Layout without margin??

[zlosynus]

Hi,

when I wrote following simple code:

QPushButton button("Button");
button.show();

QPushButton button("Button");
button.show();

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it creates me window with button without any margins around.

But when I want to create window with two buttons, so I wrote following code:

QWidget mainwindow;
QHBoxLayout layout;
QPushButton button1("Button A");
QPushButton button2("Button B");
layout.addWidget(&button1);
layout.addWidget(&button2);
mainwindow.setLayout(&layout);
mainwindow.show();

QWidget mainwindow;
QHBoxLayout layout;
QPushButton button1("Button A");
QPushButton button2("Button B");
layout.addWidget(&button1);
layout.addWidget(&button2);
mainwindow.setLayout(&layout);
mainwindow.show();

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But it creates me margin around both buttons and I really dont want it at all.