Resize application for different resolutions

[Mrdata]

Well, indeed i had several setMaximumWidth and setMinimumWidth for the widgets, i removed all of them and also reduced the font size ( i was using bold 10, changed it to normal 8), it helped a bit but it still have lot's of cutting at the bottom of the window. Maybe i'm indeed using too much widgets... Curious thing is that i'm almost cloning a similar program (don't know which language or program they used to make it), but in that program with the exactly same amount of widgets on screen (and same sizes), things work great between different resolutions. I'll now take a another look at all widgets to see how to sort this thing out

[wysota]

Could you attach the UI file here? I'd like to take a look at it.

[Mrdata]

Actually i'm not using any UI file in my application, i've choosed not to use it (can the problem be here? )
I'll take another look at this, and if i don't solve it today I'll try to clean the code and send
the source code file to you. Thanks.

[wysota]

In that case attach the code you use to create the user interface.

[Mrdata]

Here's how i initialize my application

Mainwindow = new QWidget;
setCentralWidget( Mainwindow );
Mainwindow->showMaximized();
 
Top_GroupBox = new QGroupBox( tr( "Group 1" ) );
QGridLayout *MyLayout1 = new QGridLayout;
 
.......
MyLayout1->addWidget( Label1, 1, 0, Qt::AlignRight );
MyLayout1->addWidget( LineEdit1, 1, 1, Qt::AlignLeft );
.......
Top_GroupBox->setLayout( MyLayout1 );
 
// create 2 more Qgridlayouts here
.....
// add all 3 Qgridlayouts to the mainwindow
.....

Mainwindow = new QWidget;
setCentralWidget( Mainwindow );
Mainwindow->showMaximized();

Top_GroupBox = new QGroupBox( tr( "Group 1" ) );
QGridLayout *MyLayout1 = new QGridLayout;

.......
MyLayout1->addWidget( Label1, 1, 0, Qt::AlignRight );
MyLayout1->addWidget( LineEdit1, 1, 1, Qt::AlignLeft );
.......
Top_GroupBox->setLayout( MyLayout1 );

// create 2 more Qgridlayouts here
.....
// add all 3 Qgridlayouts to the mainwindow
.....

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[wysota]

It'd be nice if you also provided the contents of the layouts and the call to setLayout on Mainwindow.