C / C++ / MFC

subramanyeswari wrote:

I used fwrite and fread but it is not working.

char strPasswd[8] = "test123";
			DWORD dlen = 8;
			size_t t ;
			long lSize;
			
			size_t result;
			BYTE*  Newpasswd;

			FILE *fp = fopen("c:\\test.bin", "wb+");
			BYTE*  encodedpasswd = EncodeString(strPasswd,&dlen);
			t = fwrite((unsigned char*)encodedpasswd,1,sizeof((unsigned char*)encodedpasswd),fp);
			fclose(fp);
			fp = fopen("c:\\test.bin", "rb+");
			fseek (fp , 0 , SEEK_END);
			lSize = ftell (fp);
			rewind (fp);
			Newpasswd= (unsigned char*) malloc (sizeof(unsigned char)*lSize);
			int i = fread(Newpasswd,1,sizeof(Newpasswd),fp);//Newpasswd is not the same as encodedpasswd 
			char* tempPassword = DecodeString(testpasswd,&dlen);// here tempPassword is junk

subramanyeswari wrote:

I used fwrite and fread but it is not working.

int main()
{  
  {
    BYTE bValue[]={2,4,8};
    // Length of the array
    int iLen = sizeof(bValue)/sizeof(bValue[0]);
    // WRITE array
    // open file for output  in binary mode
    FILE * fpo = fopen("foo.bin", "wb");
    // store array length
    fwrite(&iLen, sizeof(iLen), 1,fpo);
    // store array elements
    fwrite(bValue, sizeof(bValue), 1, fpo);
    fclose(fpo);
  }

  {
    BYTE * bValue;
    // READ array
    // open file for input in binary mode
    FILE * fpi = fopen("foo.bin", "rb");
    int iLen;
    // read array length
    fread(&iLen, sizeof(iLen), 1,fpi);
    // read array elements
    bValue = new BYTE[iLen];
    fread(bValue, sizeof(BYTE), iLen, fpi);
    fclose(fpi);
    // use values
    // ...
    //Cleanup
    delete [] bValue;
  }
  return 0;
}

BOOL bEnable = FALSE;    // To disable. Set to true for enabling

UINT menuf = bEnable ? (MF_BYCOMMAND) : (MF_BYCOMMAND | MF_GRAYED | MF_DISABLED);

CMenu* pSM = GetSystemMenu(FALSE);
if(pSM)
{
  pSM->EnableMenuItem(SC_CLOSE, menuf);
}

Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_

prithaa wrote:

But I aam using 2 DLLs and How should I debug starting from my client project?

CWnd* PASCAL CWnd::FromHandle(HWND hWnd)
{
	CHandleMap* pMap = afxMapHWND(TRUE); //create map if not exist
	ASSERT(pMap != NULL);
	CWnd* pWnd = (CWnd*)pMap->FromHandle(hWnd);

#ifndef _AFX_NO_OCC_SUPPORT
	pWnd->AttachControlSite(pMap);
#endif

	ASSERT(pWnd == NULL || pWnd->m_hWnd == hWnd);
	return pWnd;
}