Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. how to open a file in my qt app via double clicking on it
Forum Updated to NodeBB v4.3 + New Features

how to open a file in my qt app via double clicking on it

Scheduled Pinned Locked Moved Solved General and Desktop
32 Posts 5 Posters 3.8k Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • J JonB
    12 Sept 2021, 10:29

    @_-mohamed-_
    So why not debug out URL and the file path from QFile file for yourself? Do you mean that filename really has ???? in it??

    _ Offline
    _ Offline
    _-mohamed-_
    wrote on 12 Sept 2021, 11:15 last edited by
    #21

    @JonB no the real file name is "عربي.txt" but i can't get the real name from app's argument

    J 1 Reply Last reply 12 Sept 2021, 12:08
    0
    • _ _-mohamed-_
      12 Sept 2021, 11:15

      @JonB no the real file name is "عربي.txt" but i can't get the real name from app's argument

      J Offline
      J Offline
      JonB
      wrote on 12 Sept 2021, 12:08 last edited by JonB 9 Dec 2021, 12:08
      #22

      @_-mohamed-_
      Look at file.errorString() when the file.open() fails. And print out URL and file.fileName().

      _ 1 Reply Last reply 12 Sept 2021, 12:18
      0
      • J JonB
        12 Sept 2021, 12:08

        @_-mohamed-_
        Look at file.errorString() when the file.open() fails. And print out URL and file.fileName().

        _ Offline
        _ Offline
        _-mohamed-_
        wrote on 12 Sept 2021, 12:18 last edited by
        #23

        @JonB i printed the URL and i got (C:\Users\moham\OneDrive\Desktop????.txt) as i said in the previous post
        So file.open () can't open a strange text (????.txt)

        C 1 Reply Last reply 12 Sept 2021, 13:08
        0
        • _ _-mohamed-_
          12 Sept 2021, 12:18

          @JonB i printed the URL and i got (C:\Users\moham\OneDrive\Desktop????.txt) as i said in the previous post
          So file.open () can't open a strange text (????.txt)

          C Offline
          C Offline
          Christian Ehrlicher
          Lifetime Qt Champion
          wrote on 12 Sept 2021, 13:08 last edited by
          #24

          @_-mohamed-_ said in how to open a file in my qt app via double clicking on it:

          i printed the URL and i got (C:\Users\moham\OneDrive\Desktop????.txt) as i said in the previous post

          You must not print non-ascii characters on a windows console - windows is too stupid for this. You QMessageBox or similar.

          Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
          Visit the Qt Academy at https://academy.qt.io/catalog

          _ 1 Reply Last reply 12 Sept 2021, 13:23
          0
          • C Christian Ehrlicher
            12 Sept 2021, 13:08

            @_-mohamed-_ said in how to open a file in my qt app via double clicking on it:

            i printed the URL and i got (C:\Users\moham\OneDrive\Desktop????.txt) as i said in the previous post

            You must not print non-ascii characters on a windows console - windows is too stupid for this. You QMessageBox or similar.

            _ Offline
            _ Offline
            _-mohamed-_
            wrote on 12 Sept 2021, 13:23 last edited by
            #25

            @Christian-Ehrlicher I have set the text in QTextEdit using ui->TextEdit->setPlainText (URL)

            J 1 Reply Last reply 12 Sept 2021, 17:20
            0
            • _ _-mohamed-_
              12 Sept 2021, 13:23

              @Christian-Ehrlicher I have set the text in QTextEdit using ui->TextEdit->setPlainText (URL)

              J Offline
              J Offline
              JonB
              wrote on 12 Sept 2021, 17:20 last edited by
              #26

              @_-mohamed-_
              I said:

              Look at file.errorString() when the file.open() fails.

              _ 1 Reply Last reply 13 Sept 2021, 05:59
              0
              • J JonB
                12 Sept 2021, 17:20

                @_-mohamed-_
                I said:

                Look at file.errorString() when the file.open() fails.

                _ Offline
                _ Offline
                _-mohamed-_
                wrote on 13 Sept 2021, 05:59 last edited by
                #27

                @JonB why? I said that file.open() fail because the path is incorrect

                ok now I tried file.errorString() and it returns The filename, directory name, or volume label syntax is incorrect.

                1 Reply Last reply
                0
                • _ Offline
                  _ Offline
                  _-mohamed-_
                  wrote on 13 Sept 2021, 06:21 last edited by
                  #28

                  I tried to open the same file with all text editors on my computer like (notepad++, VScode, Pycharm, Qt creator...) And they all opened the file successfully, is the problem in Qt?

                  1 Reply Last reply
                  0
                  • _ Offline
                    _ Offline
                    _-mohamed-_
                    wrote on 13 Sept 2021, 11:43 last edited by
                    #29

                    I got a new problem when i override dropEvent function in QTextEdit
                    I used event->mimedata()->urls->at (0) to get the url of the droped file

                    But i got the same problem which is in arabic letters files name i got questions marks instade of the real file name(?????)

                    J 1 Reply Last reply 13 Sept 2021, 12:25
                    0
                    • _ _-mohamed-_
                      13 Sept 2021, 11:43

                      I got a new problem when i override dropEvent function in QTextEdit
                      I used event->mimedata()->urls->at (0) to get the url of the droped file

                      But i got the same problem which is in arabic letters files name i got questions marks instade of the real file name(?????)

                      J Offline
                      J Offline
                      JonB
                      wrote on 13 Sept 2021, 12:25 last edited by JonB
                      #30

                      @_-mohamed-_
                      How do you know that? @Christian-Ehrlicher wrote earlier

                      You must not print non-ascii characters on a windows console - windows is too stupid for this. You QMessageBox or similar.

                      Did you act on that? It is not clear to me how you are outputting this string, have you looked at it on a QMessageBox or a QLabel, or have you used the debugger to check what the actual bytes are in the string?

                      _ 1 Reply Last reply 13 Sept 2021, 19:59
                      0
                      • J JonB
                        13 Sept 2021, 12:25

                        @_-mohamed-_
                        How do you know that? @Christian-Ehrlicher wrote earlier

                        You must not print non-ascii characters on a windows console - windows is too stupid for this. You QMessageBox or similar.

                        Did you act on that? It is not clear to me how you are outputting this string, have you looked at it on a QMessageBox or a QLabel, or have you used the debugger to check what the actual bytes are in the string?

                        _ Offline
                        _ Offline
                        _-mohamed-_
                        wrote on 13 Sept 2021, 19:59 last edited by _-mohamed-_
                        #31

                        @JonB
                        Oh it's my fault this time, I used qDebug() to see the output, Sorry
                        now I used QMessageBox and it works(i mean dropEvent() function)

                        Thanks for your alert!

                        1 Reply Last reply
                        0
                        • _ Offline
                          _ Offline
                          _-mohamed-_
                          wrote on 7 Oct 2021, 19:03 last edited by
                          #32

                          I found a solution to this problem
                          the URL is coming from the system, so the problem with the system

                          I fixed that problem by enabling UTF-8 for windows by following these steps:

                          • Open Control Panel
                          • Click on Clock and Region
                          • Click on Region
                          • Go to Administrative tab
                          • Click on Change system locale...
                          • Click on Beta: Use Unicode UTF-8 for worldwide language support check box.
                          • Then when you restart your computer the problem will disappear :)

                          if you have any other solution please tell me

                          1 Reply Last reply
                          0

                          • Login

                          • Login or register to search.
                          • First post
                            Last post
                          0
                          • Categories
                          • Recent
                          • Tags
                          • Popular
                          • Users
                          • Groups
                          • Search
                          • Get Qt Extensions
                          • Unsolved