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  4. Need help to get list of files in a directory...

Need help to get list of files in a directory...

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  • J Jijo Raj

    Since you are not using VC++ compiler, i'm sticking to pure windows apis. You could use FindFirstFile() and FindNextFile(). Check out this sample[^]. Regards, Jijo.

    _____________________________________________________ http://weseetips.com[^] Visual C++ tips and tricks. Updated daily.

    T Offline
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    Thilek
    wrote on last edited by
    #4

    JiJO raj, thanks ya but its still showing 27 C:\Documents and Settings\Thilek\Desktop\2nd_trial\god\main.cpp cannot convert `const WCHAR*' to `const CHAR*' for argument `1' to `void* FindFirstFileA(const CHAR*, _WIN32_FIND_DATAA*)' i running it on DevC++ since when i run it in VC++ express 2005 many header files missing in its library.... Any suggestions ???

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    • T Thilek

      JiJO raj, thanks ya but its still showing 27 C:\Documents and Settings\Thilek\Desktop\2nd_trial\god\main.cpp cannot convert `const WCHAR*' to `const CHAR*' for argument `1' to `void* FindFirstFileA(const CHAR*, _WIN32_FIND_DATAA*)' i running it on DevC++ since when i run it in VC++ express 2005 many header files missing in its library.... Any suggestions ???

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      D Offline
      David Crow
      wrote on last edited by
      #5

      Thilek wrote:

      thanks ya but its still showing 27

      27 files? 27 compiler errors? Please explain.

      Thilek wrote:

      C:\Documents and Settings\Thilek\Desktop\2nd_trial\god\main.cpp cannot convert `const WCHAR*' to `const CHAR*' for argument `1' to `void* FindFirstFileA(const CHAR*, _WIN32_FIND_DATAA*)'

      This is a Unicode issue. You'll need to use wcout.

      "Love people and use things, not love things and use people." - Unknown

      "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

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      • D David Crow

        Thilek wrote:

        thanks ya but its still showing 27

        27 files? 27 compiler errors? Please explain.

        Thilek wrote:

        C:\Documents and Settings\Thilek\Desktop\2nd_trial\god\main.cpp cannot convert `const WCHAR*' to `const CHAR*' for argument `1' to `void* FindFirstFileA(const CHAR*, _WIN32_FIND_DATAA*)'

        This is a Unicode issue. You'll need to use wcout.

        "Love people and use things, not love things and use people." - Unknown

        "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

        T Offline
        T Offline
        Thilek
        wrote on last edited by
        #6

        NOW I CAN RUN IT USING VC++ PROFF 2005 NO PROBLEM :) .. Below is the code i use : 1.#include <windows.h> 2.#include <stdio.h> 3.#include <iostream> 4.#include <string> 5.#include <sstream> 6. 7. 8. 9.std::string convertWCharArrayToString(const WCHAR * const wcharArray) { 10. std::stringstream ss; 11. 12. int i = 0; 13. char c = (char) wcharArray[i]; 14. while(c != '\0') { 15. ss <<c; 16. i++; 17. c = (char) wcharArray[i]; 18. } 19. 20. std::string convert = ss.str(); 21. return convert; 22.} 23. 24.int main() 25.{ 26. WIN32_FIND_DATA findFileData; 27. HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); 28. 29. if(hFind == INVALID_HANDLE_VALUE) { 30. std::cout <<"No files found." <<std::endl; 31. } else { 32. std::cout <<"Files found." <<std::endl; 33. } 34. 35. int fileNumber = 0; 36. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 37. while(FindNextFile(hFind, &findFileData)) { 38. fileNumber++; 39. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 40. } 41. 42. FindClose(hFind); 43. 44. char a; 45. std::cin>> a; 46. return 0; 47.} But when i change HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); to HANDLE hFind = FindFirstFile((LPCWSTR)"C:\*", &findFileData); its showing no file found and some funny symbols... but i wanted it to show entire list of files in a directory if i choose C:\ or D:\ and so on.. Can u guys help me plz... :)

