Answer / Mohd Adil Abbas

To repaint the entire form using InvalidateRect(), you can create a rectangle that covers the entire client area of the form and call InvalidateRect() with this rectangle as a parameter.n```delphinprocedure TForm1.Paint;nbeginn Canvas.Brush.Color := clCyan;n Canvas.Rectangle(ClientRect);nend;nprocedure TForm1.FormCreate(Sender: TObject);nbeginn InvalidateRect(Handle, ClientRect, False);nend;n```

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