C++

Forum

 
hFind return INVALID_HANDLE_VALUE

Marie (3)
Hi!
For my first post in the forum, and because i'm a real beginner, i don't see from where does my error come from. After a selection of multiple files in a folder by the user, i try to rename them, as "image_1.jpg", "image_2.jpg" etc...
I thought my code was good, but i probably did a mistake because it didn't rename, because hFind is always INVALID_HANDLE_VALUE. Can you help me and show me where does that come from? Thank you very much!!

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
  string cam;
			 if(radioButton1->Checked == true){
				 cam="CDB";
			 }else if(radioButton2->Checked == true){
				 cam="CDH";
			 }else if(radioButton3->Checked == true){
				 cam="CGB";
			 }else if(radioButton3->Checked == true){
				 cam="CGH";
			 }

			 string sfol;
			 ifstream fich_chemin("chemin.txt");
			 getline(fich_chemin,sfol); 
			 fich_chemin.close();

			 WIN32_FIND_DATA ffd;
			 string Dossier = sfol+"\\calib_interne\\TOOLBOX_calib\\" + cam + "\\*.jpg";
			 cout << Dossier << endl;
			 TCHAR* dirname =  (TCHAR*)Dossier.c_str();
			 HANDLE hFind;
			 hFind = FindFirstFile((LPCWSTR)Dossier.c_str(), &ffd);
			 if (hFind == INVALID_HANDLE_VALUE){
				 cout << "erreur" << endl;
			 }
			 LPTSTR oldfilename;
			 TCHAR newfile[260];
			 LPTSTR newfilename = &newfile[0];

			 int i=1;
			 while (FindNextFile(hFind, &ffd)!=0)
			 {
				cout << "le premier fichier est " << ffd.cFileName << endl;
				oldfilename=ffd.cFileName;
				StringCchPrintf(newfilename,8,TEXT("%s\\image_%d.jpg"),dirname, i);
				BOOL rs = MoveFile(oldfilename,newfilename);
				i++;
			 }
			 FindClose(hFind);
hychan (34)
Did you forget to include libraries?
Marie (3)
No, here there are :

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#include "stdafx.h"
#include "Accueil.h"
#include <iostream>
#include <string>
#include <math.h>
#include "calib_cam_relative.h"
#include "calib_las_veh.h"
#include "calib_cam_las.h"
#include "calib_interne.h"
#include <stdio.h>
#include <strsafe.h>
#include <stdlib.h>
#include <fstream>
#include <sstream>
#include <windows.h>
#include<shellapi.h>
#include<conio.h>
hychan (34)
I think #include <string> should be #include <cstring>
Marie (3)
GetLastError send me : "File not found" but when I print the "Dossier", it's the good path.
The error seems to come from my (LPCWSTR)Dossier...
Topic archived. No new replies allowed.