。不知道还要在注册表里写些什么东东，请高手赐教指点，谢谢了！斑竹呀，这里有很多这方面的讨论，可惜没有一个是完全的，所以很多人碰到这些问题时，没有一个是可以解决的。能否整理一下这方面的知识点呢，或把代码发放出来，我相信有很多人都会感谢你的！！！