Exporting plotwidget to image

[Varun Raj Kompella]

Hi, 

When I set the main window to be win=pg.GraphicsWindow(), I am able to export it to an image 

using pg_exporters.ImageExporter(win.scene())

Is there a way to do it when using plot widgets? 

For example: Is there a way to export the entire window of 'pyqtgraph/examples/PlotWidget.py' to an image?

Thanks, 

Varun