set image size in openoffice calc with python code

1. resizing selected images

def ResizingSelectedImages(height = 10000, width = 8000):
    oDoc = getReady()
    cSelection = oDoc.getCurrentSelection()
    for loopi in range(cSelection.Count) :
        tmpImage = cSelection.getByIndex(loopi)
        tmpSize = tmpImage.Size
        tmpSize.Width = width
        tmpSize.Height = height
        
        tmpImage.setSize(tmpSize)

2. Resizing the first images (getByIndex(0)) in the selected sheet.

oSheet = oDoc.getSheets().getByIndex(0)
oDraw = oSheet.getDrawPage()
oImage = oDraw.getByIndex(0)

newSize = oImage.Size
newSize.Height = 20000
newSize.Width = 20000

oImage.setSize(newSize)