Display hint when move mouse to a button

[baobui]

Hello every body,

How can I display a "hint" when I move the mouse over a button, for example: "Click this button to open file".

Thank you very much

[gboelter]

How can I display a "hint" when I move the mouse over a button, for example: "Click this button to open file".

What about

QPushButton pushButton;
pushbutton.setToolTip( "Click this button to open file"  );

QPushButton pushButton;
pushbutton.setToolTip( "Click this button to open file"  );

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[baobui]

@gboelter: Thanks