win32api_filehommia

/* FOPEN.C: This program opens files named "data"
* and "data2".It uses fclose to close "data" and
* _fcloseall to close all remaining files.
*/

#include

FILE *stream, *stream2;

void main( void )
{
int numclosed;

/* Open for read (will fail if file "data" does not exist) */
if( (stream = fopen( "data", "r" )) == NULL )
printf( "The file 'data' was not opened
" );
else
printf( "The file 'data' was opened
" );

/* Open for write */
if( (stream2 = fopen( "data2", "w+" )) == NULL )
printf( "The file 'data2' was not opened
" );
else
printf( "The file 'data2' was opened
" );

/* Close stream */
if( fclose( stream ) )
printf( "The file 'data' was not closed
" );

/* All other files are closed: */
numclosed = _fcloseall( );
printf( "Number of files closed by _fcloseall: %u
", numclosed );
}

Otsikon mukaisesti halunnet käyttää 32 bittisen windowsin apia eli jotain tämmöistä:

HANDLE hFile = CreateFile(strFileName.c_str(),
GENERIC_WRITE,
FILE_SHARE_WRITE,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);

if (hFile == INVALID_HANDLE_VALUE)
{}

DWORD dwWritten = 0;
if (!WriteFile (hFile,
GetDoc().c_str(), // TODO: kirjoitettava stringi
GetDoc().length(),// TODO: stringin pituus
&dwWritten,
NULL) || dwWritten != GetDoc().length())
{}

CloseHandle(hFile);