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        • T Thilek

          NOW I CAN RUN IT USING VC++ PROFF 2005 NO PROBLEM :) .. Below is the code i use : 1.#include <windows.h> 2.#include <stdio.h> 3.#include <iostream> 4.#include <string> 5.#include <sstream> 6. 7. 8. 9.std::string convertWCharArrayToString(const WCHAR * const wcharArray) { 10. std::stringstream ss; 11. 12. int i = 0; 13. char c = (char) wcharArray[i]; 14. while(c != '\0') { 15. ss <<c; 16. i++; 17. c = (char) wcharArray[i]; 18. } 19. 20. std::string convert = ss.str(); 21. return convert; 22.} 23. 24.int main() 25.{ 26. WIN32_FIND_DATA findFileData; 27. HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); 28. 29. if(hFind == INVALID_HANDLE_VALUE) { 30. std::cout <<"No files found." <<std::endl; 31. } else { 32. std::cout <<"Files found." <<std::endl; 33. } 34. 35. int fileNumber = 0; 36. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 37. while(FindNextFile(hFind, &findFileData)) { 38. fileNumber++; 39. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 40. } 41. 42. FindClose(hFind); 43. 44. char a; 45. std::cin>> a; 46. return 0; 47.} But when i change HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); to HANDLE hFind = FindFirstFile((LPCWSTR)"C:\*", &findFileData); its showing no file found and some funny symbols... but i wanted it to show entire list of files in a directory if i choose C:\ or D:\ and so on.. Can u guys help me plz... :)

          D Offline
          D Offline
          David Crow
          wrote on last edited by
          #7

          Thilek wrote:

          But when i change HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); to HANDLE hFind = FindFirstFile((LPCWSTR)"C:\*", &findFileData);

          Use two backslashes within string literals. Why are you using convertWCharArrayToString()?

          "Love people and use things, not love things and use people." - Unknown

          "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

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          • D David Crow

            Thilek wrote:

            But when i change HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); to HANDLE hFind = FindFirstFile((LPCWSTR)"C:\*", &findFileData);

            Use two backslashes within string literals. Why are you using convertWCharArrayToString()?

            "Love people and use things, not love things and use people." - Unknown

            "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

            T Offline
            T Offline
            Thilek
            wrote on last edited by
            #8

            Still the same i tried using HANDLE hFind = FindFirstFile((LPCWSTR)"C:\\*", &findFileData); i even tried with "C://*" "C://" "C:\\" still showing no files found and some funny symbols... if i ever change it from "*" to anything this was happen.. hmmm... i am blur now... Help me plz... Thanks...

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            • T Thilek

              Still the same i tried using HANDLE hFind = FindFirstFile((LPCWSTR)"C:\\*", &findFileData); i even tried with "C://*" "C://" "C:\\" still showing no files found and some funny symbols... if i ever change it from "*" to anything this was happen.. hmmm... i am blur now... Help me plz... Thanks...

              D Offline
              D Offline
              David Crow
              wrote on last edited by
              #9

              Thilek wrote:

              i even tried with "C://*" "C://" "C:\\"

              What if you used *.*?

              Thilek wrote:

              still showing...some funny symbols...

              How are you verifying this?

              "Love people and use things, not love things and use people." - Unknown

              "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

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              • D David Crow

                Thilek wrote:

                i even tried with "C://*" "C://" "C:\\"

                What if you used *.*?

                Thilek wrote:

                still showing...some funny symbols...

                How are you verifying this?

                "Love people and use things, not love things and use people." - Unknown

                "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                T Offline
                T Offline
                Thilek
                wrote on last edited by
                #10

                well it jus show the folder name where is the c++ files are located if i use "." ... its not moving out of the folder....

