PeterHarding at 06:21, 6 January 2011

2011-01-06T06:21:42Z

← Older revision		Revision as of 16:21, 6 January 2011
Line 140:		Line 140:

	[[Category:Visual Studio]]		[[Category:Visual Studio]]
			[[Category:Windows Development]]

PeterHarding: CReate Unique File Name in Windows moved to Create Unique File Name in Windows: Type

2008-07-21T03:33:02Z

CReate Unique File Name in Windows moved to Create Unique File Name in Windows: Type

← Older revision	Revision as of 13:33, 21 July 2008
(No difference)

PeterHarding: New page: =Example= * See : http://msdn.microsoft.com/en-us/library/aa363875(VS.85).aspx

 #include  #include  #include   #define BUFSIZE 512  int _tmain(int ar...

2008-07-21T03:18:43Z

New page: =Example= * See : http://msdn.microsoft.com/en-us/library/aa363875(VS.85).aspx <pre> #include <windows.h> #include <tchar.h> #include <stdio.h> #define BUFSIZE 512 int _tmain(int ar...

New page

=Example=

* See : http://msdn.microsoft.com/en-us/library/aa363875(VS.85).aspx

<pre>
#include <windows.h>
#include <tchar.h>
#include <stdio.h>

#define BUFSIZE 512

int _tmain(int argc, TCHAR *argv[])
{
HANDLE hFile;
HANDLE hTempFile;
DWORD dwRetVal;
DWORD dwBytesRead;
DWORD dwBytesWritten;
DWORD dwBufSize=BUFSIZE;
UINT uRetVal;
TCHAR szTempName[BUFSIZE];
char buffer[BUFSIZE];
TCHAR lpPathBuffer[BUFSIZE];
BOOL fSuccess;

if(argc != 2)
{
_tprintf(TEXT("Usage: %s <file>\n"), argv[0]);
return -1;
}

// Open the existing file.
hFile = CreateFile(argv[1], // file name
GENERIC_READ, // open for reading
0, // do not share
NULL, // default security
OPEN_EXISTING, // existing file only
FILE_ATTRIBUTE_NORMAL, // normal file
NULL); // no template
if (hFile == INVALID_HANDLE_VALUE)
{
printf ("First CreateFile failed (%d)\n", GetLastError());
return (1);
}

// Get the temp path.
dwRetVal = GetTempPath(dwBufSize, // length of the buffer
lpPathBuffer); // buffer for path
if (dwRetVal > dwBufSize || (dwRetVal == 0))
{
printf ("GetTempPath failed (%d)\n", GetLastError());
return (2);
}

// Create a temporary file.
uRetVal = GetTempFileName(lpPathBuffer, // directory for tmp files
TEXT("NEW"), // temp file name prefix
0, // create unique name
szTempName); // buffer for name
if (uRetVal == 0)
{
printf ("GetTempFileName failed (%d)\n", GetLastError());
return (3);
}

// Create the new file to write the upper-case version to.
hTempFile = CreateFile((LPTSTR) szTempName, // file name
GENERIC_READ | GENERIC_WRITE, // open r-w
0, // do not share
NULL, // default security
CREATE_ALWAYS, // overwrite existing
FILE_ATTRIBUTE_NORMAL,// normal file
NULL); // no template
if (hTempFile == INVALID_HANDLE_VALUE)
{
printf ("Second CreateFile failed (%d)\n", GetLastError());
return (4);
}

// Read BUFSIZE blocks to the buffer. Change all characters in
// the buffer to upper case. Write the buffer to the temporary
// file.
do
{
if (ReadFile(hFile,
buffer,
BUFSIZE,
&dwBytesRead,
NULL))
{
CharUpperBuffA(buffer, dwBytesRead);
fSuccess = WriteFile(hTempFile,
buffer,
dwBytesRead,
&dwBytesWritten,
NULL);
if (!fSuccess)
{
printf ("WriteFile failed (%d)\n", GetLastError());
return (5);
}
}
else
{
printf ("ReadFile failed (%d)\n", GetLastError());
return (6);
}
} while (dwBytesRead == BUFSIZE);

// Close the handles to the files.
fSuccess = CloseHandle (hFile);
if (!fSuccess)
{
printf ("CloseHandle failed (%d)\n", GetLastError());
return (7);
}
fSuccess = CloseHandle (hTempFile);
if (!fSuccess)
{
printf ("CloseHandle failed (%d)\n", GetLastError());
return (8);
}

// Move the temporary file to the new text file.
fSuccess = MoveFileEx(szTempName,
TEXT("Allcaps.txt"),
MOVEFILE_REPLACE_EXISTING);
if (!fSuccess)
{
printf ("MoveFileEx failed (%d)\n", GetLastError());
return (9);
}
else
_tprintf(TEXT("All caps version of %s written to Allcaps.txt\n"), argv[1]);
return (0);
}

</pre>

[[Category:Visual Studio]]

Create Unique File Name in Windows - Revision history

PeterHarding at 06:21, 6 January 2011

PeterHarding: CReate Unique File Name in Windows moved to Create Unique File Name in Windows: Type

PeterHarding: New page: =Example= * See : http://msdn.microsoft.com/en-us/library/aa363875(VS.85).aspx
#include #include #include #define BUFSIZE 512 int _tmain(int ar...