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Thread: error: expected unqualified-id before numeric constant

  1. #21
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    Default Re: error: expected unqualified-id before numeric constant

    And are you positive that the error is from that line, where you create the QKeyEvent?

    And what about this?
    Qt Code:
    1. QKeyEvent *e=new QKeyEvent(QEvent::KeyPress,65,Qt::NoModifier,QStri ng("> "));
    To copy to clipboard, switch view to plain text mode 

    There is still a space in the middle of QString.
    Jpn also asked this, and now you have the same error? How is this a copy-paste error?

    Regards

  2. #22
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    Default Re: error: expected unqualified-id before numeric constant

    I still cannot spot the error.
    Does it compile if you remove that line?

    Apart from the problem you have, this is not correct:
    Qt Code:
    1. QKeyEvent *e=new QKeyEvent(QEvent::KeyPress,65,Qt::NoModifier,QStri ng("> "));
    2. keyPressEvent(e);
    To copy to clipboard, switch view to plain text mode 

    keyPressEvent is not meant to be called like that.
    Use qApp->postEvent instead.

    Regards

  3. #23
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    Default Re: error: expected unqualified-id before numeric constant

    Hi Marcel,
    Could you get some clue? I have traced that due to QEvent::KeyPress, the error is coming, Compiler is unable to recognize the the keyword.

  4. #24
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    Default Re: error: expected unqualified-id before numeric constant

    Could you post the include section from that file?
    All the includes.

    Regards

  5. #25
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    Default Re: error: expected unqualified-id before numeric constant

    Hi,

    I'm using Qt4.1, and I had the same problem and I have resolved it with an include and a replacement :
    #include <QKeyEvent> //that's very important
    (QEvent::Type)6 instead of QEvent::KeyPress

    example :
    KeyEvent* kevent = new QKeyEvent((QEvent::Type)6,buffer[0],(Qt::KeyboardModifiers)Qt::NoModifier,buffer,fals e,1);

    I hope it will help someone.

  6. #26
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    Default Re: error: expected unqualified-id before numeric constant

    You sure don't have to use such ugly C-style casts when you have the necessary include directive in place.

    Qt Code:
    1. #include <QKeyEvent>
    2. ...
    3. QKeyEvent* kevent = new QKeyEvent(QEvent::KeyPress,buffer[0],Qt::NoModifier,buffer,false,1);
    To copy to clipboard, switch view to plain text mode 
    J-P Nurmi

  7. #27
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    Default Re: error: expected unqualified-id before numeric constant

    I don't understand why you don't use enum Qt::Key for second parameter in QKeyEvent ctor?

  8. #28

    Default Re: error: expected unqualified-id before numeric constant

    The problem is likely that you are including X.h which has

    Qt Code:
    1. // X.11.h
    2. ...
    3. ...
    4. #define KeyPress 2
    To copy to clipboard, switch view to plain text mode 

    So the preprocessor is converting this to...

    Qt Code:
    1. QKeyEvent* kevent = new QKeyEvent(QEvent::2,buffer[0],Qt::NoModifier,buffer,false,1);
    To copy to clipboard, switch view to plain text mode 

    Try adding

    Qt Code:
    1. #undef KeyPress // safe as long as you are not referencing KeyPress from X.h after this line
    2. QKeyEvent* kevent = new QKeyEvent(QEvent::KeyPress,buffer[0],Qt::NoModifier,buffer,false,1);
    To copy to clipboard, switch view to plain text mode 

    i.e. assuming that further down you won't be referring to KeyPress from X.h

  9. #29
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    Default Re: error: expected unqualified-id before numeric constant

    Why are you replying to a nearly 12 year old thread? Please check the date of the last post in a thread before bringing one back from the dead.
    <=== The Great Pumpkin says ===>
    Please use CODE tags when posting source code so it is more readable. Click "Go Advanced" and then the "#" icon to insert the tags. Paste your code between them.

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