<![CDATA[How to change size of QWidget by connect(button...)]]>Please help with two problems.
1)I need to connect one of buttons of this class with changing size of myWindow by consts. (for exaplme setSize(x*y) ).

@class MyWindow : public QWidget, public Ui::MyWindow
{
Q_OBJECT
//...
}
@
2) And how I can prevent to user to change the size?
@layout()->setSizeConstraint(QLayout::SetFixedSize);@
is't work. It crashes the program:
@
Runs MyWindow.exe ....
The program terminated unexpectedly.
MyWindow.exe exited with code -1073741819
@

]]>https://forum.qt.io/topic/25787/how-to-change-size-of-qwidget-by-connect-buttonRSS for NodeTue, 04 Aug 2026 13:08:37 GMTMon, 01 Apr 2013 16:10:30 GMT60<![CDATA[Reply to How to change size of QWidget by connect(button...) on Mon, 01 Apr 2013 17:27:40 GMT]]>@void MyWindow::sizeBigger()
{
this->setFixedSize(477, 250);
groupBox_3->show();
}
void MyWindow::sizeSmoller()
{
this->setFixedSize(477, 180);
groupBox_3 -> hide();
}
@
Is work, thank you! But, after sizeSmoller all groupBoxes become Black.
groupBox_3 - lowest groupBox.
!http://i.imgur.com/iRz9Egdl.jpg(Problem)!

]]>https://forum.qt.io/post/172346https://forum.qt.io/post/172346Mon, 01 Apr 2013 17:27:40 GMT<![CDATA[Reply to How to change size of QWidget by connect(button...) on Mon, 01 Apr 2013 17:03:08 GMT]]>Ok, but I need to connect it. That's method, not slot. Sorry for quations like this I have not perfect English.

]]>https://forum.qt.io/post/172344https://forum.qt.io/post/172344Mon, 01 Apr 2013 17:03:08 GMT<![CDATA[Reply to How to change size of QWidget by connect(button...) on Mon, 01 Apr 2013 16:45:52 GMT]]>"QWidget::setFixedSize":http://qt-project.org/doc/qt-4.8/qwidget.html#setFixedSize-2

]]>https://forum.qt.io/post/172343https://forum.qt.io/post/172343Mon, 01 Apr 2013 16:45:52 GMT