Screen capture:Can an image with a specified resolution be generated. For example, 512 × 512.or Adjust the view to a specified resolution or size

Support Feature requests
1

screen capture:Can an image with a specified resolution be generated. For example, 512 × 512.or Adjust the view to a specified resolution or size

2

If you are doing this in a script you can temporarily unparent the view and specify the resolution you want and then restore the layout afterwards, something like this:

tdv = slicer.app.layoutManager().threeDWidget(0)
tdv.setParent(None)
tdv.show()
tdv.size = qt.QSize(512,512)
slicer.app.layoutManager().setLayout(slicer.vtkMRMLLayoutNode.SlicerLayoutConventionalView)
3

How to operate other views, such as Axial, Sagittal, or Coronal.

4

You can do the same, just get sliceWidgets by view id from the layoutManager.

Like slicer.app.layoutManager().sliceWidget('Red')