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Thread: Qwidget Show abnormal /setGeometry not working

  1. #1
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    Angry Qwidget Show abnormal /setGeometry not working

    I build a app use QtCreator /MSVC2010 (Win7 )

    my app UI extend QWidget,the geometry is (0,0,860,600)

    Where i run it on windows xp sp3(only one system is abnormal,anothers is good) , the app show abnormal,show a big big window.

    I'm Rewrite the QWidget::resizeEvent(e){
    } function,print the size and oldsize information:


    i print :

    old size -1,-1, new size > 3766,600

    but on my PC,the UI show normal,
    print:

    old size -1,-1, new size > 860,600

    then ,i write these code :


    if(oldWin.width() == -1 &&
    oldWin.height() == -1){
    if(size.width() != 860 || size.height() != 600){
    resize(860,600);
    setGeometry(0,0,860,600);
    }
    }

    in resizeEvent(e);
    and the resize and setGeometry do not work ,the window still show abnormal~

    who can tell me ? Why ?

  2. #2
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    Default Re: Qwidget Show abnormal /setGeometry not working

    Don't you think that it never enters the condition ? why would it ever be necessary to check width and height with -1 ?

    (insert your code between tags. and don't mix code with statements)
    Last edited by saman_artorious; 28th April 2013 at 14:56.

  3. #3
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    Default Re: Qwidget Show abnormal /setGeometry not working

    Maybe you should read the documentation for QWidget::geometry(), especially this part:

    Warning: Calling setGeometry() inside resizeEvent() or moveEvent() can lead to infinite recursion.

    See the Window Geometry documentation for an overview of geometry issues with windows.

  4. #4
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    Default Re: Qwidget Show abnormal /setGeometry not working

    thanks for your reply,

    my problem is qwidget show abnormal ,at begin, my widget geometry is 0,0,860,600, but it's display an 0,0,3766,600 window. my layout is HorizontalLayout

  5. #5
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    Default Re: Qwidget Show abnormal /setGeometry not working

    If you use layouts then calling setGeometry is a no-op as the layout will override it.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


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