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Mixing Qt and platform-dependent development

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  • P Offline
    P Offline
    Peppy
    wrote on last edited by
    #1

    Hello guys, I wonder how can develop with Qt and Objective-C in QtCreator? I'd like to use the full "power" of the platform...

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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi,

      Just have a look at the qtmacextras code/examples to see how to mix both

      Hope it helps

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • P Offline
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        Peppy
        wrote on last edited by
        #3

        Okay, is there any way I can configure QtCreator to work with Objective-C code?
        Somehow my syntax-highlighter of Objective-C code seems to be broken. (http://goo.gl/oybesZ )

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Nothing to configure, in your pro file just add the objective-c/c++ source files to OBJECTIVE_SOURCES rather than SOURCES

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • P Offline
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            Peppy
            wrote on last edited by
            #5

            Yes, but QtCreator somehow does not handle those files (syntax highlighting is somehow broken).

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            • SGaistS Offline
              SGaistS Offline
              SGaist
              Lifetime Qt Champion
              wrote on last edited by
              #6

              Which version of Qt Creator are you using ?

              Interested in AI ? www.idiap.ch
              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • P Offline
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                Peppy
                wrote on last edited by
                #7

                Well 3.1.2 now. I am not sure how should correct syntax highlight look like.

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                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #8

                  Did you download the syntax highlight definition file for Objective-C/C++ ?

                  Interested in AI ? www.idiap.ch
                  Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • P Offline
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                    Peppy
                    wrote on last edited by
                    #9

                    Yes I did, but it doesn't work correctly.

                    @https://www.dropbox.com/s/atyq03rc4h3nb1n/Screenshot 2014-08-02 23.13.55.png@

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                    • P Offline
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                      Peppy
                      wrote on last edited by
                      #10

                      Well, I have figured out how to compile Objective-C/C++ code within QtCreator but I am not able to somehow connect C++ and Objective-C code. I'm getting weird errors like:

                      @.../System/Library/Frameworks/Foundation.framework/Headers/NSObjCRuntime.h:422: error: unknown type name 'NSString'; did you mean 'QString'?
                      FOUNDATION_EXPORT void NSLog(NSString *format, ...) NS_FORMAT_FUNCTION(1,2);
                      @

                      I'm really not sure how to bind these two guys together.

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                      • SGaistS Offline
                        SGaistS Offline
                        SGaist
                        Lifetime Qt Champion
                        wrote on last edited by
                        #11

                        Can you show your code ?

                        Interested in AI ? www.idiap.ch
                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                        • P Offline
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                          Peppy
                          wrote on last edited by
                          #12

                          Well, okay:
                          I have in MainWindow.cpp something like this:

                          @
                          #include "NativeWindowExtensions.h"

                          struct NativeWindowExtensions;
                          class MainWindow : public QMainWindow {
                          NativeWindowExtensions * native;
                          };
                          @

                          NativeWindowExtensions.h contains C++ struct which stores Objective-C object (NSWindow):

                          @
                          #import <Cocoa/Cocoa.h>

                          //objective-C code

                          // c++ code
                          @

                          which doesn't work.

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #13

                            It would help to have the content of NativeWindowExtensions.h

                            Interested in AI ? www.idiap.ch
                            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                            • P Offline
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                              Peppy
                              wrote on last edited by
                              #14

                              Well here you go: "Pastebin.com":http://pastebin.com/nTdkLC20

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