                D 1 Reply Last reply
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                • T Thilek

                  NOW I CAN RUN IT USING VC++ PROFF 2005 NO PROBLEM :) .. Below is the code i use : 1.#include <windows.h> 2.#include <stdio.h> 3.#include <iostream> 4.#include <string> 5.#include <sstream> 6. 7. 8. 9.std::string convertWCharArrayToString(const WCHAR * const wcharArray) { 10. std::stringstream ss; 11. 12. int i = 0; 13. char c = (char) wcharArray[i]; 14. while(c != '\0') { 15. ss <<c; 16. i++; 17. c = (char) wcharArray[i]; 18. } 19. 20. std::string convert = ss.str(); 21. return convert; 22.} 23. 24.int main() 25.{ 26. WIN32_FIND_DATA findFileData; 27. HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); 28. 29. if(hFind == INVALID_HANDLE_VALUE) { 30. std::cout <<"No files found." <<std::endl; 31. } else { 32. std::cout <<"Files found." <<std::endl; 33. } 34. 35. int fileNumber = 0; 36. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 37. while(FindNextFile(hFind, &findFileData)) { 38. fileNumber++; 39. std::cout <<fileNumber <<":" <<convertWCharArrayToString(findFileData.cFileName) <<std::endl; 40. } 41. 42. FindClose(hFind); 43. 44. char a; 45. std::cin>> a; 46. return 0; 47.} But when i change HANDLE hFind = FindFirstFile((LPCWSTR)"*", &findFileData); to HANDLE hFind = FindFirstFile((LPCWSTR)"C:\*", &findFileData); its showing no file found and some funny symbols... but i wanted it to show entire list of files in a directory if i choose C:\ or D:\ and so on.. Can u guys help me plz... :)

                  V Offline
                  V Offline
                  vinvino2001
                  wrote on last edited by
                  #11

                  Directly take the output from findFileData.cFileName. The problem exists in your convertWCharArrayToString().

                  std::cout <<fileNumber <<":" <<findFileData.cFileName <<std::endl;

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                  • T Thilek

                    well it jus show the folder name where is the c++ files are located if i use "." ... its not moving out of the folder....

                    D Offline
                    D Offline
                    David Crow
                    wrote on last edited by
                    #12

                    Thilek wrote:

                    well it jus show the folder name where is the c++ files are located if i use "." ... its not moving out of the folder....

                    This makes little, if any, sense. Perhaps you are not understanding relative vs. absolute paths. For example, if you specified "*.*", then ".\\*.*" is implied and the files in the current working directory (CWD) will be listed. If you specified "..\\*.*", then the files in the CWD's parent folder will be listed. If you specified "c:\\*.*", then the files in the root folder will be listed. Consider:

                    void main( void )
                    {
                    WIN32_FIND_DATA findFileData;

                    HANDLE hFind = FindFirstFile(\_T("\*.\*"), &findFileData);
                    if (hFind != INVALID\_HANDLE\_VALUE)
                    {
                        BOOL bFound = true;
                        int fileNumber = 0;
                     
                        while (bFound)
                        {
                            fileNumber++;
                            wcout << fileNumber << \_T(":") << findFileData.cFileName << endl;
                    
                            bFound = FindNextFile(hFind, &findFileData);
                        }
                    
                        FindClose(hFind);
                    } 
                    

                    }

                    "Love people and use things, not love things and use people." - Unknown

                    "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

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                    • V vinvino2001

                      Directly take the output from findFileData.cFileName. The problem exists in your convertWCharArrayToString().

                      std::cout <<fileNumber <<":" <<findFileData.cFileName <<std::endl;

                      T Offline
                      T Offline
                      Thilek
                      wrote on last edited by
                      #13

                      well still the same.. if i put the exe file in C:/ and run it it shows the files and folders in C:/ but it does not going in further into the folders and get the file list.... The program i been working have to get the entire files in the subfolders.. since i am creating a anti-worm system... thanks :)

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                      • D David Crow

                        Thilek wrote:

                        well it jus show the folder name where is the c++ files are located if i use "." ... its not moving out of the folder....

