Re: Get the path of a file - C / C++ / MFC Discussion Boards

David Crow12-May-04 8:11

12-May-04 8:11

Why call GetFullPathName() at all? If you are interested in the filename that was selected, just reference ofn.lpstrFile.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Get the path of a file

Ruben93812-May-04 8:45

Ruben938

12-May-04 8:45

ok, I just want to check if in the same folder, the one that the user select by selecting the file there is another specific file... without the interaction of the user. that's all.

Thaks, Ruben.

Re: Get the path of a file

David Crow12-May-04 8:49

David Crow

12-May-04 8:49

Use _splitpath() to split ofn.lpstrFile into its individual components. Then merge the components back together using " another specific file" instead of the file that was selected via GetOpenFileName().

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Get the path of a file

Ruben93812-May-04 11:16

Ruben938

12-May-04 11:16

Thanks, could give and example on how to use this function?

Thanks, Ruben.

Re: Get the path of a file

David Crow13-May-04 2:09

David Crow

13-May-04 2:09

I presume you are referring to _splitpath(). If so, the MSDN docs have a good example.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Get the path of a file

Ruben93812-May-04 11:16

Ruben938

12-May-04 11:16

How would you merge the other file with the path?

Thanks, Ruben.

Re: Get the path of a file

David Crow13-May-04 2:11

David Crow

13-May-04 2:11

Use a CString object and its concatenation operator. Smething like:

CString str = drive + dir + file_you_want_to_check;

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Get the path of a file

Christopher Lloyd12-May-04 10:30

Christopher Lloyd

12-May-04 10:30

MS documentation states: "The GetFullPathName function retrieves the full path and file name of a specified file". So you still have the file name there.

I'd use PathRemoveFileSpec this "Removes the trailing file name and backslash from a path, if it has them."

Info on PathRemoveFileSpec:

Minimum DLL Version shlwapi.dll version 4.71 or later
Header shlwapi.h
Import library shlwapi.lib
Minimum operating systems Windows 2000, Windows NT 4.0 with Internet Explorer 4.0, Windows 98, Windows 95 with Internet Explorer 4.0

Re: Get the path of a file

Ruben93812-May-04 11:22

Ruben938

12-May-04 11:22

Thanks, I am able to use that function ..

I call it with the ofn.lpstrFile (path and file name).

Then I should have the ofn.lpstrFile ready to merge with the other file name ... how can I do this?

Thanks, Ruben.

Re: Get the path of a file

Christopher Lloyd13-May-04 2:00

Christopher Lloyd

13-May-04 2:00

If you've got the Windows SDK then you'll find details about the Shell Lightweight Utility Path Funtions in the documentation under:

User Interface Services > Windows Shell > Shell Reference > Shell Lightweight Utility Funtions > Path Functions.

(If you've not got the SDK then I recommend you get it. It's a free download from msdn)

There are lots of useful routines for manipulating paths. The one you need to merge the path with the name of the 2nd file is PathAppend.
Cheers, Chris

Re: Get the path of a file

Ruben93812-May-04 11:50

Ruben938

12-May-04 11:50

And it was already there!!!
Thanks to all for the suggestion.

http://www.codeproject.com/cpp/cfilespec.asp?df=100&forumid=30665&exp=0&select=699755

Hexadecimal

Roger H. Art12-May-04 7:34

Roger H. Art

12-May-04 7:34

Hi.

How could I convert an hecadecimal value that is in a CString variable to integer hexadecimal
for example I have:

CString strHexa="C9"

but I need this value in an integer variable:

int n=0xc9;

Thank you.

Re: Hexadecimal

David Crow12-May-04 7:41

David Crow

12-May-04 7:41

char *end;
int n = strtol(strHexa, &end, 16);

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Hexadecimal

toxcct12-May-04 7:44

toxcct

12-May-04 7:44

<font style="color:blue;">#include</font> <stdio.h>     <font style="color:green;">// sscanf(), printf()</font>
<font style="color:blue;">#include</font> <CString>     <font style="color:green;">// Class CString</font>
 
<font style="color:blue;">int</font> my_integer = 0;
Cstring string = "C9";
<font style="color:blue;">char </font>str[] = (LPCTSTR)string;
sscanf(str, "%x", my_integer);
 
printf("%d %x\n", my_integer, my_integer);

this outputs : 201 C9

TOXCCT >>> GEII power

How to set up Windows XP theme for the controls

Truong D. Toan12-May-04 7:07

Truong D. Toan

12-May-04 7:07

Anyone knows how to set up Windows XP theme for the controls.
Thanx very much...;)

Re: How to set up Windows XP theme for the controls

Joe Woodbury12-May-04 7:11

Joe Woodbury

12-May-04 7:11

Do you mean for your application, or so you can draw controls using themes?

