SizeHint problem

[marmistrz]

Hi
I'm learning Qt.
I was trying a test program from a book, but I've got an error:

QWidget::setMinimumSize: (/findDialog) Negative sizes (0,-1) are not possible
QWidget::setMaximumSize: (/findDialog) Negative sizes (16777215,-1) are not possible

QWidget::setMinimumSize: (/findDialog) Negative sizes (0,-1) are not possible
QWidget::setMaximumSize: (/findDialog) Negative sizes (16777215,-1) are not possible

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the code's in attachment

How to fix it?

[Santosh Reddy]

The attached project works if you have the following statement added in ctor

...
QHBoxLayout* main = new QHBoxLayout;
main -> addLayout(l);
main -> addLayout(r);
 
 
setWindowTitle(tr("Find"));
setLayout(main); //<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Add this

...
QHBoxLayout* main = new QHBoxLayout;
main -> addLayout(l);
main -> addLayout(r);


setWindowTitle(tr("Find"));
setLayout(main); //<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Add this

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