Windows Directory

[SmileeTiger]

I am trying to get info on where the windows directory is stored using the getwindowsdirectory system call however for some reason the call crashes my program any idea what's wring with this piece of code?


Cory
#include "stdafx.h"
#include <windows.h>
#include <stdio.h>
#include &quot;SystemInfo.h&quot;

typedef BOOL (WINAPI *P_GDFSE)(LPCTSTR, PULARGE_INTEGER,
PULARGE_INTEGER, PULARGE_INTEGER); //For GetDiskInfo

void main (int argc, char **argv)
{
LPTSTR lpBuffer;
UINT uSize=256;
UINT tmp;
tmp = GetWindowsDirectory(
lpBuffer, // buffer for Windows directory
uSize // size of directory buffer
);
}

 

[TGM]

Hi

The first parameter of the function is the address of the buffer that will store the directory. So, pass the pointer of an actual buffer. Microsoft advices to use a buffer of at least MAX_PATH.

Here is the code:

char szBuffer[MAX_PATH];

if ( GetWindowsDirectory( szBuffer, MAX_PATH))
AfxMessageBox( szBuffer);

HTH

Thierry
EMail: Thierry.Marneffe@swing.be

 

[ZakiMaksyutov]

Because you must allocate memory for buffer:

LPTSTR lpBuf = new TCHAR[MAX_PATH];
::GetWindowsDirectory(lpBuf, MAX_PATH);

// use lpBuf.

delete []lpBuf;