If the latter, look up OpenThemeData()[^] in MSDN for a starting point.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: How to set up Windows XP theme for the controls

Prakash Nadar12-May-04 7:14

Prakash Nadar

12-May-04 7:14

You need to use manifest, there are number of articles that shows how to use them here in CP.

I'll write a suicide note on a hundred dollar bill - Dire Straits

Non Recursive Folder Traversal

bikram singh12-May-04 6:15

bikram singh

12-May-04 6:15

The usual technique of traversing a folder and all it's sub-folders is pretty commonplace, but it suffers from the fact that the stack just might run out (sure, we can specify the stack size in vc, but we dont want to hog a lot of memory for the stack!).

What is a good way to use a non-recursive loop to traverse folders? Is there no solution apart from using "goto" statements? Eek! | :eek:

Bikram

Re: Non Recursive Folder Traversal

David Crow12-May-04 6:31

David Crow

12-May-04 6:31

Bikram Singh wrote:
What is a good way to use a non-recursive loop to traverse folders? Is there no solution apart from using "goto" statements?

Sure there is. Just call SetCurrentDirectory() with each directory encountered.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Non Recursive Folder Traversal

bikram singh12-May-04 6:39

bikram singh

12-May-04 6:39

Do you have some source code for the entire problem?

Bikram

Re: Non Recursive Folder Traversal

David Crow12-May-04 7:39

David Crow

12-May-04 7:39

No. I've personally not ever used the function. It's a hold-over from the Unix world and its single-threaded environment. For Windows and multi-threaded applications, if another thread is running, the "current directory" is constantly changing for all of the threads. For anything that requires folder traversal, I always use recursion. Can you explain in more detail your hesitation in using this methodology?

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Non Recursive Folder Traversal

Jim Crafton12-May-04 6:33

Jim Crafton

12-May-04 6:33

If your program in a Win32 app with a message loop you could use PostMessage to do the whole thing asynchronously, and then in the main function use a event loop to wait till it was all done. Dunno how efficient that is Smile | :)

¡El diablo está en mis pantalones! ¡Mire, mire!

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Re: Non Recursive Folder Traversal

Joe Woodbury12-May-04 10:27

Joe Woodbury

12-May-04 10:27

Search in this board for an algorithm I posted a week ago or so to recurse a directory. This uses SetCurrentDirectory() and uses minimal stack.

Anyone who thinks he has a better idea of what's good for people than people do is a swine.
- P.J. O'Rourke

Re: Non Recursive Folder Traversal

David Crow13-May-04 2:16

David Crow

13-May-04 2:16

I tried this for almost an hour yesterday because I knew I had just recently seen an example. All that I could find was a post from coremn.

"The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998)

Re: Non Recursive Folder Traversal

Joel Lucsy13-May-04 3:58

Joel Lucsy

13-May-04 3:58

It's pretty easy. Something like:

<br />
CStringList dirs, files;<br />
CString dir;<br />
CFileFind ff;<br />
BOOL ok;<br />
<br />
dirs.AddTail("c:\\work\\lisp");<br />
<br />
while (!dirs.IsEmpty())<br />
{<br />
  dir = dirs.RemoveHead();<br />
  if (ff.FindFile( dir + "\\*.*" ))<br />
  {<br />
    do<br />
    {<br />
      ok = ff.FindNextFile();<br />
      if (ff.IsDots()) continue;<br />
      if (ff.IsDirectory())<br />
      {<br />
        dirs.AddTail( ff.GetFilePath() );<br />
        continue;<br />
      }<br />
      files.AddTail( ff.GetFilePath() );<br />
    }while (ok);<br />
  }<br />
}<br />

--
Joel Lucsy

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