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  1. Qt
  2. QTBUG-120665

Research: Modernization of Qt backends on Windows

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    • Resolution: Unresolved
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    • 6.12
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      Currently Windows backends in Qt which are based on WinRT APIs (not Win32) use raw COM pointer functionality. This approach has several drawbacks such as:

      • Unreadable code and thus high maintenance effort
      • Inconsistent error handling across modules/backends
      • Inconsistent use of best practices and thus bugs

      By switching over to c++/winrt for these backends most of these issues could be fixed.

      Open questions are:

      • Which backends need to be ported?
      • What's the effort estimate for the port?
      • What's the level of support for c++/winrt in other Windows toolchains?
      • Are there toolchains that do support WinRT APIs but do not support c++/winrt? Thus: Would we lose functionality?

        1.
        		 Windows c++ toolchain functionality check Technical task Reported Oliver Wolff
        2.
        		 Check c++/winrt porting effort for "raw COM" backends Technical task Reported Oliver Wolff
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            owolff Oliver Wolff
            owolff Oliver Wolff
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