SHInvokePrinterCommand 開啟印表機

 

#include <WinSpool.h>#pragma comment(lib, "Winspool.lib")#include <shellapi.h>#pragma comment(lib, "shell32.lib")BOOL OpenDefaultPrinter(){  BOOL bRet = FALSE;  DWORD dwSize = 0;  if(!GetDefaultPrinter(NULL, &dwSize)     && GetLastError()==ERROR_INSUFFICIENT_BUFFER)  {    TCHAR *szPrinter = new TCHAR[dwSize+1];    if(GetDefaultPrinter(szPrinter, &dwSize))    {      if(SHInvokePrinterCommand(        NULL, //GetSafeHwnd(),         PRINTACTION_OPEN,        szPrinter,        NULL,        FALSE))      {        bRet = TRUE;      }    }    delete []szPrinter;  }  return bRet;}