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Qt + Graph plotting on QFrame using QPainter+ rotation of QMainWindow

  • Hi,
    I have rotated QMainWindow to 90 degree using QGraphics View. Now i am not getting proper real time ECG graph on QFrame using QPaintEvent function. just i am getting current line and previous continuous lines will not visible. If i comment QMainWindow rotation function, everything is proper. Please tell me how to solve this.

    Thanks in advance.

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