                        This makes little, if any, sense. Perhaps you are not understanding relative vs. absolute paths. For example, if you specified "*.*", then ".\\*.*" is implied and the files in the current working directory (CWD) will be listed. If you specified "..\\*.*", then the files in the CWD's parent folder will be listed. If you specified "c:\\*.*", then the files in the root folder will be listed. Consider:

                        void main( void )
                        {
                        WIN32_FIND_DATA findFileData;

                        HANDLE hFind = FindFirstFile(\_T("\*.\*"), &findFileData);
                        if (hFind != INVALID\_HANDLE\_VALUE)
                        {
                            BOOL bFound = true;
                            int fileNumber = 0;
                         
                            while (bFound)
                            {
                                fileNumber++;
                                wcout << fileNumber << \_T(":") << findFileData.cFileName << endl;
                        
                                bFound = FindNextFile(hFind, &findFileData);
                            }
                        
                            FindClose(hFind);
                        } 
                        

                        }

                        "Love people and use things, not love things and use people." - Unknown

                        "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                        T Offline
                        T Offline
                        Thilek
                        wrote on last edited by
                        #14

                        but is there anyway if i type in C:/ or D:/ it will show files in the directory including the files in sub folders ???

                        D 1 Reply Last reply
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                        • T Thilek

                          but is there anyway if i type in C:/ or D:/ it will show files in the directory including the files in sub folders ???

                          D Offline
                          D Offline
                          David Crow
                          wrote on last edited by
                          #15

                          Thilek wrote:

                          but is there anyway if i type in C:/ or D:/ it will show files in the directory including the files in sub folders ???

                          Yes. The easiest solution is via a recursive function call. Examples are plentiful on the Web and here at CP.

                          "Love people and use things, not love things and use people." - Unknown

                          "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                          T 1 Reply Last reply
                          0
                          • D David Crow

                            Thilek wrote:

                            but is there anyway if i type in C:/ or D:/ it will show files in the directory including the files in sub folders ???

                            Yes. The easiest solution is via a recursive function call. Examples are plentiful on the Web and here at CP.

                            "Love people and use things, not love things and use people." - Unknown

                            "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                            T Offline
                            T Offline
                            Thilek
                            wrote on last edited by
                            #16

                            thanks ya.. do u have any links related to that topics :)

                            D 1 Reply Last reply
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                            • T Thilek

                              thanks ya.. do u have any links related to that topics :)

                              D Offline
                              D Offline
                              David Crow
                              wrote on last edited by
                              #17

                              Link 1 Link 2 Link 3

                              "Love people and use things, not love things and use people." - Unknown

                              "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                              T 1 Reply Last reply
                              0
                              • D David Crow

                                Link 1 Link 2 Link 3

                                "Love people and use things, not love things and use people." - Unknown

                                "The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch

                                T Offline
                                T Offline
                                Thilek
                                wrote on last edited by
                                #18

                                Thanks a lot my friend i try it out and update with u the results.. God bless you... :)

                                1 Reply Last reply
                                0
                                • T Thilek

                                  well still the same.. if i put the exe file in C:/ and run it it shows the files and folders in C:/ but it does not going in further into the folders and get the file list.... The program i been working have to get the entire files in the subfolders.. since i am creating a anti-worm system... thanks :)

                                  H Offline
                                  H Offline
                                  Hamid Taebi
                                  wrote on last edited by
                                  #19

                                  Where do you have problem exactly?FindFirstFile is easy to use?

                                  Of one Essence is the human race thus has Creation put the base One Limb impacted is sufficient For all Others to feel the Mace (Saadi )

                                  1 Reply Last reply
                                  0
                                  • T Thilek

                                    well still the same.. if i put the exe file in C:/ and run it it shows the files and folders in C:/ but it does not going in further into the folders and get the file list.... The program i been working have to get the entire files in the subfolders.. since i am creating a anti-worm system... thanks :)

                                    V Offline
                                    V Offline
                                    vinvino2001
                                    wrote on last edited by
                                    #20

                                    You have to recursively call and iterate each Folders from the output if findFileData.dwFileAttributes is FILE_ATTRIBUTE_DIRECTORY. Try that.

                                    1 Reply Last reply
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