[Solved] undefined reference to `RasDialDlgW@16'

MrOplus

hi ,
i'm trying to execute some RAS commands in Windows everything works fine in QT Creator but when i want to compile the app this error occurs :

undefined reference to `RasDialDlgW@16'

Headers :

#include <windows.h>
#include <stdio.h>
#include <ras.h>
#include <rasdlg.h>
#include <tchar.h>

here is my code :

QString src = QCoreApplication::applicationDirPath() + "/ras.pbk";
  LPTSTR dest=(LPTSTR)src.utf16();
  LPTSTR addr=(LPTSTR)QString("127.0.0.1").utf16();
  LPTSTR entry=(LPTSTR)QString("RasEntry").utf16();
// LPRASDIALDLG lpInfo = (LPRASDIALDLG) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(RASDIALDLG));
  RasDialDlg(dest, entry, addr, NULL);

I'm Using QT 5.7.1 Mingw on windows 10

kshegunov

You need to link whatever library provides RasDialDlgW (I'm assuming one of the windows system libs).
As a side note, this code can't work as you're returning pointers from temporary objects, you'll get segfault in these two places:

LPTSTR addr=(LPTSTR)QString("127.0.0.1").utf16(); //< The pointer returned from utf16 is valid as long as the string is not modified
LPTSTR entry=(LPTSTR)QString("RasEntry").utf16();

MrOplus

@kshegunov in msdn sample it just used these headers : ras , rasdlg , windows , tchar

mrjj

@MrOplus
Hi
you must also link to
Rasdlg.dll/lib ( if vs)
https://technet.microsoft.com/nl-nl/aa377020

VRonin

in your .pro file add
LIBS += -lRasdlg

MrOplus

@VRonin it works , thanks