Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-84002

Qt detects Unicode command line arguments as question marks

    XMLWordPrintable

Details

    • Bug
    • Resolution: Out of scope
    • P3: Somewhat important
    • None
    • 5.7.0, 5.14.0
    • Core: Other
    • None
    • Microsoft Windows 10
    • Windows

    Description

      Sometimes when I build a Qt C++ app (MinGW) and open it with arguments in Windows 10, it shows Unicode arguments as question marks. I don't really know when but I think it depends on parameter's length and being or not being whitespaces in parameter.

       

      For example (demonstration):

      ( chcp 65001 )
       

      >app.exe سلام

      receives: سلام

       

      >app.exe سلاممممم

      receives: سلاممممم

       

      >app.exe سلامممممم

      receives: ?????????

       

      >app.exe d:\خطا

      receives: d:???

       

      >app.exe "d:\خطا دار"

      receives: d:\خطا دار

       

      >app.exe C:\Users\Reza\Desktop\خطا.txt

      receives: C:\Users\Reza\Desktop???.txt

       

      >app.exe C:\Users\Default\Desktop\خطا.txt

      receives: C:\Users\Default\Desktop\خطا.txt

       

       

      I tested using QCommandLineParser, and also app.arguments() but all were the same.

       

      Even I checked values stored in argv[] manually and even there, some Unicode characters where stored as question marks.

      Attachments

        1. main.cpp
          0.9 kB
        2. qtbug84002.jpg
          qtbug84002.jpg
          115 kB
        3. qtbug84002.zip
          2 kB
        4. u3.pro
          0.4 kB

        Issue Links

          Activity

            People

              thiago Thiago Macieira
              reza55n Reza Alizadeh
              Votes:
              0 Vote for this issue
              Watchers:
              3 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: