Please try changing the screen resolution just to see if it impacts the problem. To be off by one line screams a wrong screen dpi being detected by Qt or alternatively improper x and y positioning (ie a y offset issue) of the widget.
Are you sure you have no 3rdparty apps that impact window frames and decorations?
Are you by any chance using a qt custom qss stylesheet?
Could you be using a broken font which does not match its reported font metrics?
Last edited by KevinH; 08-04-2019 at 03:49 PM.
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